alt1=Primary Road 6 route markeralt2=1926 Iowa 16 route markeralt3=1961 Iowa 136 route marker route markeralt4=Iowa 330 route marker
Highway markers from different years
Highway names
InterstatesInterstate nn (I-nn)
US HighwaysU.S. Highway nn (US nn)
StateIowa nn
System links

State highways in the U.S. state of Iowa are owned and maintained by the Iowa Department of Transportation.

Number Length (mi)[1][2] Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
No. 1 236[3]380 Missouri state line near LamoniMinnesota state line near Northwood 01920-01-01192001926-01-011926 Jefferson Highway through Iowa; replaced by US 65 and US 69
Iowa 1 119.268191.943 Iowa 2 south of KeosauquaUS 151 south of Anamosa 01926-01-011926current
Iowa 2 233.80[4]376.26 US 6 near LewisIL 2 at Muscatine 01920-01-01192001939-01-011939 Renumbered Iowa 92 (renumbering approved 1938)
Iowa 2 251.376404.550 N-2 at Nebraska City, Neb.US 61 at Fort Madison 01941-01-011941current Formerly Iowa 3
Iowa 3 267.07[4]429.81 N-2 at Nebraska City, Neb.IL 9 at Fort Madison 01920-01-01192001941-01-011941 Renumbered Iowa 2
Iowa 3 323.102519.982 SD 50 near WestfieldNorthwest Arterial at Dubuque 01945-01-011945current Replaced part of Iowa 5, all of Iowa 221, and part of Iowa 10
Iowa 4 29.70[5]47.80 US 59 / Iowa 141 at DenisonIowa 175 at Odebolt 01920-01-01192001968-12-311968 Renumbered Iowa 39
Iowa 4 146.343235.516 Iowa 44 in PanoraMN 4 near Estherville 01969-01-011969current Formerly Iowa 17
Iowa 5 77.64[5]124.95 Iowa 3 near AureliaUS 169 at Fort Dodge 01920-01-01192001968-12-311968 Renumbered Iowa 7
Iowa 5 103.540166.631 Route 5 south of CincinnatiI-35 near West Des Moines 01969-01-011969current Formerly portion of Iowa 60
No. 6 369[3]594 Nebraska state line at Council BluffsIllinois state line at Clinton 01920-01-01192001926-01-011926 Lincoln Highway through Iowa; replaced by US 30
Iowa 6 104167 Route 5 near CincinnatiUS 32 in Des Moines 01926-01-01192601931-01-011931 Formerly No. 17 and No. 59; became part of Iowa 60 when US 6 extended into Iowa
Iowa 7 140.69[4]226.42 US 6 at Council BluffsCity US 6 in Des Moines 01920-01-01192001939-01-011939 Replaced by an extended Iowa 64
Iowa 7 0.47[6]0.76 Iowa 99 in OakvilleOakville 01955-01-01195501957-01-011957 Renumbered Iowa 407; spur route
Iowa 7 24.18[5]38.91 I-29 / US 77 in Sioux CityIowa 3 near Brunsville 01957-01-01195701968-12-311968 Formerly Iowa 29; portion became Iowa 985
Iowa 7 73.661118.546 Iowa 3 near AureliaUS 169 at Fort Dodge 01969-01-011969current Formerly Iowa 5
No. 8 283[3]455 No. 6 in Council BluffsIllinois state line at Burlington 01920-01-01192001926-01-011926 Replaced by US 34
Iowa 8 13.96122.468 US 63 in TraerUS 218 near Garrison 01926-01-011926current
Iowa 9 295.088474.898 SD 42 near LarchwoodWIS 82 at Lansing 01920-01-011920current
Iowa 10 104.512168.196 SD 46 near HawardenIowa 4 at Havelock 01920-01-011920current
Iowa 11 96.60[4]155.46 US 151 / Iowa 64 in Cedar RapidsUS 52 / Iowa 24 in Calmar 01920-01-01192001941-01-011941 Replaced by Iowa 150, which was proposed to become part of US 150
Iowa 12 46.27474.471 US 20 / US 75 at Sioux CityIowa 10 in Hawarden 01920-01-011920current Signed as US 20 Bus through Sioux City
Iowa 13 85.235137.172 US 30 / US 151 near BertramUS 52 near Froelich 01920-01-011920current
Iowa 14 187.838302.296 Iowa 2 at CorydonUS 18 / US 218 Bus in Charles City 01920-01-011920current
Iowa 15 111179 US 30 in AmesMinnesota state line near Lake Mills 01920-01-01192001935-01-011935 Replaced by US 69
Iowa 15 14.92[5]24.01 Iowa 137 at EddyvilleUS 63 in Ottumwa 01937-01-01193701968-12-311968 Renumbered Iowa 23
Iowa 15 4.6557.491 Route 15 south of MiltonIowa 2 at Milton 01969-01-01196902003-01-012003 Formerly Iowa 23
Iowa 15 63.578102.319 Iowa 3 near PocahontasMN 15 near Armstrong 01969-01-011969current Formerly Iowa 44
Iowa 16 239385 Missouri state line near ReddingMinnesota state line near Ledyard 01920-01-01192001930-01-011930 Replaced by US 169
Iowa 16 65.488105.393 US 34 near AgencyUS 61 at Wever 01930-01-011930current
Iowa 17 147.48[5]237.35 Iowa 64 in PanoraMN 4 near Estherville 01920-01-01192001968-12-311968 Renumbered Iowa 4
Iowa 17 102.789165.423 Iowa 141 at GrangerUS 18 near Wesley 01969-01-011969current Formerly portion of Iowa 60
No. 18 148238 Missouri state line at BraddyvilleNo. 23 at Sac City 01920-01-01192001926-01-011926 Replaced by US 71
No. 19 302486 South Dakota state line near InwoodWisconsin state line at Lansing 01920-01-01192001926-01-011926 East end truncated to US 75 for a month in 1926; replaced by US 18
Iowa 19 2.44[6]3.93 Backbone State ParkIowa 3 / Iowa 13 near Strawberry Point 01927-01-01192701957-01-011957 Renumbered Iowa 410
No. 20 324[3]521 Illinois state line at KeokukMinnesota state line near Burr Oak 01920-01-01192001926-01-011926 Replaced by US 61 and US 55
Iowa 21 115185 Minnesota state line near AllendorfIowa 141 near Denison 01920-01-01192001934-01-011934 Replaced by Iowa 73 (proposed US 73)
Iowa 21 97.152156.351 Iowa 149 near HedrickUS 20 / Iowa 27 at Waterloo 01934-01-011934current Formerly ended at Iowa 92; extended south in 1980
No. 22 34[3]55 No. 5 at Le MarsMinnesota state line north of Rock Rapids 01920-01-01192001926-01-011926 Replaced by US 75
Iowa 22 97.905157.563 Iowa 21 near ThornburgUS 61 at Davenport 01926-01-011926current
No. 23 130[3]210 South Dakota state line at Sioux CityNo. 16 at Fort Dodge 01920-01-01192001926-01-011926 Replaced by US 20
Iowa 23 4.78[5]7.69 Route 15 south of MiltonIowa 2 at Milton 01926-01-01192601968-12-311968 Formerly part of No. 11; renumbered Iowa 15
Iowa 23 14.31623.039 US 63 in OttumwaIowa 137 at Eddyville 01969-01-01196901997-01-011997 Formerly Iowa 15; partially replaced by US 63
Iowa 23 16.02225.785 Iowa 92 at OskaloosaIowa 149 near Fremont 01997-01-011997current Formerly US 63
Iowa 24 127204 US 71 near LymanUS 63 in Oskaloosa 01920-01-01192001927-01-011927 Replaced by an extended Iowa 2
Iowa 24 27.54644.331 US 18 / US 63 in New HamptonUS 52 / Iowa 150 in Calmar 01928-01-011928current
No. 25 2032 No. 15 / No. 24 at WintersetNo. 2 / No. 17 at Adel 01920-01-01192001926-01-011926 Replaced by relocated Iowa 16
Iowa 25 103.419166.437 Iowa 2 near BentonUS 30 near Scranton 01926-01-011926current Continued south to the Missouri state line until 1978, and to Blockton until 1980
Iowa 26 1016 US 18 near Rock ValleyUS 18 near Rock Valley 01920-01-01192001930-01-011930 Replaced by relocated US 18 (portions were cancelled in exchange for relocated US 18)
Iowa 26 9.52[5]15.32 US 18 in InwoodIowa 9 near Larchwood 01930-01-01193001968-12-311968 Renumbered Iowa 182
Iowa 26 11.37018.298 Iowa 9 in LansingMN 26 at New Albin 01969-01-011969current Formerly Iowa 182
Iowa 27 21.234.1 Iowa 12 in AkronUS 75 in Le Mars 01920-01-01192001929-01-011929 Replaced by an extended Iowa 5
Iowa 27 1118 Nebraska borderUS 30 / US 75 in Missouri Valley 01929-01-01192901930-01-011930 Renumbered Iowa 130
Iowa 27 6.86[7]11.04 AlvordUS 75 near Rock Rapids 01930-01-01193001980-01-011980 Spur route; originally from US 75 to George

Iowa 27
281.689453.335 Route 27 near Wayland, Mo.I-35 at the Minnesota state line 02001-01-012001current Avenue of the Saints
No. 28 72[3]116 No. 6 / No. 11 in Cedar RapidsNo. 5 / No. 20 in Dubuque 01920-01-01192001926-01-011926 Replaced by US 161
Iowa 28 21.61334.783 Iowa 92 at MartensdaleI-35 / I-80 at Johnston 01926-01-011926current Previously ended at Iowa 5; extended to US 6 in 1980, and to I-80 in 1991
Iowa 29 22.06[6]35.50 I-29 / US 77 in Sioux CityIowa 3 near Brunsville 01920-01-01192001957-01-011957 Renumbered Iowa 7 when I-29 was designated
No. 30 2540 No. 23 at MovilleNo. 5 at Remsen 01920-01-01192001926-01-011926 Renumbered Iowa 140
Iowa 31 38.50461.966 US 59 near QuimbyIowa 141 near Smithland 01920-01-011920current
No. 32 58.0 No. 5 near CleghornCleghorn 01920-01-01192001926-01-011926 Renumbered Iowa 145
Iowa 32 7.6812.36 Iowa 9 near Spirit LakeUS 71 near Milford 01934-01-01193401981-01-011981 extended and renumbered Iowa 86 to match Minnesota
Iowa 32 5.101[7]8.209 US 20 at DubuqueUS 52 / Iowa 3 at Sageville 01995-01-01199502020-01-012020
Iowa 33 3.45.5 MeridenIowa 5 01920-01-01192001930-01-011930
Iowa 33 55.95[5]90.04 US 75 at Le MarsMN 60 at Bigelow, Minn. 01930-01-01193001968-12-311968 Renumbered Iowa 60
No. 34 68109 No. 4 at DenisonNo. 12 at Sioux City 01920-01-01192001926-01-011926 Renumbered Iowa 141
Iowa 35 49.00[8]78.86 Iowa 37 near TurinUS 71 near Odebolt 01920-01-01192001948-01-011948 Replaced by an extended Iowa 175
Iowa 35 0.23[6]0.37 US 18 near GarnerGarner 01954-01-01195401957-01-011957 Spur route; renumbered Iowa 409 when I-35 was designated
Iowa 36 2.9834.801 Wall LakeUS 71 near Wall Lake 01920-01-01192002003-01-012003 Spur route
Iowa 37 40.32164.890 Iowa 175 near TurinUS 59 near Earling 01920-01-011920current Continued east to Irwin until 1982
Iowa 38 98.941159.230 US 61 Bus / Iowa 92 in MuscatineIowa 3 near Edgewood 01920-01-011920current
Iowa 39 11.68[5]18.80 US 30 near LoganIowa 64 / Iowa 191 at Portsmouth 01920-01-01192001968-12-311968 Renumbered Iowa 44
Iowa 39 24.32139.141 US 59 at DenisonIowa 175 at Odebolt 01969-01-011969current Formerly Iowa 4
No. 40 262[3]422 No. 20 in KeokukMinnesota state line near Mona 01920-01-01192001926-01-011926 Replaced by US 161, US 30, and US 218
Iowa 40 3.5245.671 AllertonIowa 2 near Corydon 01926-01-01192602003-01-012003 Spur route
Iowa 41 1.8272.940 MalvernUS 34 near Malvern 01920-01-01192002003-01-012003 Spur route
Iowa 42 4.186.73 US 275 / Iowa 2 near RivertonRiverton 01920-01-01192001980-12-011980 Spur route
Iowa 43 1.752.82 RingstedIowa 15 near Ringsted 01920-01-01192001980-01-011980 Spur route
Iowa 44 63.95[5]102.92 Iowa 3 near PocahontasMN 15 near Armstrong 01920-01-01192001968-12-311968 Renumbered Iowa 15
Iowa 44 104.524168.215 US 30 near LoganIowa 141 at Grimes 01969-01-011969current Formerly Iowa 39 and Iowa 64
Iowa 45 1.3242.131 ManillaIowa 141 near Manilla 01920-01-01192002003-01-012003 Spur route
Iowa 46 64.84[4]104.35 US 59 near DenisonIowa 17 (now Iowa 144) in Perry 01920-01-01192001941-01-011941 Originally a double spur route; replaced by an extended Iowa 141
Iowa 46 4.346.98 Iowa 90 in Des MoinesIowa 28 (now Army Post Road) in Des Moines 01942-01-01194201950-01-011950 Now 9th Street, Mulberry Street, and 7th Street
Iowa 46 6.57[9]10.57 Iowa 5 near AvonIowa 163 in Des Moines 01953-01-01195301998-01-011998
Iowa 47 1321 Iowa 287 in FarnhamvilleUS 169 near Harcourt 01920-01-01192001940-01-011940 Spur route; replaced by an extended Iowa 175
Iowa 47 0.821.32 Iowa 14 near AllisonAllison 01941-01-01194101980-01-011980 Spur route
Iowa 48 47.91977.118 US 59 at ShenandoahUS 6 near Lewis 01920-01-011920current
Iowa 49 27.22843.819 Iowa 2 in BedfordUS 34 in Adams County 01920-01-01192002003-01-012003 Was originally a spur route from US 34 to Lenox
Iowa 50 7.13511.483 US 169 near LehighLehigh 01920-01-01192002003-01-012003 Spur route
Iowa 51 11.00717.714 US 18 / US 52 at PostvilleIowa 9 near Waukon 01920-01-011920current
Iowa 52 7[10]11 ElmaUS 63 east of Elma 01920-01-01192001934-01-011934 Spur route; renumbered Iowa 272 when US 52 extended into Iowa
No. 53 1321 No. 14 near RockfordNo. 19 near Nora Springs 01920-01-01192001926-01-011926 Renumbered Iowa 147 to avoid conflict with US 53 (which became US 55 in the revised numbering plan; see below)
Iowa 53 3.04[8]4.89 Iowa 3 near ClarksvilleClarksville 01926-01-01192601949-01-011949 Formerly No. 55; became part of Iowa 188
Iowa 53 1.43[11]2.30 GowrieIowa 175 near Gowrie 01953-01-01195301969-01-011969 Spur route
Iowa 54 2.994.81 Marble RockIowa 14 in Floyd County 01920-01-01192001980-01-011980 Spur route
No. 55 34.8 No. 10 near ClarksvilleClarksville 01920-01-01192001926-01-011926 Renumbered Iowa 53 to avoid conflict with US 55
Iowa 55 4.5067.252 SeymourIowa 2 near Promise City 01934-01-01193402003-01-012003 Spur route
Iowa 56 24.43239.319 Iowa 150 at West UnionIowa 13 at Elkader 01920-01-011920current
Iowa 57 18.41[12]29.63 Iowa 14 near FernIowa 58 in Cedar Falls 01920-01-01192001986-01-011986 Section from Iowa 58 to US 20 was deleted in 1980; removed after US 20 freeway was constructed
Iowa 57 43.76570.433 US 65 near Iowa FallsUS 218 / Iowa 27 / Iowa 58 at Cedar Falls 01986-01-011986current Formerly US 20
Iowa 58 12.03019.360 US 63 at HudsonUS 218 / Iowa 27 / Iowa 57 at Cedar Falls 01920-01-011920current
Iowa 59 197[10]317 Minnesota state lineIowa 5 at Albia 01920-01-01192001934-01-011934 Replaced by US 63 and Iowa 137
Iowa 60 233.24[5]375.36 Route 5 south of CincinnatiUS 18 near Wesley 01920-01-01192001968-12-311968 Renumbered Iowa 5 and Iowa 17
Iowa 60 58.77194.583 US 75 at Le MarsMN 60 at Bigelow, Minn. 01969-01-011969current Formerly Iowa 33
No. 61 73117 No. 28 at AnamosaNo. 6 in Lyons 01920-01-01192001926-01-011926 Renumbered Iowa 117 and Iowa 136
Iowa 62 19.63331.596 Iowa 64 at MaquoketaUS 52 in Bellevue 01920-01-011920current
No. 63 2439 No. 59 in New SharonNo. 7 in Grinnell 01920-01-01192001926-01-011926 Renumbered Iowa 146
Iowa 64 3251 Iowa 163 at Prairie CityUS 30 in Colo 01920-01-01192001936-01-011936 Renumbered Iowa 117
Iowa 64 64.355103.569 US 151 at AnamosaUS 52 / IL 64 at Savanna, Ill. 01939-06-201939current Formerly Iowa 117
No. 65 2134 No. 8 at LucasNo. 1 south of Indianola 01920-01-01192001926-01-011926 Renumbered Iowa 137
Iowa 66 711 HumestonIowa 3 near Humeston 01920-01-01192001930-01-011930 Spur route; replaced by an extended Iowa 137
Iowa 66 7.01111.283 Iowa 2 near DiagonalDiagonal 01930-01-01193002003-01-012003 Spur route
Iowa 67 6[10]9.7 SeymourIowa 3 near Promise City 01920-01-01192001934-01-011934 Spur route; renumbered Iowa 55 when US 67 extended into Iowa
Iowa 68 1.9333.111 MelroseUS 34 near Melrose 01920-01-01192002003-01-012003 Spur route
No. 69 34.8 No. 3 near MysticMystic 01920-01-01192001926-01-011926 Renumbered Iowa 138
Iowa 70 8.20[5]13.20 MacksburgUS 169 near Macksburg 01920-01-01192001966-01-011966 Spur route
Iowa 70 23.95438.550 Iowa 92 at Columbus JunctionUS 6 in West Liberty 01969-01-011969current Formerly Iowa 76
No. 71 34.8 MoultonNo. 3 near Moulton 01920-01-01192001926-01-011926 Renumbered Iowa 142
Iowa 72 10.89[12]17.53 US 69 west of DowsI-35 east of Dows 01920-01-01192001986-01-011986 Originally a spur route; extended east from Dows to I-35 in 1980
Iowa 73 35.957.8 Iowa 8 in DysartUS 6 in Marengo 01920-01-01192001934-01-011934 Renumbered Iowa 212 to avoid conflict with new Iowa 73, which was proposed to become part of US 73
Iowa 73 225362 Missouri state line south of ShenandoahMinnesota state line near Allendorf 01934-01-01193401935-01-011935 Was proposed to become part of US 73; replaced by US 59
Iowa 73 14.97[13]24.09 Iowa 141 in Coon RapidsIowa 44 01936-01-01193601972-01-011972
Iowa 74 38.27[4]61.59 Iowa 38 in TiptonUS 61 in Davenport 01920-01-01192001941-01-011941 Replaced by Iowa 150, which was proposed to become part of US 150
Iowa 74 11.16817.973 US 151 in Cedar RapidsPalo 01943-01-01194301966-01-011966 Spur route; renumbred Iowa 94 when I-74 was designated
No. 75 23.2 No. 5 near MarcusMarcus 01920-01-01192001926-01-011926 Renumbered Iowa 143
Iowa 76 25.98[5]41.81 Columbus CityUS 6 in West Liberty 01920-01-01192001968-12-311968 Renumbered Iowa 70
Iowa 76 48.91178.715 US 18 near McGregorMN 76 near Eitzen, Minn. 01969-01-011969current Formerly portion of Iowa 13
Iowa 77 2.6854.321 Iowa 92 near KeotaKeota 01920-01-01192002003-01-012003 Spur route; continued south to Iowa 78 until 1980
Iowa 78 58.42994.032 Iowa 149 near MartinsburgUS 61 near Morning Sun 01920-01-011920current
Iowa 79 1.842.96 Iowa 2 near BonaparteBonaparte 01920-01-01192001980-01-011980 Spur route
Iowa 79 5.6379.072 Geode State ParkUS 34 in Middletown 01980-01-01198002003-01-012003 Park access road
Iowa 80 4.00[6]6.44 US 34 near West BurlingtonUS 61 in Burlington 01920-01-01192001957-01-011957 Spur route; renumbered Iowa 406 when I-80 was designated
Iowa 81 9.20[5]14.81 Iowa 92 near West ChesterIowa 22 at Wellman 01920-01-01192001968-12-311968 Renumbered Iowa 114
Iowa 81 2.2153.565 Route 81 near FarmingtonIowa 2 near Farmington 01969-01-011969current Formerly Iowa 114
Iowa 82 3.7736.072 BlairstownUS 30 near Blairstown 01920-01-01192002003-01-012003 Spur route
Iowa 83 34.19155.025 US 59 in AvocaIowa 148 in Anita 01920-01-011920current Continued west to Neola until 2003
Iowa 84 6.09[8]9.80 College SpringsUS 71 near Shambaugh 01920-01-01192001943-01-011943 Spur route; replaced by an extended Iowa 333
Iowa 84 2.133.43 The Eastern Iowa AirportI-380 near Cedar Rapids 01943-01-01194301980-01-011980 Airport access road
Iowa 85 8.40813.531 Montezuma city limitsIowa 21 near Deep River 01920-01-011920current
Iowa 86 46.4 US 34 in Council BluffsLake Manawa 01920-01-01192001928-01-011928 Spur route; restored in 1931 as Iowa 241, later Iowa 192
Iowa 86 3.76.0 US 61 (now Sunnyside Avenue) in BurlingtonUS 61 (now Summer Street) in Burlington 01929-01-01192901945-01-011945 Now Roosevelt Avenue and West Avenue
Iowa 86 0.470.76 FertileIowa 9 at Fertile 01945-01-01194501980-01-011980 Spur route
Iowa 86 12.51920.147 US 71 near MilfordMN 86 near Spirit Lake 01980-01-011980current
Iowa 87 4.06[14]6.53 US 69 west of ElkhartElkhart 01920-01-01192001983-01-011983 Spur route
Iowa 88 37.65[4]60.59 US 6 in AltoonaUS 30 near Marshalltown 01920-01-01192001939-01-011939 Originally a spur route; replaced by an extended Iowa 64
Iowa 88 8.0112.89 US 61 / Iowa 2 in Fort MadisonIowa 16 in Denmark 01940-01-01194001980-01-011980 Originally a spur route
Iowa 89 25.87[4]41.63 US 169 near BoutonIowa 64 in Johnston 01920-01-01192001941-01-011941 Originally a spur route; replaced by an extended Iowa 141
Iowa 89 7.6912.38 Iowa 141 near WoodwardIowa 17 in Madrid 01946-01-01194601980-11-011980 Replaced by an extended Iowa 210
No. 90 4064 No. 17 near BoutonNo. 16 at Harcourt 01920-01-01192001926-01-011926 Replaced by relocated Iowa 16
Iowa 90 1626 Iowa 14 at Grundy CenterIowa 59 near Voorhies 01926-01-01192601932-01-011932 Formerly No. 58; became part of Iowa 58 again
Iowa 90 16.32[15]26.26 I-80 in Dallas CountyI-35 in Des Moines 01932-01-01193201981-01-011981
Iowa 91 2.69[4]4.33 US 169 near HarcourtDayton 01920-01-01192001940-01-011940 Spur route; replaced by an extended Iowa 175
Iowa 91 4.186.73 LedyardUS 169 near Ledyard 01940-01-01194001980-05-011980 Spur route
Iowa 91 4.6437.472 Iowa 9 in Lyon CountyMN 91 at the Minnesota state line 01980-01-01198002003-01-012003
Iowa 92 1.33[4]2.14 Iowa 101 near UrbanaUrbana 01920-01-01192001939-01-011939 Spur route; became Iowa 363
Iowa 92 274.231441.332 US 275 / N-92 in Council BluffsIL 92 at Muscatine 01939-01-011939current Formerly Iowa 2
Iowa 93 29.53447.530 US 63 near TripoliIowa 150 in Fayette 01920-01-011920current
Iowa 94 13.12[6]21.11 US 151 in MarionUS 30 in Mount Vernon 01920-01-01192001958-01-011958 Replaced by relocated Iowa 150
Iowa 94 11.16817.973 US 151 Business in Cedar RapidsPalo 01966-01-01196602003-01-012003 Spur route
Iowa 95 69.7 US 169 near BoutonWoodward 01920-01-01192001932-01-011932 Spur route; replaced by an extended Iowa 89
Iowa 95 3.705.95 CarbonIowa 148 north of Corning 01932-01-01193201983-01-011983 Spur route; section inside Carbon eliminated 1980; rest redesignated Iowa 951
Iowa 96 16.63526.771 Iowa 14 near GladbrookUS 63 near Gladbrook 01920-01-011920current
Iowa 97 1.5322.466 RussellUS 34 near Russell 01920-01-01192002003-01-012003 Spur route
Iowa 98 11.10[8]17.86 US 34 near AgencySelma 01920-01-01192001944-01-011944 Spur route; replaced by an extended Iowa 16, and Iowa 98 was reassigned to the old route of Iowa 16
Iowa 98 1.8142.919 LeandoIowa 16 near Douds 01944-01-01194402017-01-012017 Spur route
Iowa 99 3353 US 30 near CamancheUS 61 in Davenport 01920-01-01192001931-01-011931 Replaced by US 55 (later US 67)
Iowa 99 33.23253.482 US 34 in BurlingtonUS 61 in Wapello 01931-01-01193102003-01-012003
Iowa 100 44.42[6]71.49 US 275 / Iowa 375 in Council BluffsUS 71 in Lyman 01920-01-01192001958-01-011958 Originally a spur route; replaced by relocated Iowa 92
Iowa 100 6.12[16]9.85 US 6 near LewisUS 71 near Atlantic 01958-01-01195801958-01-011958 Former section of Iowa 92; renumbered Iowa 414 due to confusion with old Iowa 100
Iowa 100 16.14025.975 US 30 / US 218 in Cedar RapidsUS 151 / Iowa 13 near Marion 01984-01-011984current
Iowa 101 15.5625.04 US 218 in VintonIowa 150 north of Urbana 01920-01-01192001984-01-011984 Replaced by a relocated Iowa 150
Iowa 102 1.822.93 HawkeyeUS 18 near Hawkeye 01920-01-01192001980-01-011980
Iowa 102 0.5010.806 New Sharon city limitsUS 63 / Iowa 146 in New Sharon 01980-01-011980current Unsigned highway; formerly extended to Pella
Iowa 103 15.64925.185 US 218 near DonnellsonUS 61 / Iowa 2 in Fort Madison 01920-01-01192002003-01-012003
No. 104 2032 No. 8 near Council BluffsNo. 4 in Macedonia 01920-01-01192001926-01-011926 First highway to be decommissioned in Iowa
Iowa 104 1.532.46 WoodburnUS 34 near Woodburn 01927-01-01192701980-01-011980 Spur route
Iowa 105 34.23[12]55.09 US 69 in Lake MillsUS 218 in St. Ansgar 01920-01-01192001992-01-011992 Section from US 69 to Winnebago–Worth county line last shows on 1994 map, so was signed until 1994
Iowa 106 8.9814.45 Iowa 107 in Clear LakeUS 65 in Mason City 01920-01-01192001980-01-011980
Iowa 107 27.57944.384 Iowa 3 near AlexanderCR B35 near Clear Lake 01920-01-01192002011-01-012011 All but parts in Meservey and Thornton removed in 2003
Iowa 108 1.181.90 DeltaIowa 92 near Delta 01923-01-01192301980-01-011980 Spur route
Iowa 109 1.2682.041 OxfordUS 6 near Oxford 01923-01-01192302003-01-012003 Spur route
Iowa 110 0.71.1 LarrabeeIowa 73 in Larrabee 01923-01-01192301934-01-011934 Spur route; decommissioned when Iowa 73 (proposed US 73) was relocated to go through Larrabee
Iowa 110 14.78923.801 US 20 at SchallerIowa 7 at Storm Lake 01934-01-011934current
Iowa 111 26.72[17]43.00 KanawhaWoden 01923-01-01192301990-01-011990 Double spur route with US 18; originally a spur route
Iowa 112 34.8 Iowa 13Edgewood 01923-01-01192301930-01-011930 Spur route; replaced by an extended Iowa 10 (this section now Iowa 3)
Iowa 112 5.198.35 VolgaIowa 13 near Osborne 01931-01-01193101980-01-011980 Spur route
Iowa 113 34.09[4]54.86 Iowa 10 near EdgewoodUS 151 in Monticello 01924-01-01192401938-01-011938 Replaced by an extended Iowa 38
Iowa 113 1.1871.910 Iowa 64 near SpraguevilleSpragueville 01938-01-01193802003-01-012003 Spur route
Iowa 114 2.22[5]3.57 Route 81 near FarmingtonIowa 2 near Farmington 01923-01-01192301968-12-311968 Renumbered Iowa 81
Iowa 114 9.2014.81 Iowa 92 near West ChesterIowa 22 at Wellman 01969-01-01196901981-01-011981 Formerly Iowa 81
Iowa 115 1.34[11]2.16 US 69Story City 01923-01-01192301969-01-011969 Spur route
Iowa 115 1.2371.991 US 34 near StantonViking Lake State Park 01980-01-01198002003-01-012003 Park access road
Iowa 116 1.57[18]2.53 US 20 near ManchesterManchester Fish Hatchery 01923-01-01192301976-01-011976 Fish hatchery access road; renumbered Iowa 938 because US 20 was rerouted
Iowa 116 2.7764.468 Iowa 3 in WaverlyUS 218 near Waverly 01998-01-011998current Section of US 218 Business in Waverly
Iowa 117 63101 US 161 at AnamosaUS 52 / IL 64 at Savanna, Ill. 01923-01-01192301936-01-011936 Renumbered Iowa 64
Iowa 117 18.56229.873 Iowa 163 at Prairie CityUS 65 / Iowa 330 near Mingo 01939-06-201939current Formerly Iowa 64
Iowa 118 4.06[17]6.53 Steamboat RockIowa 175 near Eldora 01923-01-01192301989-01-011989 Spur route
Iowa 119 1.041.67 DorchesterIowa 76 near Dorchester 01923-01-01192301980-01-011980 Spur route
Iowa 120 0.801.29 StantonUS 34 near Stanton 01924-01-01192401980-01-011980 Spur route
Iowa 121 0.51[19]0.82 Dolliver Memorial State ParkIowa 50 near Lehigh 01924-01-01192401964-01-011964 Park access road
Iowa 122 5.47[16]8.80 Iowa 150 in DavenportUS 61 in Davenport 01924-01-01192401960-01-011960 Now Pine Street, Cheyenne Avenue, Division Street, Locust Street, and Marquette Street
Iowa 122 3.044.89 Iowa 3 near ClarksvilleClarksville 01964-01-01196401965-01-011965 Former section of Iowa 188; became part of Iowa 188 again
Iowa 122 12.26419.737 I-35 / US 18 at Clear LakeMason City city limits 01999-01-011999current
Iowa 123 10.5116.91 I-35 in Des MoinesIowa 90 in Des Moines 01924-01-01192401959-01-011959 Partially replaced by Iowa 60; rest now Fleur Drive
Iowa 123 0.450.72 US 34 near RomeRome 01969-01-01196901980-01-011980 Spur route; inside Rome stayed in the highway system until 1981
Iowa 124 2.5674.131 Iowa 4 in Calhoun CountyTwin Lakes State Park 01924-01-01192402003-01-012003 Park access road
Iowa 125 3.265.25 SalemUS 218 east of Salem 01924-01-01192401981-01-011981 Spur route; section inside Salem deleted in 1980
Iowa 126 1.282.06 US 6 near MitchellvilleMitchellville 01924-01-01192401980-01-011980 Spur route
Iowa 127 15.98525.725 I-29 near MondaminUS 30 in Logan 01924-01-011924current
Iowa 128 6.98211.236 Iowa 13 near ElkaderUS 52 near Garnavillo 01924-01-011924current
Iowa 129 0.45[11]0.72 US 34 near RomeRome 01924-01-01192401969-01-011969 Spur route; renumbered Iowa 123 when I-129 was designated
Iowa 130 1219 Iowa 9 near CrescoMinnesota border near Harmony, Minn 01925-01-01192501930-01-011930 Renumbered Iowa 139 so Iowa 130 could be reused as a spur of US 30
Iowa 130 1118 Nebraska borderUS 30 / US 75 in Missouri Valley 01930-01-01193001931-01-011931 Formerly Iowa 27; replaced by relocated US 30
Iowa 130 6.65[5]10.70 Maquoketa Caves State ParkUS 61 near Maquoketa 01931-01-01193101966-01-011966 Park access road
Iowa 130 32.02351.536 Iowa 38 in TiptonI-80 / US 61 at Davenport 01969-01-011969current
Iowa 131 2[10]3.2 US 20 near HolsteinUS 59 near Holstein 01925-01-01192501937-01-011937 Section from US 20 to Holstein replaced by realigned US 59; rest given to county because US 59 was realigned
Iowa 131 4.5207.274 Iowa 21 in Belle PlaineUS 30 near Belle Plaine 01937-01-01193702003-01-012003 Part of the Lincoln Highway
Iowa 132 5.74[19]9.24 I-35 / I-80 in Des MoinesIowa 90 (now US 6) in Des Moines 01925-01-01192501963-01-011963 Now Douglas Avenue
Iowa 133 4.23[16]6.81 US 34 / US 218 in Mount PleasantOakland Mills Park (then a state park) 01925-01-01192501961-01-011961 Park access road
Iowa 133 0.9701.561 US 30 in NevadaNevada 01964-01-01196402003-01-012003 Spur route
Iowa 134 711 US 65 near HubbardIowa 58 01925-01-01192501930-01-011930 Replaced by relocated Iowa 58
Iowa 134 813 Nebraska state lineUS 34 / US 275 in Glenwood 01930-01-01193001935-01-011935 Replaced by relocated US 34
Iowa 134 4.066.53 US 65 near HamptonGeneva 01935-01-01193501980-01-011980 Spur route
Iowa 134 1.75[20]2.82 Beed's Lake State ParkIowa 3 near Hampton 01980-01-01198001987-01-011987 Park access road
Iowa 135 0.75[21]1.21 US 30 near Le GrandLe Grand 01926-01-01192601954-01-011954 Spur route; replaced by relocated US 30; Iowa 135 on route shown below
Iowa 135 1.963.15 MontourUS 30 near Montour 01954-01-01195401980-01-011980 Spur route
Iowa 136 87.611140.996 IL 136 at ClintonUS 20 / US 52 at Dyersville 01926-01-011926current
Iowa 137 2134 US 34 at LucasUS 65 near Indianola 01926-01-01192601934-01-011934 Formerly No. 65; replaced by realigned US 65
Iowa 137 14.52623.377 Iowa 5 at AlbiaUS 63 / Iowa 163 at Eddyville 01934-01-011934current Formerly Iowa 59
Iowa 138 3.16[22]5.09 Iowa 2 near MysticMystic 01926-01-01192601973-01-011973 Formerly No. 69
Iowa 139 2134 US 161 in Iowa CityIowa 38 near Rochester 01926-01-01192601929-01-011929 Formerly No. 74; replaced by an extended Iowa 1
Iowa 139 11.43118.396 Iowa 9 near CrescoMN 139 near Harmony, Minn 01930-01-011930current Formerly Iowa 130; continued south to Protivin from 1935 to 1980
Iowa 140 25.30940.731 US 20 at MovilleIowa 3 at Remsen 01926-01-011926current Formerly No. 30; continued south to Sloan from 1931 to 1961, and to Hornick from 1961 to 1964; section from Kingsley to Remsen deleted in 1965, but restored in 1980
Iowa 141 155.362250.031 I-29 near SloanI-35 / I-80 at Grimes 01926-01-011926current
Iowa 142 10.50[5]16.90 Route 202 at Coatsville, MoIowa 2 near Moulton 01926-01-01192601968-12-311968 Renumbered Iowa 202
Iowa 142 20.90133.637 Iowa 2 in PlanoIowa 5 near Moravia 01980-01-01198002003-01-012003
Iowa 143 12.04919.391 Iowa 3 at MarcusIowa 10 at Granville 01926-01-011926current
Iowa 144 34.03954.780 Iowa 141 at PerryIowa 175 near Harcourt 01926-01-011926current
Iowa 145 58.0 Iowa 5 near CleghornCleghorn 01926-01-01192601931-01-011931 Formerly No. 32
Iowa 145 7.40811.922 I-29 near ThurmanUS 275 near Sidney 01931-01-01193102003-01-012003 Originally a spur route west to Thurman; extended west in 1980
Iowa 146 42.73568.775 US 63 / Iowa 102 in New SharonUS 30 in Le Grand 01926-01-011926current
Iowa 147 6.70610.792 RockfordIowa 14 in Floyd County 01926-01-01192602003-01-012003 Spur route
Iowa 148 66.828107.549 Route 148 near BedfordI-80 / US 6 near Anita 01926-01-011926current
Iowa 149 65.897106.051 US 34 in OttumwaI-80 near Williamsburg 01926-01-011926current Section from I-80 to US 6 removed 1985
Iowa 150 1931 US 32 at HomesteadUS 30 near Cedar Rapids 01926-01-01192601930-01-011930 Formerly No. 13; replaced by an extended Iowa 149
Iowa 150 1016 SchleswigIowa 141 near Denison 01930-01-01193001930-01-011930 Replaced by an extended Iowa 21
Iowa 150 22.9636.95 US 30 / Iowa 17 in JeffersonIowa 64 in Panora 01931-01-01193101941-01-011941 Replaced by relocated Iowa 17 to avoid conflict with new Iowa 150, which was proposed to become part of US 150
Iowa 150 85.093136.944 US 218 at VintonUS 52 / Iowa 24 at Calmar 01941-01-011941current
Iowa 151 13[10]21 US 71 at AuburnIowa 17 near Lake City 01926-01-01192601938-01-011938 Formerly No. 35; renumbered Iowa 188 when US 151 extended into Iowa
Iowa 152 1.312.11 US 34 near MurrayMurray 01926-01-01192601980-01-011980 Formerly No. 8
Iowa 152 1.4022.256 I-35 near OsceolaUS 69 at Osceola 01980-01-01198002014-01-012014
Iowa 153 7.011.3 Iowa 117 in WyomingOxford Junction 01926-01-01192601930-01-011930 Replaced by an extended Iowa 136
Iowa 153 4.82[6]7.76 US 218 near North LibertyUS 6 near Coralville 01930-01-01193001957-01-011957 Replaced by rerouted US 218
Iowa 153 1.02[5]1.64 US 218 near North LibertyNorth Liberty 01957-01-01195701968-01-011968 Now Dubuque Street
Iowa 154 12.8220.63 Iowa 150 near FayetteIowa 3 in Maryville 01926-01-01192601980-11-011980 Replaced by Iowa 187
Iowa 155 7.011.3 CommerceIowa 28 (now 9th Street) in Des Moines 01927-01-01192701931-01-011931 Spur route; now Walnut Woods Drive, Browns Woods Drive, and McKinley Avenue; parts of the road were destroyed
Iowa 155 3.054.91 NodawayUS 34 near Nodaway 01933-01-01193301980-10-011980 Spur route
Iowa 156 4.7487.641 Iowa 5 near MarysvilleBussey 01928-01-01192802003-01-012003 Spur route; section inside Bussey removed 1980
Iowa 157 0.150.24 MonticelloUS 161 near Monticello 01928-01-01192801931-01-011931 Spur route; now Cedar Street; was the shortest state highway at the time
Iowa 157 1.0321.661 US 63 near Lime SpringsLime Springs 01931-01-01193102003-01-012003 Spur route
Iowa 158 0.65[16]1.05 Iowa 60 near CarlisleCarlisle 01929-01-01192901962-01-011962 Spur route
Iowa 159 1.832.95 Iowa 92 near HarperHarper 01929-01-01192901980-01-011980 Spur route
Iowa 160 0.82[8]1.32 Wild Cat Den State ParkUS 61 01930-01-01193001947-01-011947 Renumbered Iowa 389 so Iowa 160 could be reused as a spur of Iowa 60 (this section now Iowa 415)
Iowa 160 2.4463.936 Iowa 415 at AnkenyI-35 at Ankeny 01947-01-011947current extended east from US 69 to I-35 in 1980
Iowa 161 1.15[8]1.85 Iowa 25 in Guthrie CountySpringbrook State Park 01938-01-01193801944-01-011944 Renumbered Iowa 384 so Iowa 161 could be reused as a spur of US 61
Iowa 161 0.47[23]0.76 US 61 in KeokukIllinois state line 01944-01-01194401951-01-011951 Replaced by US 136
Iowa 161 1.2241.970 Iowa 141 at DedhamIowa 141 near Dedham 01951-01-01195102003-01-012003 Former route of Iowa 141
Iowa 162 2.6604.281 Pammel State ParkIowa 92 in Madison County 01930-01-01193001982-01-011982 Park access road; renumbered Iowa 322 to avoid confusion with nearby US 169
Iowa 162 2.03.2 US 18 in Charles CityUS 218 in Charles City 02000-01-01200002006-01-012006 Former section of US 218; became part of relocated US 18
Iowa 163 11.6 Ambrose A. Call State ParkUS 169 near Algona 01930-01-01193001934-01-011934 Park access road; renumbered Iowa 274 when US 163 was designated
Iowa 163 166.270267.586 US 69 in Des MoinesUS 34 at Burlington 01937-01-011937current
Iowa 164 3.79[17]6.10 US 30 in BooneLedges State Park 01930-01-01193001990-01-011990 Park access road
Iowa 165 4.67[21]7.52 Lewis and Clark State ParkUS 75 in Onawa 01930-01-01193001955-01-011955 Park access road; replaced by an extended Iowa 175
Iowa 165 0.4100.660 Abbott Drive at Omaha, Neb.Abbott Drive at Omaha, Neb. 01956-01-011956current Only state highway west of the Missouri River
Iowa 166 0.570.92 HastingsUS 34 near Hastings 01930-01-01193001980-11-011980 Spur route
Iowa 167 3.215.17 DoonUS 75 near Doon 01930-01-01193001980-01-011980 Spur route
Iowa 168 2.704.35 Iowa 83 near MindenShelby 01930-01-01193001980-01-011980 Spur route
Iowa 169 34.8 Elk HornIowa 7 at Kimballton 01930-01-01193001930-01-011930 Spur route; renumbered Iowa 173 when US 169 was created in Iowa
Iowa 170 1.68[22]2.70 EverlyUS 18 near Everly 01930-01-01193001974-01-011974 Spur route
Iowa 171 11.6 Wall Lake State Park (now Big Wall Lake Wildlife Area)US 75 in Onawa 01930-01-01193001935-01-011935 Park access road
Iowa 171 1.051.69 ElberonIowa 21 near Elberon 01935-01-01193501980-01-011980 Spur route
Iowa 172 4.236.81 ElginUS 18 in Clermont 01930-01-01193001980-01-011980 Spur route
Iowa 173 14.68023.625 Iowa 83 near AtlanticIowa 44 at Kimballton 01930-01-011930current Originally a spur route south to Elk Horn; extended in 1980
Iowa 174 3.61[18]5.81 FarragutIowa 2 near Farragut 01930-01-01193001976-01-011976 Spur route
Iowa 175 221.367356.256 N-51 at Decatur, NebUS 63 near Hudson 01930-01-011930current Originally a spur route
Iowa 176 1.21[13]1.95 Iowa 92 near CumberlandCumberland 01930-01-01193001972-01-011972 Spur route
Iowa 177 11.6 CarsonUS 59 near Carson 01930-01-01193001937-01-011937 Spur route; decommissioned when Iowa 100 (now Iowa 92) extended west through Carson
Iowa 177 3.205.15 Iowa 9 near OsageMitchell 01937-01-01193701980-01-011980 Spur route
Iowa 178 0.981.58 Iowa 9 near Little RockLittle Rock 01930-01-01193001980-01-011980 Spur route
Iowa 179 0.821.32 US 69 near KlemmeKlemme 01930-01-01193001980-01-011980 Spur route
Iowa 180 2.463.96 HayesvilleIowa 149 near Hayesville 01930-01-01193001980-01-011980 Spur route
Iowa 181 34.8 RiversideUS 161 near Riverside 01930-01-01193001931-01-011931 Spur route; replaced by an extended Iowa 22
Iowa 181 9.59615.443 Iowa 5 / Iowa 92 near PleasantvilleMelcher-Dallas 01931-01-01193102003-01-012003 Spur route
Iowa 182 11.44[5]18.41 Iowa 9 in LansingMN 26 at New Albin 01930-01-01193001968-12-311968 Renumbered Iowa 26
Iowa 182 9.05114.566 US 18 in InwoodIowa 9 near Larchwood 01969-01-011969current
Iowa 183 29.95248.203 Iowa 127 near MondaminIowa 141 in Ute 01930-01-011930current Continued south to US 6 until 1981, and to Council Bluffs city limits until 2003
Iowa 184 2642 BlocktonUS 34 near Creston 01930-01-01193001932-01-011932 Spur route; replaced by an extended Iowa 25
Iowa 184 15.02624.182 US 275 near RandolphUS 59 near Randolph 01934-01-01193402003-01-012003 Originally a spur route from US 275 to Randolph
Iowa 185 1.51[24]2.43 Iowa 14 near ConradConrad 01934-01-01193401978-01-011978 Spur route
Iowa 186 3.275.26 US 34 near PrescottPrescott 01930-01-01193001980-01-011980 Spur route
Iowa 186 3.375[25]5.432 Green Valley State ParkIowa 25 in Creston 01980-01-01198002001-01-012001 Park access road
Iowa 187 914 Iowa 10 in AltonHospers 01930-01-01193001931-01-011931 Spur route; replaced by Iowa 33
Iowa 187 28.38545.681 US 20 near MasonvilleIowa 150 near Fayette 01931-01-011931current Originally was a park access road to Backbone State Park; moved to current route in 1980
Iowa 188 26[10]42 US 52 / Iowa 10 at LuxemburgUS 161 at Cascade 01930-01-01193001938-01-011938 Replaced by an extended Iowa 136
Iowa 188 1321 US 71 at AuburnIowa 17 near Lake City 01938-01-01193801940-01-011940 Formerly No. 35 and Iowa 151; replaced by an extended Iowa 175
Iowa 188 24.23138.996 Iowa 3 near ClarksvilleUS 63 near Tripoli 01945-01-011945current
Iowa 189 1.001.61 BridgewaterIowa 92 north or Bridgwater 01930-01-01193001980-01-011980 Spur route
Iowa 190 1016 AshtonIowa 9 in Sibley 01930-01-01193001931-01-011931 Spur route; replaced by Iowa 33
Iowa 190 7.4612.01 FairbankIowa 150 near Oelwein 01931-01-01193101980-01-011980 Replaced by Iowa 281
Iowa 191 22.79036.677 I-680 near NeolaIowa 37 at Earling 01930-01-011930current continued south to US 6 until 1981, and to Council Bluffs city limits until 2003
Iowa 192 1016 US 75 in SloanIowa 141 near Hornick 01930-01-01193001931-01-011931 Became part of an extended Iowa 140
Iowa 192 5.0908.192 I-29 / I-80 at Council BluffsI-29 at Council Bluffs 01931-01-01193102017-01-012017 Renumbered from Iowa 241; was decommissioned in 1975, but restored in 1980; truncated in 2016
Iowa 193 10.85217.465 US 18 in Fayette CountyIowa 24 in Jackson Junction 01930-01-01193002003-01-012003
Iowa 194 0.86[6]1.38 Iowa 2 in ClarindaClarinda Treatment Center 01930-01-01193001958-01-011958 Hospital access road
Iowa 195 3[10]4.8 US 69 in JewellEllsworth 01930-01-01193001935-01-011935 Spur route; became part of an extended Iowa 175
Iowa 195 2.8964.661 Iowa 4 near PloverPlover 01935-01-01193502003-01-012003 Spur route
Iowa 196 11.6 US 20 near WilliamsWilliams 01930-01-01193001932-01-011932 Was proposed to replace part of US 20, which was to be shifted south, but the plan to relocate US 20 was abandoned in 1932
Iowa 196 10.13616.312 US 71 / Iowa 175 near Lake ViewUS 20 near Sac City 01935-01-01193502015-01-012015
Iowa 197 7[10]11 StratfordIowa 60 near Stanhope 01930-01-01193001937-01-011937 Spur route; became part of an extended Iowa 175
Iowa 197 2.5674.131 Iowa 3 near Albert CityAlbert City 01937-01-01193702003-01-012003 Spur route
Iowa 198 2.2313.590 GarrisonUS 218 near Garrison 01930-01-01193002003-01-012003 Spur route; section in Garrison removed 1980
Iowa 199 2.6664.291 Van HorneUS 218 near Van Horne 01930-01-01193002003-01-012003 Spur route; section in Van Horne removed 1980
Iowa 200 2.1633.481 US 30 near KeystoneKeystone 01930-01-01193002003-01-012003 Spur route; section in Keystone removed 1980
Iowa 201 4.7557.652 NorwayUS 30 / US 218 near Atkins 01930-01-01193002003-01-012003 Spur route
Iowa 202 8.13[5]13.08 US 218Shellsburg 01930-01-01193001967-01-011967 Spur route
Iowa 202 10.46116.835 Route 202 at Coatsville, MoIowa 2 near Moulton 01969-01-011969current Formerly Iowa 142
Iowa 203 8.7814.13 TerrilIowa 9 01930-01-01193001980-01-011980 Spur route
Iowa 204 5.4078.702 Iowa 2 near Garden GroveGarden Grove 01930-01-01193002003-01-012003 Spur route
Iowa 205 2.9274.711 US 65 near MiloMilo 01930-01-01193002003-01-012003 Spur route
Iowa 206 6.22110.012 US 65 near Liberty CenterLiberty Center 01930-01-01193002003-01-012003 Spur route
Iowa 207 3.0584.921 I-35 near New VirginiaNew Virginia 01930-01-01193002003-01-012003 Spur route
Iowa 208 1423 US 20Backbone State Park 01930-01-01193001931-01-011931 Park access road; renumbered Iowa 187
Iowa 208 11.83[22]19.04 Iowa 2Blanchard 01931-01-01193101974-01-011974 Spur route
Iowa 209 0.66[18]1.06 Iowa 149 near ConroyConroy 01931-01-01193101976-01-011976 Spur route
Iowa 210 34.78155.975 Iowa 141 near WoodwardUS 65 near Collins 01931-01-011931current Originally a double spur route from Slater to Maxwell; extended in 1980
Iowa 211 1.632.62 CambridgeIowa 210 near Cambridge 01931-01-01193101980-01-011980 Spur route
Iowa 212 2032 Iowa 8 in DysartUS 30 in Belle Plaine 01931-01-01193101933-01-011933 Replaced by an extended Iowa 73, which was renumbered Iowa 212 9 months later; this portion became part of Iowa 21 a month later
Iowa 212 12.15719.565 Iowa 21 near Belle PlaineUS 6 at Marengo 01934-01-011934current continued northwest to US 30 from 1937 to 1980
Iowa 213 3.725.99 BlakesburgUS 34 north of Blakesburg 01931-01-01193101980-12-011980 Spur route
Iowa 214 5.7369.231 Iowa 175 near IvesterWellsburg 01931-01-01193102003-01-012003 Spur route
Iowa 215 8.73814.062 UnionIowa 175 in Eldora 01931-01-01193102003-01-012003 Spur route
Iowa 216 1.70[15]2.74 Iowa 5Exline 01931-01-01193101981-01-011981 Spur route
Iowa 217 4.96[17]7.98 BredaUS 71 01931-01-01193101989-01-011989 Spur route
Iowa 219 1.532.46 Iowa 9 near Lake ParkLake Park 01931-01-01193101980-12-011980 Spur route
Iowa 220 7.23311.640 US 6 at South AmanaUS 151 at Amana 01931-01-011931current Continued east to East Amana and south to Upper South Amana until 1980
Iowa 221 11[10]18 US 71 near Albert CityAlbert City 01931-01-01193101937-01-011937 Spur route
Iowa 221 42.61[8]68.57 Iowa 5 near CherokeeIowa 17 / Iowa 10 at Pocahontas 01937-01-01193701945-01-011945 Extended in both directions and renumbered Iowa 3
Iowa 221 3.9096.291 I-35 near Story CityRoland 01947-01-01194702003-01-012003 Spur route; section from I-35 to US 69 removed 1980
Iowa 222 15.1224.33 Iowa 15 near OttosenLivermore 01931-01-01193101980-01-011980 Spur route
Iowa 223 12.22[9]19.67 Iowa 330 near BaxterIowa 14 near Baxter 01931-01-01193101997-01-011997 Originally a spur route; extended west from Baxter in 1980
Iowa 224 10.58717.038 US 6 near KelloggIowa 14 near Laurel 01931-01-011931current Originally a spur route; extended north from Kellogg in 1980
Iowa 225 7.68812.373 SullyIowa 146 in Searsboro 01931-01-01193102003-01-012003 Spur route
Iowa 226 10.7817.35 US 18Titonka 01931-01-01193101980-12-011980 Spur route
Iowa 227 5.39[26]8.67 US 218 near StacyvilleStacyville 01931-01-01193101991-01-011991 Spur route
Iowa 228 0.85[19]1.37 US 6 (this section became County Road F58 in 2003) near WalcottWalcott 01931-01-01193101964-01-011964 Spur route
Iowa 229 5.2338.422 GarwinUS 63 in Tama County 01931-01-01193102003-01-012003 Spur route
Iowa 230 1[10]1.6 Sergeant BluffUS 75 near Sergeant Bluff 01931-01-01193101934-01-011934 Spur route; decommissioned because US 75 was rerouted through Sergeant Bluff, and Iowa 230 was reassigned to the old route of US 75; part later restored as Iowa 378 in 1942
Iowa 230 8.60[19]13.84 US 75 near Sergeant BluffUS 75 in Sioux City 01934-01-01193401965-01-011965 Spur route
Iowa 231 1.83[15]2.95 Iowa 10 near IretonIreton 01931-01-01193101981-01-011981 Spur route
Iowa 231 4.0686.547 US 34 west of New LondonUS 34 east of New London 02000-01-01200002003-01-012003 Former section of US 34
Iowa 232 1.993.20 EarlhamI-80 near Earlham 01931-01-01193101980-01-011980 Spur route
Iowa 233 5.30[17]8.53 AlbionIowa 14 near Rhodes 01931-01-01193101989-01-011989 Spur route; became part of relocated Iowa 330
Iowa 234 6.72[17]10.81 US 30 in State CenterIowa 330 near Rhodes 01931-01-01193101994-01-011994 Originally a spur route; only the section north of CR E63 remained after 1989
Iowa 235 34.8 Iowa 234 near RhodesRhodes 01931-01-01193101935-01-011935 Spur route
Iowa 235 1.24[5]2.00 RhodesIowa 234 near Rhodes 01935-01-01193501966-01-011966 Spur route; renumbered Iowa 245 when I-235 was designated
Iowa 236 1.18[20]1.90 TempletonUS 71 / Iowa 141 near Templeton 01931-01-01193101987-01-011987 Spur route
Iowa 237 1.412.27 Iowa 9 near OcheyedanOcheyedan 01931-01-01193101981-01-011981 Spur route; section in Ocheyedan removed in 1980
Iowa 238 1.0631.711 Iowa 9 near HarrisHarris 01931-01-01193102003-01-012003 Spur route; was decommissioned in 1981, but was restored in 1987
Iowa 239 0.5100.821 Waubonsie State ParkIowa 2 in Fremont County 01931-01-01193102003-01-012003 Park access road
Iowa 240 6.38910.282 RoyalUS 71 in Clay County 01931-01-01193102003-01-012003 Spur route
Iowa 241 58.0 US 34 / US 275 at Council BluffsUS 34 / US 275 01931-01-01193101931-01-011931 Renumbered Iowa 192
Iowa 241 0.991.59 ReadlynIowa 3 near Readlyn 01931-01-01193101980-01-011980 Spur route
Iowa 242 5.8559.423 US 34 in Mills CountySilver City 01931-01-01193102003-01-012003 Spur route
Iowa 243 7.9712.83 Iowa 140 near KingsleyPierson 01931-01-01193101980-01-011980 Spur route
Iowa 243 0.5590.900 Black Hawk Lake State ParkUS 71 / Iowa 175 near Wall Lake 01980-01-01198002003-01-012003 Park access road
Iowa 244 1.963.15 HendersonUS 59 01931-01-01193101980-01-011980 Spur route
Iowa 244 0.7711.241 I-80 near NeolaIowa 191 in Neola 01980-01-01198002003-01-012003
Iowa 245 1.54[16]2.48 Iowa 9 near EsthervilleFort Defiance State Park 01931-01-01193101961-01-011961 Park access road
Iowa 245 1.24[17]2.00 RhodesIowa 234 near Rhodes 01966-01-01196601990-01-011990 Spur route; portion outside of Rhodes removed in 1989
Iowa 246 3.265.25 US 61 in ZwingleLa Motte 01931-01-01193101981-01-011981 Spur route; section outside La Motte deleted in 1980
Iowa 247 0.68[19]1.09 ChelseaIowa 212 near Chelsea 01931-01-01193101963-01-011963 Spur route
Iowa 248 0.540.87 Independence State HospitalUS 20 in Independence 01931-01-01193101980-01-011980 Hospital access road
Iowa 249 0.6651.070 Iowa 78 near WinfieldWinfield 01931-01-01193102003-01-012003 Spur route
Iowa 250 0.590.95 LakotaUS 169 / Iowa 9 near Lakota 01932-01-01193201980-01-011980 Spur route
Iowa 251 1.712.75 St. CharlesI-35 near St. Charles 01932-01-01193201980-01-011980 Spur route
Iowa 252 0.5840.940 US 61 / Iowa 92 near GrandviewGrandview 01932-01-01193202003-01-012003 Spur route
Iowa 253 0.9321.500 Iowa 14 near WilliamsonWilliamson 01932-01-01193202003-01-012003 Spur route
Iowa 254 0.45[5]0.72 Iowa 92 at MassenaMassena 01932-01-01193201968-12-311968 Spur route; renumbered Iowa 322
Iowa 254 7.9112.73 Iowa 9 near Buffalo CenterMN 254 near Rake 01969-01-01196901980-01-011980 Spur route; formerly Iowa 322
Iowa 254 2.74.3 dead end northwest of Nashuadead end southeast of Nashua 02003-01-01200302004-01-012004 Former section of US 218
Iowa 255 2.263.64 OrchardUS 218 near Orchard 01932-01-01193201980-01-011980 Spur route
Iowa 256 0.801.29 Iowa 17 near CorwithCorwith 01932-01-01193201980-01-011980 Spur route
Iowa 257 0.58[16]0.93 US 18 near DickensDickens 01933-01-01193301960-01-011960 Spur route
Iowa 258 1.9893.201 I-35 near Van WertUS 69 near Van Wert 01933-01-01193302003-01-012003 Originally a spur route
Iowa 259 1.0011.611 US 169 near TingleyTingley 01933-01-01193302003-01-012003 Spur route; section in Tingley removed 1980
Iowa 260 2.12[24]3.41 Shannon CityUS 169 near Shannon City 01933-01-01193301977-01-011977 Spur route
Iowa 261 33.02[16]53.14 Iowa 1 in Iowa CityUS 151 01930-01-01193001962-01-011962 Numbered as a branch of US 161; replaced by relocated Iowa 1
Iowa 262 1.993.20 US 69 near GaltGalt 01933-01-01193301980-01-011980 Spur route
Iowa 263 2.143.44 CoulterLatimer 01933-01-01193301980-01-011980 Double spur route with Iowa 3
Iowa 263 12.51120.135 Iowa 14 in Grundy CountyUS 20 near Cedar Falls 02000-01-01200002003-01-012003 Former section of US 20
Iowa 264 2.393.85 Linn GroveIowa 10 near Linn Grove 01933-01-01193301980-01-011980 Spur route
Iowa 265 2.08[16]3.35 KentUS 34 near Kent 01934-01-01193401961-01-011961 Spur route
Iowa 266 1.7092.750 US 69 near WeldonWeldon 01934-01-01193402003-01-012003 Spur route; section in Weldon removed 1980
Iowa 267 1.191.92 Iowa 93 near RandaliaRandalia 01934-01-01193401980-01-011980 Spur route
Iowa 268 6.29[13]10.12 US 59 near IrwinIrwin 01934-01-01193401971-01-011971 Spur route; became part of an extended Iowa 37
Iowa 269 3.014.84 Iowa 16 near StockportStockport 01934-01-01193401980-01-011980 Spur route
Iowa 270 1.802.90 Iowa 16 near HillsboroHillsboro 01934-01-01193401980-01-011980 Spur route
Iowa 271 7[10]11 MarneUS 71 in Atlantic 01934-01-01193401935-01-011935 Spur route; replaced by an extended Iowa 83
Iowa 271 0.841.35 Iowa 4 near YaleYale 01935-01-01193501980-01-011980 Spur route
Iowa 272 6.45[26]10.38 ElmaUS 63 near Elma 01934-01-01193401992-01-011992 Spur route; formerly Iowa 52
Iowa 273 10.02516.134 Lake Wapello State ParkUS 63 near Drakesville 01935-01-01193502003-01-012003 Park access road
Iowa 274 1.99[12]3.20 Ambrose A. Call State ParkUS 169 near Algona 01934-01-01193401986-01-011986 Park access road; formerly Iowa 163
Iowa 276 4.7117.582 Spirit Lake city limitsMinnesota state line 01934-01-01193402003-01-012003 Park access road
Iowa 277 6.2410.04 NumaIowa 5 near Centerville 01935-01-01193501980-01-011980 Spur route
Iowa 278 2.053.30 RathbunIowa 5 near Rathbun 01935-01-01193501980-01-011980 Spur route
Iowa 279 1.9833.191 US 30 / US 218 near AtkinsAtkins 01935-01-01193502003-01-012003 Spur route; section in Atkins removed 1980
Iowa 280 2.62[19]4.22 US 30 / US 218 near NewhallNewhall 01935-01-01193501965-01-011965 Spur route; renumbered Iowa 287 when I-280 was designated
Iowa 281 28.16645.329 Waterloo city limitsIowa 150 at Oelwein 01935-01-011935current Originally a spur route east to Dunkerton; extended in 1980
Iowa 282 5.2838.502 QuasquetonIowa 939 near Winthrop 01935-01-01193502003-01-012003 Spur route
Iowa 283 5.8619.432 BrandonIowa 150 near Brandon 01935-01-01193502003-01-012003 Spur route
Iowa 284 5.588.98 AuroraIowa 187 at Lamont 01935-01-01193501980-01-011980 Spur route
Iowa 285 0.7961.281 US 30 in ArcadiaArcadia 01935-01-01193502003-01-012003 Spur route
Iowa 286 9.93215.984 US 30 in GliddenLanesboro 01935-01-01193502003-01-012003 Spur route
Iowa 287 7.52[4]12.10 FarnhamvilleIowa 47 in Farnhamville 01935-01-01193501940-01-011940 Spur route; replaced by an extended Iowa 175
Iowa 287 6.19[19]9.96 BradgateIowa 3 in Gilmore City 01942-01-01194201965-01-011965 Spur route
Iowa 287 1.8332.950 US 30 / US 218 near NewhallNewhall 01965-01-01196502003-01-012003 Spur route; section in Newhall removed 1980
Iowa 288 4.587.37 US 65 near ManlyPlymouth 01935-01-01193501980-01-011980 Spur route
Iowa 289 6.149.88 Alta VistaUS 63 near Lourdes 01935-01-01193501980-01-011980 Spur route
Iowa 289 2.2523.624 US 61 near Fort MadisonUS 61 near Fort Madison 02000-01-01200002003-01-012003 Former section of US 61 southwest of Fort Madison; had two sections
Iowa 290 1.993.20 FarmersburgIowa 13 near Farmersburg 01935-01-01193501980-01-011980 Spur route
Iowa 291 1.011.63 Low MoorUS 30 near Low Moor 01935-01-01193501979-01-011979 Spur route
Iowa 292 3.175.10 LindenIowa 44 01935-01-01193501980-01-011980 Spur route
Iowa 293 1.422.29 Iowa 90 near Van MeterVan Meter 01935-01-01193501980-01-011980 Spur route
Iowa 294 6.1479.893 Iowa 2 in Decatur CountyGrand River 01935-01-01193502003-01-012003 Spur route
Iowa 295 5.098.19 WestgateIowa 150 near Maynard 01935-01-01193501980-01-011980 Spur route
Iowa 296 4.447.15 CR C24 near WadenaIowa 56 near Wadena 01935-01-01193501980-01-011980 Spur route
Iowa 296 0.275[25]0.443 02000-01-01200002011-01-012011 Former section of Iowa 28
Iowa 297 4.25[4]6.84 AlexanderIowa 10 01935-01-01193501939-01-011939 Spur route; replaced by an extended Iowa 107
Iowa 297 3.5435.702 GilbertvilleRaymond 01940-01-01194002003-01-012003 Double spur with I-380
Iowa 298 4.22[5]6.79 Iowa 60 near KamrarKamrar 01935-01-01193501966-01-011966 Spur route; until 1958 went from US 69 to Kamrar
Iowa 299 5.5568.942 New ProvidenceIowa 175 near Eldora 01935-01-01193502003-01-012003 Spur route
Iowa 300 1.4112.271 ModaleI-29 near Modale 01935-01-01193502003-01-012003 Spur route
Iowa 301 2.0453.291 I-29 near Little SiouxLittle Sioux 01935-01-01193502003-01-012003 Spur route
Iowa 302 3.004.83 ThorIowa 3 near Thor 01935-01-01193501980-01-011980 Spur route
Iowa 303 3.51[15]5.65 US 34 near FairfieldLibertyville 01935-01-01193501981-01-011981 Spur route
Iowa 304 1.592.56 Iowa 78 near OllieOllie 01935-01-01193501980-01-011980 Spur route
Iowa 305 2.5544.110 LettsUS 61 / Iowa 92 near Letts 01935-01-01193502003-01-012003 Spur route
Iowa 306 0.7831.260 US 65 near DerbyDerby 01935-01-01193502003-01-012003 Spur route
Iowa 307 5.31[18]8.55 US 169 near East PeruEast Peru 01935-01-01193501975-01-011975 Spur route; decommissioned when US 169 was rerouted south of Winterset
Iowa 308 7.32[5]11.78 US 63 near New SharonBarnes City 01935-01-01193501966-01-011966 Spur route
Iowa 309 2.323.73 BeaconIowa 137 in Oskaloosa 01935-01-01193501980-01-011980 Spur route
Iowa 310 1.68[5]2.70 Iowa 92 near HarveyHarvey 01935-01-01193501966-01-011966 Spur route
Iowa 311 4.73[17]7.61 LiscombIowa 14 near Liscomb 01935-01-01193501989-01-011989 Spur route; section in Liscomb removed 1980
Iowa 312 6.199.96 Iowa 9 near RicevilleMcIntire 01935-01-01193501980-01-011980 Spur route
Iowa 312 0.8831.421 02002-01-01200202003-01-012003 Former section of US 65; had two sections
Iowa 313 1.591[25]2.560 US 59 near MelvinMelvin 01935-01-01193502002-01-012002 Spur route; section in Melvin removed 1980
Iowa 314 6.27710.102 AyrshireUS 18 near Ruthven 01935-01-01193502003-01-012003 Spur route
Iowa 315 4.1586.692 Iowa 4 near PalmerPalmer 01935-01-01193502003-01-012003 Spur route
Iowa 316 5.1838.341 Iowa 5 near SwanRunnells city limits 01935-01-011935current Spur route; continued south to Iowa 163 from 1981 to 2003
Iowa 317 0.711.14 US 65 near ZearingZearing 01935-01-01193501980-01-011980 Spur route; continued west to McCallsburg until 1954
Iowa 318 5.518.87 ClutierIowa 21 near Clutier 01935-01-01193501980-01-011980 Spur route
Iowa 319 0.500.80 GravityIowa 148 at Gravity 01935-01-01193501980-01-011980 Spur route; continued east to Conway until 1961
Iowa 320 4.25[19]6.84 US 169 near BadgerBadger 01935-01-01193501963-01-011963 Spur route
Iowa 321 6.03[19]9.70 ClareIowa 5 near Clare 01935-01-01193501963-01-011963 Spur route
Iowa 322 7.91[11]12.73 Iowa 9 near Buffalo CenterMN 254 near Rake 01935-01-01193501968-12-311968 Spur route; renumbered Iowa 254
Iowa 322 0.45[13]0.72 Iowa 92 at MassenaMassena 01969-01-01196901972-01-011972 Spur route; formerly Iowa 254
Iowa 322 2.6604.281 Pammel State ParkIowa 92 in Madison County 01982-01-01198202003-01-012003 Park access road; formerly Iowa 162
Iowa 323 3.746.02 Iowa 17 near WoolstockWoolstock 01935-01-01193501980-01-011980 Spur route
Iowa 324 0.79[21]1.27 LawtonUS 20 near Lawton 01935-01-01193501954-01-011954 Spur route; decommissioned when US 20 was rerouted closer to Lawton
Iowa 324 0.5100.821 Iowa 175 near OnawaLewis and Clark State Park 01956-01-01195602003-01-012003 Park access road
Iowa 325 3.6175.821 SpillvilleUS 52 near Calmar 01935-01-01193502003-01-012003 Spur route; section in Spillville removed 1980
Iowa 326 2.18[15]3.51 BristowIowa 3 near Bristow 01935-01-01193501981-01-011981 Spur route
Iowa 327 2.0703.331 Iowa 276 in Spirit Lakenear Orleans 01935-01-01193502003-01-012003 Spur route
Iowa 328 2.293.69 US 20 near GalvaGalva 01935-01-01193501980-12-011980 Spur route
Iowa 329 4.857.81 US 169 at BoxholmPilot Mound 01935-01-01193501980-01-011980 Spur route
Iowa 330 2.31[8]3.72 IoniaUS 18 near Ionia 01935-01-01193501948-01-011948 Spur route; renumbered Iowa 393 so Iowa 330 could be reused as a spur of US 30
Iowa 330 47.74876.843 I-80 / US 6 / US 65 at AltoonaIowa 14 near Albion 01948-01-011948current Originally went from US 30 to Marshalltown; extended west in 1969 and was relocated to bypass Marshalltown in 1989
Iowa 331 1.83[5]2.95 EldridgeUS 61 near Eldridge 01935-01-01193501967-01-011967 Spur route
Iowa 331 3.8016.117 Dead end near I-35 in Des MoinesIowa 28 in Des Moines 02002-01-01200202005-01-012005 Former section of Iowa 5
Iowa 332 1.001.61 Pilot Knob State ParkIowa 9 near Forest City 01935-01-01193501980-01-011980 Park access road
Iowa 333 1.5582.507 I-29 at HamburgUS 275 in Hamburg 01935-01-011935current Originally a spur route; section from county line to US 71 removed 1980; reassigned to current route that year, but section from US 275 to US 59 removed 2003
Iowa 334 1.873.01 US 63 near FrederikaFrederika 01935-01-01193501980-01-011980 Spur route
Iowa 334 6.600[27]10.622 02006-01-01200602007-01-012007 Former section of US 34
Iowa 335 0.641.03 Iowa 141 near DawsonDawson 01935-01-01193501980-01-011980 Spur route
Iowa 335 1.536[25]2.472 Iowa 163 in OtleyIowa 163 in Otley 01999-01-01199902001-01-012001 Former section of Iowa 163
Iowa 336 2.483.99 Iowa 150 near RowleyRowley 01936-01-01193601980-01-011980 Spur route
Iowa 337 3.365.41 Iowa 9 near GraftonGrafton 01936-01-01193601980-01-011980 Spur route
Iowa 337 2.764[25]4.448 US 218 in Charles CityUS 18 in Charles City 02000-01-01200002001-01-012001 Former section of US 218
Iowa 337 1.085[28]1.746 US 151 in LangworthyUS 151 in Langworthy 02003-01-01200302004-01-012004 Former section of US 151
Iowa 338 1.02[13]1.64 BondurantUS 65 01936-01-01193601972-01-011972 Spur route
Iowa 339 6.15[29]9.90 GeorgeIowa 9 near George 01936-01-01193602000-01-012000 Spur route
Iowa 340 2.2313.590 Pikes Peak State ParkIowa 76 in McGregor 01936-01-01193602003-01-012003 Park access road
Iowa 340 1.160[27]1.867 Dead end in BataviaUS 34 in Batavia 02005-01-01200502007-01-012007 Former section of US 34
Iowa 341 2.10[20]3.38 Lost Island ParkUS 18 near Ruthven 01936-01-01193601988-01-011988 Park access road
Iowa 341 0.0620.100 RuthvenUS 18 near Ruthven 01993-01-01199302003-01-012003 Spur route; restoration of part of the previous Iowa 341
Iowa 342 0.951.53 Iowa 141 near JamaicaJamaica 01936-01-01193601980-01-011980 Spur route
Iowa 342 2.23.5 Dead end north of EddyvilleIowa 137 in Eddyville 02004-01-01200402005-01-012005 Former section of US 63
Iowa 343 1.011.63 Iowa 333 near NorthboroNorthboro 01937-01-01193701980-01-011980 Spur route
Iowa 344 7.06[8]11.36 Iowa 2 in BedfordIowa 319 near Conway 01937-01-01193701943-01-011943 Park access road; became part of an extended Iowa 49
Iowa 344 1.075[25]1.730 State fish hatcheryUS 169 near Mount Ayr 01943-01-01194302001-01-012001 Fish hatchery access road
Iowa 345 0.42[16]0.68 Iowa 17 near GraettingerGraettinger 01937-01-01193701960-01-011960 Spur route
Iowa 346 12.47020.069 US 218 / Iowa 27 at NashuaUS 18 / US 63 near New Hampton 01937-01-011937current
Iowa 347 1.08[12]1.74 Locust Street at Omaha, Neb.Locust Street at Omaha, Neb. 01937-01-01193701986-01-011986
Iowa 348 0.88[5]1.42 Iowa 347Carter Lake 01937-01-01193701967-01-011967
Iowa 349 1.0321.661 Lake Ahquabi State ParkUS 65 / US 69 near Indianola 01938-01-01193802003-01-012003 Park access road
Iowa 350 2.55[6]4.10 US 6 near DavenportIowa 122 in Davenport 01938-01-01193801958-01-011958 Now Hickory Grove Road
Iowa 351 0.861.38 RembrandtUS 71 near Rembrandt 01938-01-01193801981-01-011981 Spur route; section in Rembrandt removed 1980
Iowa 352 0.751.21 TruesdaleUS 71 near Truesdale 01938-01-01193801981-01-011981 Spur route; section in Truesdale removed 1980
Iowa 353 0.350.56 RowanIowa 3 at Rowan 01938-01-01193801980-01-011980 Spur route
Iowa 354 0.35[16]0.56 MallardIowa 17 near Mallard 01938-01-01193801960-01-011960 Spur route
Iowa 355 0.33[16]0.53 Iowa 175 near RadcliffeRadcliffe 01938-01-01193801961-01-011961 Spur route
Iowa 356 6.37[15]10.25 PackwoodIowa 1 near Packwood 01938-01-01193801981-01-011981 Spur route; section in Packwood removed 1980
Iowa 356 0.9491.527 MilfordWest Okoboji 02000-01-01200002003-01-012003 Former section of US 71
Iowa 357 0.59[19]0.95 BlocktonIowa 25 near Blockton 01938-01-01193801964-01-011964 Spur route
Iowa 358 1.552.49 WhittemoreUS 18 / Iowa 15 near Whittemore 01938-01-01193801980-01-011980 Spur route
Iowa 359 7.38311.882 BuckeyeIowa 941 in Alden 01938-01-01193802003-01-012003 Spur route
Iowa 360 0.64[19]1.03 Iowa 5 near NewellNewell 01938-01-01193801964-01-011964 Spur route
Iowa 361 0.38[16]0.61 BayardIowa 25 near Bayard 01938-01-01193801962-01-011962 Spur route
Iowa 362 1.171.88 MacedoniaUS 59 near Macedonia 01938-01-01193801980-01-011980 Spur route
Iowa 362 5.4698.802 DeSoto National Wildlife RefugeI-29 at Loveland 01980-01-01198002003-01-012003 Park access road
Iowa 363 1.6162.601 Iowa 150 near UrbanaI-380 / Iowa 27 in Urbana 01939-01-01193902003-01-012003 Spur route; formerly Iowa 92; rerouted to end at I-380 in 1984
Iowa 364 6.1409.881 Iowa 76 near Waukon JunctionHarpers Ferry 01938-01-01193802003-01-012003 Spur route; section north of the bridge in Harpers Ferry removed 1980
Iowa 365 1.071.72 TracyIowa 964 near Tracy 01939-01-01193901980-11-011980 Spur route; did not extend to relocated Iowa 92 when Iowa 92 was rerouted in 1978
Iowa 366 0.51[19]0.82 US 75 near BlencoeBlencoe 01939-01-01193901964-01-011964 Spur route
Iowa 367 69.7 Nebraska borderUS 275 in Council Bluffs 01939-01-01193901941-01-011941 Replaced by US 275
Iowa 367 3.395.46 RutlandUS 169 near Humboldt 01942-01-01194201980-01-011980 Spur route
Iowa 368 0.50[19]0.80 RenwickIowa 60 near Renwick 01939-01-01193901964-01-011964 Spur route
Iowa 368 0.1400.225 200th Avenue northwest of HartfordDead end 02002-01-012002current Former section of Iowa 5
Iowa 369 23.2 Iowa 92 near KnoxvilleCoal mine 01939-01-01193901941-01-011941 Now County Road T17
Iowa 369 5.548.92 Iowa 2 near MoultonUnionville 01942-01-01194201980-01-011980 Spur route
Iowa 370 0.460.74 Iowa 57Dike 01939-01-01193901952-01-011952 Spur route
Iowa 370 3.2655.255 N-370 at Bellevue, Neb.I-29 / US 275 near Council Bluffs 01953-01-01195302014-01-012014 Originally ended at US 275 (pre-2003 route); decommissioned in 1980, but restored west of I-29 in 1983
Iowa 371 0.7151.151 Lake Keomah State ParkIowa 92 near Keomah Village 01939-01-01193902003-01-012003 Park access road
Iowa 372 2.60[5]4.18 Preparation Canyon State ParkIowa 183 near Moorhead 01939-01-01193901968-01-011968 Park access road
Iowa 373 4.05[19]6.52 Iowa 13 near WatervilleWaterville 01942-01-01194201964-01-011964 Spur route
Iowa 373 2.3073.713 02002-01-01200202003-01-012003 Former section of US 61 just southwest of Muscatine
Iowa 374 7.9912.86 US 71 near Sioux RapidsWebb 01942-01-01194201980-01-011980 Spur route
Iowa 374 3.6[30]5.8 Iowa 163 in MonroeDead end in Monroe 02000-01-01200002000-01-012000 Former section of Iowa 163
Iowa 375 2.95[13]4.75 US 6 in Council BluffsUS 275 / Iowa 92 in Council Bluffs 01941-01-01194101971-01-011971 Now 4th Street, 9th Avenue, 3rd Street, and Harry Langdon Boulevard
Iowa 376 0.46[5]0.74 Iowa 3 near ColesburgColesburg 01942-01-01194201965-01-011965 Spur route
Iowa 376 10.33416.631 I-129 / US 20 / US 75 at Sioux CityUS 75 at Sioux City 02001-01-012001current US 75 Business in Sioux City
Iowa 377 0.550.89 Harbor Drive in Sioux CityIowa 970 in Sergeant Bluff 01942-01-01194201980-01-011980 Airport access road
Iowa 378 2.13[22]3.43 Harbor Drive in Sioux CityIowa 475 (later Iowa 970) in Sergeant Bluff 01942-01-01194201974-01-011974 Airport access road
Iowa 379 4.597.39 JoiceIowa 105 near Lake Mills 01942-01-01194201980-01-011980 Spur route
Iowa 380 1.30[11]2.09 Ottumwa Regional AirportUS 63 near Ottumwa 01943-01-01194301969-01-011969 Renumbered Iowa 389 when I-380 was designated
Iowa 381 1.10[23]1.77 Iowa 84 near Cedar RapidsUS 218 (now Club Road) near Cedar Rapids 01943-01-01194301953-01-011953 Airport access road; now Wright Brothers Boulevard
Iowa 381 0.671.08 Iowa 254 near RakeRake 01954-01-01195401980-01-011980 Spur route
Iowa 382 4.7927.712 Lake MacBride State ParkIowa 1 in Solon 01943-01-01194302003-01-012003 Park access road
Iowa 383 1.3112.110 US 69 near RandallRandall 01944-01-01194402003-01-012003 Spur route
Iowa 384 1.2311.981 Iowa 25 in Guthrie CountySpringbrook State Park 01944-01-01194402003-01-012003 Park access road
Iowa 385 3.1515.071 Pacific JunctionUS 34 / US 275 in Glenwood 01945-01-01194502003-01-012003 Spur route
Iowa 386 2.6854.321 US 52 / Iowa 3 near SagevilleUS 52 / Iowa 3 / Iowa 32 near Dubuque 01946-01-01194602003-01-012003
Iowa 387 1.04[31]1.67 US 65 near ZearingZearing 01946-01-01194601950-01-011950 Spur route; replaced by an extended Iowa 317
Iowa 387 0.520.84 Davenport Municipal AirportUS 61 3 miles north of Davenport 01951-01-01195101979-01-011979 Airport access road
Iowa 388 0.350.56 CalumetUS 59 at Calumet 01946-01-01194601980-01-011980 Spur route
Iowa 389 0.82[16]1.32 Wild Cat Den State ParkIowa 22 01946-01-01194601962-01-011962 Park access road
Iowa 389 1.25[9]2.01 Ottumwa Regional AirportUS 63 near Ottumwa 01969-01-01196901997-01-011997 Decommissioned when the first section of Ottumwa bypass opened
Iowa 390 0.74[7]1.19 MarathonIowa 10 near Marathon 01946-01-01194601980-01-011980 Spur route
Iowa 390 2.1133.401 South of PlainfieldNorth of Plainfield 02002-01-01200202003-01-012003 Former section of US 218
Iowa 391 0.50[13]0.80 Clinton Municipal AirportUS 30 near Clinton 01946-01-01194601972-01-011972 Airport access road; now 60th Street
Iowa 392 0.63[22]1.01 Dubuque Regional AirportUS 61 near Dubuque 01946-01-01194601974-01-011974 Airport access road; now Airport Road
Iowa 392 3.09[29]4.97 Iowa 163 in Prairie CityIowa 163 in Prairie City 01998-01-01199802000-01-012000 Former section of Iowa 163
Iowa 393 2.403.86 IoniaUS 18 near Ionia 01948-01-01194801980-01-011980 Spur route
Iowa 394 2.273.65 Iowa 2 near DenmarkIowa Army Ammunition Plant southern entrance 01948-01-01194801980-01-011980 Spur route
Iowa 394 10.45416.824 Route B at St. Francisville, Mo.US 218 near Donnellson 01980-01-01198002005-01-012005 Replaced by Iowa 27
Iowa 395 0.530.85 Iowa 330 near MelbourneMelbourne 01948-01-01194801983-01-011983 Spur route; section in Melbourne removed 1980
Iowa 396 0.89[21]1.43 Iowa 14 in NewtonUS 6 in Newton 01948-01-01194801954-01-011954 Now 19th Avenue and 8th Street
Iowa 396 0.520.84 Iowa 175 near FarnhamvilleFarnhamville 01954-01-01195401980-01-011980 Spur route
Iowa 397 0.69[17]1.11 PatonIowa 144 near Paton 01948-01-01194801991-01-011991 Spur route
Iowa 398 1.242.00 BrooklynUS 6 near Brooklyn 01956-01-01195601980-01-011980 Spur route
Iowa 399 0.65[19]1.05 Iowa 74 near PaloPalo 01956-01-01195601964-01-011964 Spur route
Iowa 400 4.547.31 TruroI-35 near Truro 01957-01-01195701980-01-011980 Spur route; not completed until 1958
Iowa 401 5.32[17]8.56 Camp DodgeUS 6 in Des Moines 01958-01-01195801991-01-011991 Replaced by an extended Iowa 28 south of I-80; rest decommissioned
Iowa 402 20.933.6 Iowa 8 near DysartIowa 412 in Waterloo 01957-01-01195701968-12-311968 Replaced by Iowa 21
Iowa 403 0.701.13 CushingUS 20 near Cushing 01958-01-01195801980-01-011980 Spur route
Iowa 403 0.4770.768 SD 48 near AkronIowa 12 in Akron 01980-01-01198002003-01-012003
Iowa 404 1.3912.239 MontroseUS 61 near Montrose 01960-01-01196002003-01-012003 Spur route
Iowa 404 1.6292.622 Iowa 3 in Le MarsUS 75 at Le Mars 02006-01-012006current Section of US 75 Business in Le Mars
Iowa 405 0.2490.401 Lone TreeIowa 22 near Lone Tree 01958-01-01195802003-01-012003 Spur route; section in Lone Tree removed 1980
Iowa 406 2.2753.661 US 34 near West BurlingtonBurlington 01957-01-01195702003-01-012003 Formerly Iowa 80; spur route
Iowa 407 0.47[5]0.76 Iowa 99 in OakvilleOakville 01957-01-01195701967-01-011967 Formerly Iowa 7; spur route
Iowa 408 7.4011.91 US 169 near Lu VerneLu Verne 01957-01-01195701980-01-011980 Spur route
Iowa 409 0.41[5]0.66 US 18 near GarnerGarner 01957-01-01195701968-01-011968 Formerly Iowa 35; spur route
Iowa 410 2.1573.471 Backbone State ParkIowa 3 / Iowa 13 near Strawberry Point 01958-01-01195802003-01-012003 Park access road
Iowa 411 0.98[19]1.58 US 6 at MarengoCR F15 north of Marengo 01957-01-01195701964-01-011964 Spur route
Iowa 412 4.72[14]7.60 US 63 in WaterlooUS 218 in Waterloo 01960-01-01196001983-01-011983 San Marnan Drive in Waterloo
Iowa 413 3.95[19]6.36 US 20 in Fort DodgeFort Dodge Airport 01960-01-01196001980-01-011980 Spur route; continued north to Iowa 320 near Badger until Iowa 320 was decommissioned
Iowa 414 6.12[13]9.85 US 6 near LewisUS 71 near Atlantic 01958-01-01195801972-01-011972 Former section of Iowa 92; was Iowa 100 for a month in 1958
Iowa 415 16.85727.129 US 6 in Des MoinesIowa 141 near Granger 01959-01-011959current
Iowa 416 4.89[11]7.87 CentraliaUS 20 01959-01-01195901969-01-011969 Former section of US 20; sections were renumbered Iowa 418 and Iowa 420 in 1960
Iowa 417 5.38[5]8.66 US 67 near RiverdaleUS 67 near LeClaire 01960-01-01196001968-01-011968 Former section of US 67
Iowa 418 0.85[5]1.37 FarleyUS 20 01960-01-01196001968-01-011968 Former section of US 20
Iowa 419 1.0381.670 VictorUS 6 / Iowa 21 near Victor 01962-01-01196202003-01-012003 Spur route
Iowa 420 2.37[11]3.81 Iowa 136 in DyersvilleUS 20 01960-01-01196001969-01-011969 Former section of US 20
Iowa 421 3.2605.246 02000-01-01200002003-01-012003 Former section of US 61 northeast of Muscatine
Iowa 422 0.52[18]0.84 US 169 near BurtBurt 01964-01-01196401976-01-011976 Spur route; renumbered Iowa 969
Iowa 424 0.440.71 Iowa 111 in BrittUS 18 near Britt 01961-01-01196101980-01-011980 Spur route
Iowa 424 2.8024.509 South of SwedesburgUS 218 near Olds 01999-01-01199902003-01-012003 Former section of US 218
Iowa 426 0.520.84 Iowa 92 near Rose HillRose Hill 01960-01-01196001980-01-011980 Former section of Iowa 92
Iowa 428 1.211.95 AnamosaUS 151 near Anamosa 01965-01-01196501980-01-011980 Spur route
Iowa 428 6.1409.881 Maquoketa Caves State ParkUS 61 near Maquoketa 01980-01-01198002003-01-012003 Park access road
Iowa 431 3.183[25]5.123 US 218 near WaverlyIowa 3 in Waverly 01998-01-01199802001-01-012001 Section of US 218 Business in Waverly
Iowa 431 1.920[32]3.090 US 30 near Le Grand 02004-01-01200402014-01-012014 Former section of US 30
Iowa 432 1.93.1 Iowa 163 in OskaloosaIowa 92 in Oskaloosa 01998-01-01199802003-01-012003 Former section of Iowa 163
Iowa 434 8.993[27]14.473 US 34 in DanvilleUS 34 in West Burlington 02005-01-01200502008-01-012008 Former section of US 34
Iowa 437 0.299[33]0.481 Dead end near Iowa 137 in EddyvilleDead end near Iowa 342 in Eddyville 02005-01-01200502008-01-012008 Former section of Iowa 137; abandoned road
Iowa 438 1.0521.693 US 34 / Iowa 163 at Mount PleasantUS 218 / Iowa 27 at Mount Pleasant 02003-01-012003current Section of US 218 Business in Mount Pleasant
Iowa 450 0.2680.431 Iowa 10 at AltonIowa 60 at Alton 02005-01-012005current 450th Street
Iowa 460 7.240[27]11.652 02004-01-01200402007-01-012007 Former sections of US 218 and Iowa 394 in Donnellson and Argyle
Iowa 461 10.75017.300 I-280 / US 61 at DavenportI-80 / US 61 at Davenport 02010-01-012010current US 61 Business in Davenport
Iowa 463 2.33.7 US 63 near FrederikaUS 63 near Frederika 02009-01-01200902010-01-012010 Former section of US 63
Iowa 470 0.6951.118 US 75 in Merrill 02011-01-012011current Former section of US 75
Iowa 471 11.16017.960 Iowa 175 near Lake ViewUS 20 / US 71 near Early 02015-01-012015current Formerly US 71 in Sac County
Iowa 475 31.79[34]51.16 Business US 75 in Sioux CityIowa 175 in Onawa 01969-01-01196901976-01-011976 Former section of US 75; renumbered Iowa 970
Iowa 478 0.7551.215 Iowa 24 in New HamptonNorth of New Hampton 02002-01-01200202003-01-012003 Former section of US 63
Iowa 903 0.130.21 Just south of Iowa 163 near Leighton 02011-01-012011current Former section of Iowa 163
Iowa 904 4.7377.623 US 34 / Iowa 163 west of FairfieldUS 34 / Iowa 163 east of Fairfield 02008-01-01200802011-01-012011 US 34 Business at Fairfield, did not count mileage within Fairfield city limits
Iowa 906 4.0096.452 Iowa 192 in Council BluffsI-80 / US 6 near Council Bluffs 02016-01-01201602023-01-012023 Formerly US 6 through Council Bluffs
Iowa 912 0.22[29]0.35 01997-01-01199701999-01-011999 Former section of Iowa 141
Iowa 913 1.686[9]2.713 01996-01-01199601997-01-011997 Former section of US 61
Iowa 914 1.01[25]1.63 Storm Lake city limit boundaryIowa 7 in Storm Lake 01996-01-01199602001-01-012001 Former section of US 71
Iowa 915 .27[17]0.43 Iowa 3 / Iowa 150 in OelweinIowa 3 / Iowa 150 in Oelwein 01986-01-01198601990-01-011990 Former section of Iowa 3/Iowa 150 concurrency
Iowa 915 3.7[35]6.0 01993-01-01199301994-01-011994 Former section of Iowa 415 in Ankeny
Iowa 915 .580[9]0.933 Iowa 5 in AlbiaIowa 5 in Albia 01995-01-01199501997-01-011997 Former section of Iowa 5
Iowa 916 1.2932.081 Iowa 281 in OelweinOelwein city limits 01986-01-01198602003-01-012003 Originally ended at Iowa 915 in Oelwein; former section of Iowa 150
Iowa 917 0.1490.240 US 61 and Iowa 22 near MuscatineMuscatine city limits 01986-01-01198602003-01-012003 Former section of Iowa 22
Iowa 918 1.1191.801 Iowa 16 near EldonIowa 16 in Eldon 01984-01-01198402003-01-012003 Former section of Iowa 16; street signs said "Hwy 918"
Iowa 919 0.39[36]0.63 Iowa 363 in UrbanaWalnut Street in Urbana 01984-01-01198401995-01-011995 Former section of Iowa 363; now Ash Street and Wood Street
Iowa 920 12.56020.213 Center PointIowa 150 near Urbana 01984-01-01198402003-01-012003 Former section of Iowa 150
Iowa 921 11.75[12]18.91 Iowa 920 in Center PointHiawatha 01984-01-01198401985-01-011985 Former section of Iowa 150
Iowa 921 2.5054.031 US 6 / Iowa 1 in Iowa CityUS 218 in Iowa City 01985-01-01198502003-01-012003 Former section of US 218
Iowa 922 1.27[12]2.04 US 61 in MuscatineIowa 22 in Muscatine 01984-01-01198401986-01-011986 Former section of US 61; became part of an extended Iowa 38
Iowa 922 1.121.80 Iowa 149 in North Englishunnamed street in North English 01987-01-01198701988-01-011988 Former section of Iowa 149
Iowa 922 8.86214.262 US 151 at Cedar RapidsIowa 100 in Cedar Rapids 01989-01-011989current US 151 Business in Cedar Rapids
Iowa 923 8.81914.193 01982-01-01198202003-01-012003 Former section of US 218; had three sections
Iowa 924 4.00[15]6.44 Iowa 175 near FarnhamvilleWebster–Greene County Line 01980-01-01198001982-01-011982 Now County Road P29
Iowa 924 2.24[26]3.60 US 52 in DubuqueDead end in Dubuque 01983-01-01198301992-01-011992 Former section of US 61/US 151 concurrency
Iowa 924 0.6651.070 US 61 near MontroseDead end in Montrose 01994-01-01199402003-01-012003 Formerly Iowa 998; former section of US 61
Iowa 925 26.25942.260 I-80 / US 6 in AdairUS 6 near Dexter 01980-01-01198002003-01-012003 Former section of US 6
Iowa 926 3.18[20]5.12 US 6Altoona east city limit boundary 01980-01-01198001988-01-011988 Former section of US 6; originally continued east to Newton
Iowa 926 3.1475.065 US 169 / US 20 Bus at Fort DodgeUS 169 at Fort Dodge 01990-01-01199002014-01-012014
Iowa 927 19.01730.605 US 6 / Iowa 38 in WiltonI-280 / US 6 near Davenport 01980-01-01198002003-01-012003 Former section of US 6; was signed in 1989
Iowa 928 20.16832.457 Iowa 17 near Webster CityCR D20 near Williams 01980-01-01198002003-01-012003 Former section of US 20
Iowa 929 0.7891.270 Murray city limitsMaple Street in Murray 01980-01-01198002003-01-012003 Former section of Iowa 152
Iowa 930 1.7382.797 US 30 near AmesBooneStory county line 01972-01-011972current Former section of US 30
Iowa 931 1.21.9 Iowa 13 in CoggonIowa 13 near Coggon 01976-01-01197601978-01-011978 Former section of Iowa 13
Iowa 931 8.96214.423 I-35 in AnkenyUS 65 in Polk County 01980-01-01198002003-01-012003
Iowa 932 0.1930.311 Ryan city limitsIowa 13 in Ryan 01976-01-01197602003-01-012003 Former section of Iowa 13
Iowa 933 0.74[14]1.19 Iowa 141 in PerryIowa 141 in Perry 01976-01-01197601984-01-011984 Former section of Iowa 141
Iowa 933 0.21[29]0.34 01985-01-01198501999-01-011999 Former section of Iowa 58 just south of US 20
Iowa 934 1.07[7]1.72 US 61 near BurlingtonUS 61 near Burlington 01976-01-01197601980-01-011980 Former section of US 61; now Memorial Park Road
Iowa 934 1.14[17]1.83 Dallas–Polk county lineI-35 in Des Moines 01981-01-01198101989-01-011989 Former section of Iowa 90
Iowa 934 4.76[26]7.66 US 20 near MoorlandUS 169 in Fort Dodge 01990-01-01199001991-01-011991 Former section of US 20
Iowa 934 0.19[37]0.31 01992-01-01199201994-01-011994 Former section of US 34 just east of Iowa 97, which is now County Road S56
Iowa 934 4.8817.855 Iowa 58 in Cedar FallsUS 63 in Waterloo 01998-01-01199802016-01-012016 Was an unsigned highway
Iowa 935 0.77[15]1.24 01976-01-01197601981-01-011981 Former section of US 34 parallel to Business US 34 in Burlington
Iowa 935 1.4922.401 I-29Mills–Pottawattamie county line 01982-01-01198202003-01-012003 Former section of Iowa 370
Iowa 936 0.087[36]0.140 east city limits of West Burlingtonwest city limits of Burlington 01976-01-01197601995-01-011995 Former section of Iowa 406
Iowa 936 0.2750.443 Iowa 92 near AinsworthIowa 923 near Ainsworth 01997-01-01199702003-01-012003 Former section of Iowa 92
Iowa 937 4.23[24]6.81 Iowa 2 near BloomfieldIowa 2 near Bloomfield 01976-01-01197601977-01-011977 Former section of Iowa 2
Iowa 937 0.4600.740 Iowa 141 near PerryUS 169 near Perry 01977-01-01197702003-01-012003 Former section of Iowa 141
Iowa 938 1.57[7]2.53 Iowa 947 near ManchesterManchester Fish Hatchery 01976-01-01197601980-01-011980 Former Iowa 116
Iowa 938 0.4600.740 Union Street in UnionvilleUnionville south city limit boundary 01980-01-01198002003-01-012003 Former section of Iowa 369
Iowa 939 6.76[7]10.88 US 65Iowa 2 near Corydon 01976-01-01197601980-01-011980 Former section of Iowa 2
Iowa 939 18.93130.466 Iowa 187 near MasonvilleBlack HawkBuchanan county line 01980-01-01198002003-01-012003 Former section of US 20
Iowa 940 2.51[7]4.04 01976-01-01197601980-01-011980 Former sections of Iowa 2 at County Road S70, County Road T14, and in Centerville
Iowa 940 0.0810.130 TamaBenton county line near Belle PlaineIowa 21 near Belle Plaine 01981-01-01198102003-01-012003
Iowa 941 2.99[7]4.81 County Road J18 in MoraviaIowa 5 near Moravia 01976-01-01197601980-01-011980 Former section of Iowa 5
Iowa 941 6.38[12]10.27 US 30 / US 218 in Cedar RapidsUS 30 / US 218 in Cedar Rapids 01981-01-01198101987-01-011987 Former section of US 30/US 218 concurrency
Iowa 941 1.12[17]1.80 5th Avenue Southwest in EpworthBierman Road in Epworth 01988-01-01198801990-01-011990 Former section of US 20
Iowa 941 12.95320.846 I-35 near WilliamsIowa Falls city limits 01991-01-01199102003-01-012003 Former section of US 20
Iowa 942 5.70[7]9.17 Iowa 5 near MoraviaCounty Road J18 in Moravia 01976-01-01197601980-01-011980 Former section of Iowa 5; had another section south of Albia
Iowa 942 0.4660.750 Vine Street in WoodburnWoodburn city limits 01980-01-01198002003-01-012003 Former section of Iowa 104
Iowa 943 0.69[7]1.11 01974-01-01197401980-01-011980 Former section of Iowa 13 in Central City
Iowa 943 0.43[20]0.69 1st Street in GalvaGalva city limits 01980-01-01198001987-01-011987 Former section of Iowa 328
Iowa 943 0.48[17]0.77 01988-01-01198801990-01-011990 Former Iowa 12 ramp in Sioux City; road destroyed 1990s
Iowa 943 1.82[36]2.93 US 63 in DenverUS 63 in Denver 01994-01-01199401995-01-011995 Former section of US 63
Iowa 944 0.99[7]1.59 Iowa 13 in ManchesterIowa 13 in Manchester 01976-01-01197601980-01-011980 Former section of Iowa 13
Iowa 944 0.5530.890 US 61 / Iowa 2 in Fort MadisonFort Madison city limits 01980-01-01198002003-01-012003 Former section of Iowa 88
Iowa 945 4.5997.401 I-80 near AltoonaIowa 931 in Polk County 01980-01-01198002003-01-012003
Iowa 946 2.72[7]4.38 Luana city limitsUS 18 / US 52 in Monona 01976-01-01197601980-01-011980 Former section of US 18/US 52 concurrency; had two sections separated by the city limits of Monona
Iowa 946 0.07[17]0.11 US 218 in St. AnsgarPark Street in St. Ansgar 01988-01-01198801989-01-011989 Former section of US 218
Iowa 946 0.9271.492 US 52 / US 61 / US 151 in DubuqueUS 52 / US 61 / US 151 in Dubuque 01991-01-011991current Provides direct access between US 20 and US 52 / US 61 / US 151
Iowa 947 23.75[7]38.22 Iowa 187Dyersville city limits 01976-01-01197601981-01-011981 Former section of US 20
Iowa 947 0.45[12]0.72 Zearing city limitsPearl Street in Zearing 01981-01-01198101986-01-011986 Former section of Iowa 317
Iowa 947 4.74[12]7.63 Iowa 57 in Cedar FallsGreenhill Road in Waterloo 01989-01-01198901992-01-011992 Former section of US 218
Iowa 947 2.47[9]3.98 Iowa 70 in Columbus JunctionMarket Street in Columbus City 01994-01-01199402003-01-012003 Former section of Iowa 70; only the 0.671 miles in Columbus City were left on December 1, 1997
Iowa 948 5.08[20]8.18 DeWitt city limitsUS 30 near DeWitt 01975-01-01197501987-01-011987 Former section of US 30
Iowa 948 .30[37]0.48 US 61 / US 151 in DubuqueIowa 959 in Dubuque 01992-01-01199201993-01-011993 Former section of US 61/US 151 concurrency
Iowa 949 2.2753.661 Glenwood city limitsUS 34 / US 275 near Glenwood 01974-01-01197402003-02-182003 Formerly US 34 Business
Iowa 950 3.45[37]5.55 US 6 / US 65 in Altoonaiowa 163 in Pleasant Hill 01980-01-01198001994-01-011994 Now 34th Avenue/56th Street
Iowa 951 2.65[7]4.26 US 34 west of OsceolaUS 34 near Osceola 01976-01-01197601980-01-011980 Former section of US 34
Iowa 951 3.15[37]5.07 Carbon city limitsIowa 148 01983-01-01198301993-01-011993 Former Section of Iowa 95
Iowa 952 1.82.9 US 61 in BurlingtonCentral avenue in Burlington 01976-01-01197601976-01-011976 Former section of US 34
Iowa 952 0.18[14]0.29 01978-01-01197801982-01-011982 Former section of US 67 north of Clinton
Iowa 952 0.1120.180 US 151 near CascadeReiter Road near Cascade 01992-01-01199202003-01-012003 Former section of US 151
Iowa 953 0.89[7]1.43 Iowa 38 near MuscatineIowa 38 in Muscatine 01976-01-01197601980-01-011980 Former section of Iowa 38
Iowa 953 0.08[37]0.13 Iowa 149 in North EnglishDead end in North English 01988-01-01198801994-01-011994 Former section of Iowa 149
Iowa 953 1.0[37]1.6 Iowa 5 in West Des MoinesBrowns Woods Road in West Des Moines 01995-01-01199501996-01-011996 Former section of Iowa 28
Iowa 954 0.7731.244 US 61 near MaquoketaMaquoketa city limits 01967-01-01196702003-01-012003 Former section of US 61; numbered 1976
Iowa 955 0.7271.170 US 61 near Key WestIowa 963 (Military Road) in Key West 01971-01-01197102003-01-012003 Former section of US 61
Iowa 956 16.77626.998 CR F55 at DavenportUS 61 north of DeWitt 01976-01-01197602003-01-012003 Former section of US 61
Iowa 957 3.33[24]5.36 US 63 near BloomfieldUS 63 near Bloomfield 01976-01-01197601977-01-011977 Former section of US 63
Iowa 957 0.0620.100 01988-01-01198802003-01-012003 Former section of Iowa 22
Iowa 958 1.6102.591 Ottumwa city limitsUS 63 south of Ottumwa 01965-01-01196502003-01-012003 Former section of US 63
Iowa 959 1.27[7]2.04 US 65 / US 69 in Des MoinesDes Moines city limits 01970-01-01197001981-01-011981 Former section of US 65/US 69 concurrency
Iowa 959 1.29[37]2.08 US 61 / US 151 in DubuqueUS 61 / US 151 & US 52 in Dubuque 01992-01-01199201993-01-011993 Former section of US 61/US 151 concurrency
Iowa 960 1.58[7]2.54 Clarinda city limitsIowa 2 near Clarinda 01973-01-01197301982-01-011982 Former section of Iowa 2
Iowa 960 1.11[12]1.79 01982-01-01198201986-01-011986 Former section of US 61
Iowa 960 4.77.6 01993-01-01199301994-01-011994 Former section of US 61/US 218 concurrency north of Keokuk
Iowa 960 1.0161.635 US 75 Business/Iowa 404 in Le MarsDead end in Le Mars 02006-01-01200602007-01-012007 Former section of Iowa 60
Iowa 961 0.56[7]0.90 Villisca city limitsUS 71 near Villisca 01976-01-01197601980-01-011980 Former section of US 71
Iowa 961 1.08[37]1.74 US 61 / US 151 in DubuqueUS 20 in Dubuque (southbound), Iowa 946 in Dubuque (northbound) 01991-01-01199101993-01-011993 Former section of US 151 and US 61
Iowa 961 0.50[36]0.80 01994-01-01199401996-01-011996 Former section of US 61 in Wever
Iowa 961 3.6135.815 Iowa 2 in Fort MadisonUS 61 at Fort Madison 02011-01-01201102013-01-012013 Section of US 61 Business in Fort Madison
Iowa 962 0.11[9]0.18 US 218 near AinsworthCounty Road W64 near Ainsworth 01994-01-01199401997-01-011997 Former section of US 218
Iowa 963 4.1396.661 US 151 near Key WestUS 61 / US 151 in Dubuque 01971-01-01197102003-01-012003 Former section of US 151 and US 61
Iowa 964 4.704[9]7.570 Iowa 92 near KnoxvilleIowa 92 near Knoxville 01977-01-01197701996-01-011996 Former section of Iowa 92
Iowa 965 3.29[7]5.29 01976-01-01197601980-01-011980 Former section of US 52
Iowa 965 0.5190.835 US 6 in CoralvilleI-80 in Coralville 01985-01-011985current Former section of US 218; extended to Cedar Rapids until 2003
Iowa 966 4.897.87 CentraliaUS 20 01976-01-01197601996-01-011996 Former Iowa 416, and before that, was a section of US 20
Iowa 967 0.0370.060 US 20 near FarleyFarley city limits 01976-01-01197602003-01-012003 Former Iowa 418, and before that, was a section of US 20
Iowa 968 2.37[17]3.81 Iowa 136 in DyersvilleUS 20 01976-01-01197601989-01-011989 Former Iowa 420, and before that, was a section of US 20
Iowa 968 5.36[36]8.63 Iowa 163 in PellaIowa 163 in Pella 01993-01-01199301994-01-011994 Former section of Iowa 163
Iowa 969 0.52[7]0.84 US 169 near BurtBurt 01976-01-01197601980-01-011980 Spur route; former Iowa 422
Iowa 969 4.06.4 US 218 near JanesvilleUS 218 near Janesville 01993-01-01199301994-01-011994 Former section of US 218
Iowa 970 31.79[7]51.16 Business US 75 in Sioux CityIowa 175 in Onawa 01976-01-01197602003-01-012003 Former section of US 75
Iowa 971 10.78[7]17.35 Iowa 2US 59 in Shenandoah 01975-01-01197501979-01-011979 Former section of Iowa 2
Iowa 971 1.802[25]2.900 US 69 in Lake MillsWinnebago–Worth county line 01993-01-01199302003-01-012003 Former section of Iowa 105; only 0.777 miles in Lake Mills were left in 2002
Iowa 972 2.003.22 US 218Mount Pleasant city limits 01969-01-01196901974-01-011974 Former section of US 218; renumbered Iowa 976 to avoid confusion with the other Iowa 972
Iowa 972 2.7724.461 I-29 / US 34 near GlenwoodIowa 385 near Pacific Junction 01974-01-01197401974-01-011974 Former section of US 34; renumbered Iowa 978 to avoid confusion with the other Iowa 972
Iowa 972 10.17[7]16.37 Iowa 92 / US 169 in WintersetUS 169 01974-01-01197401980-01-011980 Former section of US 169
Iowa 972 1.8773.021 Northwood city limitsNorthwood city limits 01993-01-01199302003-01-012003 Former section of Iowa 105
Iowa 973 1.95[13]3.14 I-29 in Council BluffsUS 6 in Council Bluffs 01969-01-01196901971-01-011971 Former section of US 75
Iowa 973 10.32[22]16.61 US 71 near AtlanticIowa 148 in Anita 01972-01-01197201973-01-011973 Former section of US 6; became part of an extended Iowa 83
Iowa 973 1.49[7]2.40 Iowa 92 in WintersetIowa 972 in Winterset 01976-01-01197601980-01-011980 Former section of Iowa 92
Iowa 973 0.651.05 St. Ansgar city limitsUS 218 in St. Ansgar 01993-01-01199302001-01-012001 Former section of Iowa 105
Iowa 974 5.09[7]8.19 O'Connor Road northwest of Mount VernonMount Vernon city limits 01965-01-01196501980-01-011980 Former section of Iowa 150
Iowa 975 1.33[18]2.14 North city limits of MarengoCR F15 north of Marengo 01964-01-01196401974-01-011974 Former section of Iowa 411
Iowa 975 1.55[12]2.49 Iowa 964 in KnoxvilleIowa 5 / Iowa 92 in Knoxville 01978-01-01197801986-01-011986 Former section of Iowa 5/Iowa 92 concurrency
Iowa 975 0.130.21 01995-01-01199501995-01-011995 Former section of US 275/Iowa 333 concurrency east of Hamburg
Iowa 976 2.00[18]3.22 US 218Mount Pleasant city limits 01974-01-01197401980-01-011980 Former section of US 218; formerly Iowa 972
Iowa 976 0.220.35 Marshalltown city limitsGovernor Road east of Marshalltown 01996-01-01199601997-01-011997 Former section of US 30
Iowa 976 0.8791.415 01997-01-01199702003-01-012003 Former section of US 30
Iowa 977 2.0073.230 US 59 in CherokeeIowa 3 near Cherokee 01962-01-01196202003-01-012003 Former section of Iowa 3
Iowa 978 2.77[19]4.46 Iowa 44 in WhittemoreIowa 358 in Whittemore 01962-01-01196201965-01-011965 Former section of Iowa 358
Iowa 978 2.7724.461 I-29 / US 34 near GlenwoodIowa 385 near Pacific Junction 01974-01-01197402003-02-182003 Former section of US 34; formerly Iowa 972
Iowa 979 19.80[13]31.87 Iowa City limitsIowa 38 01961-01-01196102003-01-012003 Former section of Iowa 1
Iowa 980 0.77[7]1.24 US 34 near OttumwaOttumwa city limits 01967-01-01196701980-01-011980 Former section of US 34; formerly US 34 Alternate
Iowa 981 0.44[7]0.71 Iowa 150 near FayetteFayette city limits 01967-01-01196701980-01-011980 Former section of Iowa 150; formerly Iowa 991
Iowa 981 0.20.32 US 34 (later Iowa 340) in BataviaUS 34 (later Iowa 340) in Batavia 01995-01-01199501996-01-011996 Former section of US 34
Iowa 982 0.30[19]0.48 Dubuque–Jones County LineIowa 136 near Cascade 01961-01-01196101965-01-011965 Former section of Iowa 136
Iowa 982 27.78744.719 Smithland city limitsSioux City city limits 01967-01-01196702003-01-012003 Former section of Iowa 141; formerly Iowa 994
Iowa 983 0.99[19]1.59 Iowa 989US 34 / Iowa 213 01961-01-01196101964-01-011964 Former section of Iowa 213
Iowa 983 0.81[7]1.30 US 34 west of CharitonUS 34 east of Chariton 01967-01-01196701980-01-011980 Former section of US 34; formerly Iowa 995 and Iowa 996; had a gap through Chariton
Iowa 983 0.20.32 Market Street in CarlisleDead end in Carlisle 01998-01-01199801998-01-011998 Former section of Iowa 5
Iowa 984 2.24[15]3.60 Bettendorf city limitsUS 67 in Le Claire 01968-01-01196801982-01-011982 Former section of Iowa 417
Iowa 985 1.00[19]1.61 US 63 north of OskaloosaUS 63 north of Oskaloosa 01961-01-01196101965-01-011965 Former section of US 63; decommissioned by 1965
Iowa 985 7.66[22]12.33 Sioux City limitsI-29 in Sioux City 01969-01-01196901973-01-011973 Former section of Iowa 7
Iowa 985 1.9273.101 US 52 near Bellevue State ParkUS 52 near Bellevue 01980-01-01198002003-01-012003 Park access road; former section of US 52
Iowa 986 4.86[12]7.82 Harrison–Monona county lineIowa 301 in River Sioux 01968-01-01196801986-01-011986 Former section of US 75
Iowa 987 4.45[19]7.16 US 63 / Iowa 412 in WaterlooHudson city limits 01961-01-01196101964-01-011964 Former section of US 63
Iowa 988 0.16[19]0.26 Iowa 58 near HudsonHudson city limits 01961-01-01196101964-01-011964 Former section of US 63
Iowa 988 2.3123.721 I-29 / I-680 near CrescentIowa 183 in Crescent 01975-01-01197502003-01-012003
Iowa 989 17.76[19]28.58 Albia city limitsUS 34 near Ottumwa 01961-01-01196101964-01-011964 Former section of US 34
Iowa 990 0.27[19]0.43 Iowa 150 near FayetteFayette city limits 01961-01-01196101965-01-011965 Former section of Iowa 150
Iowa 991 0.44[5]0.71 Fayette city limitsIowa 150 near Fayette 01961-01-01196101967-01-011967 Former section of Iowa 150; renumbered Iowa 981
Iowa 992 8.81[19]14.18 Wesley city limitsBritt city limits 01961-01-01196101965-01-011965 Former section of US 18
Iowa 993 3.52[19]5.66 US 18 near WesleyWesley city limits 01961-01-01196101965-01-011965 Former section of US 18
Iowa 994 27.787[5]44.719 Smithland city limitsSioux City city limits 01961-01-01196101967-01-011967 Former section of Iowa 141; renumbered Iowa 982
Iowa 995 0.56[5]0.90 US 34 west of CharitonChariton city limits 01961-01-01196101967-01-011967 Former section of US 34; renumbered Iowa 983
Iowa 996 0.23[18]0.37 Chariton city limitsUS 34 east of Chariton 01961-01-01196101976-01-011976 Former section of US 34; became a second section of Iowa 983
Iowa 997 0.89[11]1.43 US 169 / Iowa 5 near Fort DodgeFort Dodge city limits 01961-01-01196101970-01-011970 Former section of Iowa 5 (now Iowa 7)
Iowa 998 0.67[37]1.08 US 61 near MontroseDead end in Montrose 01961-01-01196101994-01-011994 Former section of US 61; renumbered Iowa 924
Iowa 999 2.22[7]3.57 Spruce Street in College SpringsIowa 333 near College Springs 01961-01-01196101980-01-011980 Former section of Iowa 333
  •       Former

References

  1. 2012 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. January 1, 2012. Retrieved November 6, 2013.
  2. 2002 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. January 1, 2002. Retrieved September 3, 2019.
  3. 1 2 3 4 5 6 7 8 "U.S. Road Markers Soon to Replace Familiar Primary Road Signs on U.S. System in Iowa". Service Bulletin Oct–Nov–Dec 1925. Iowa State Highway Commission. XIII (10–11–12): 3. 1925.
  4. 1 2 3 4 5 6 7 8 9 10 11 12 13 1938 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa State Highway Commission. September 26, 1938. Retrieved September 13, 2019.
  5. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 1965 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa State Highway Commission. June 1966. Retrieved September 13, 2019.
  6. 1 2 3 4 5 6 7 8 9 10 1956 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa State Highway Commission. May 1957. Retrieved September 14, 2019.
  7. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 1978 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. December 31, 1978. Retrieved September 13, 2019.
  8. 1 2 3 4 5 6 7 8 9 1941 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa State Highway Commission. April 30, 1942. Retrieved September 14, 2019.
  9. 1 2 3 4 5 6 7 8 1996 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. August 1997. Retrieved September 3, 2019.
  10. 1 2 3 4 5 6 7 8 9 10 11 1934 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa State Highway Commission. March 25, 1935. Retrieved September 13, 2019.
  11. 1 2 3 4 5 6 7 8 1968 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa State Highway Commission. March 1970. Retrieved September 13, 2019.
  12. 1 2 3 4 5 6 7 8 9 10 11 12 13 1984 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. August 1985. Retrieved September 3, 2019.
  13. 1 2 3 4 5 6 7 8 9 10 1970 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa State Highway Commission. July 1971. Retrieved September 13, 2019.
  14. 1 2 3 4 1982 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. December 31, 1982. Retrieved September 3, 2019.
  15. 1 2 3 4 5 6 7 8 9 1980 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. December 31, 1980. Retrieved September 13, 2019.
  16. 1 2 3 4 5 6 7 8 9 10 11 12 13 1959 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa State Highway Commission. June 1960. Retrieved September 14, 2019.
  17. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1988 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. January 1, 1988. Retrieved September 3, 2019.
  18. 1 2 3 4 5 6 7 8 1974 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa State Highway Commission. May 1, 1976. Retrieved September 13, 2019.
  19. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 1962 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa State Highway Commission. May 1963. Retrieved September 13, 2019.
  20. 1 2 3 4 5 6 1986 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. 1987. Retrieved September 3, 2019.
  21. 1 2 3 4 1953 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa State Highway Commission. August 1954. Retrieved September 14, 2019.
  22. 1 2 3 4 5 6 7 1972 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa State Highway Commission. April 1973. Retrieved September 13, 2019.
  23. 1 2 1951 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa State Highway Commission. January 1, 1951. Retrieved September 14, 2019.
  24. 1 2 3 4 1976 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. December 31, 1976. Retrieved September 12, 2019.
  25. 1 2 3 4 5 6 7 8 9 2000 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. August 2001. Retrieved September 3, 2019.
  26. 1 2 3 4 1990 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. 1991. Retrieved September 3, 2019.
  27. 1 2 3 4 2006 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. January 1, 2006. Retrieved September 3, 2019.
  28. 2003 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. January 1, 2003. Retrieved September 3, 2019.
  29. 1 2 3 4 1998 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. 1999. Retrieved September 3, 2019.
  30. "Primary Route Descriptions – Unsigned Iowa 374 in Jasper County". Iowa Department of Transportation. Retrieved September 3, 2019.
  31. 1949 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa State Highway Commission. January 1951. Retrieved September 14, 2019.
  32. 2004 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. January 1, 2004. Retrieved September 3, 2019.
  33. 2008 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. January 1, 2008. Retrieved September 3, 2019.
  34. "Primary Route Descriptions – Iowa 475 in Monona County". Iowa Department of Transportation. Retrieved September 3, 2019.
  35. https://iowadot.gov/analytics/PrimaryRteDescrips/Polk/IA%20915%20(unsigned).htm. {{cite web}}: Missing or empty |title= (help)
  36. 1 2 3 4 5 1994 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. August 1995. Retrieved September 3, 2019.
  37. 1 2 3 4 5 6 7 8 9 1992 Volume of Traffic on the Primary Road System of Iowa (PDF) (Report). Iowa Department of Transportation. 1993. Retrieved September 7, 2019.
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