Arco, Idaho
City
Nickname: 
Atomic City
Location of Arco in Butte County, Idaho.
Location of Arco in Butte County, Idaho.
Arco, Idaho is located in the United States
Arco, Idaho
Arco, Idaho
Location in the United States
Coordinates: 43°38′5″N 113°18′5″W / 43.63472°N 113.30139°W / 43.63472; -113.30139
CountryUnited States
StateIdaho
CountyButte
Area
[1]
 • Total1.08 sq mi (2.80 km2)
 • Land1.07 sq mi (2.77 km2)
 • Water0.01 sq mi (0.03 km2)
Elevation
[2]
5,325 ft (1,623 m)
Population
 (2020)[3]
 • Total879
 • Density810/sq mi (310/km2)
Time zoneUTC-7 (Mountain (MST))
 • Summer (DST)UTC-6 (MDT)
ZIP code
83213
Area codes208, 986
FIPS code16-03160
GNIS feature ID0396049[2]

Arco is a city in Butte County, Idaho, United States. The population was 879 as of the 2020 United States census, down from 995 at the 2010 census.[4][5] Arco is the county seat and largest city in Butte County.[6]

History

Arco was named as early as 1860 based on the name of a local rancher, Louis Arco.[7] Louis Arco is also mentioned in the National Park Service’s Teacher's Guide to Craters of the Moon with the line “[around] 1862 Louis Arco establishe[d] a ranch and trading post at Arco."

Arco was the first community in the world ever to be lit by electricity generated solely by nuclear power. This occurred for about an hour on July 17, 1955, powered by Argonne National Laboratory’s BORAX-III reactor at the nearby National Reactor Testing Station (NRTS), now the Idaho National Laboratory.[8] NRTS made further history on January 3, 1961, when the SL-1 reactor was destroyed through an operator maintenance error, with the ensuing steam explosion causing the deaths of all three personnel present. It was the world's first and the United States' only fatal reactor accident.[9]

Economy

The town's economic base is primarily derived from the Idaho National Laboratory (formerly the Idaho National Engineering Laboratory or INEL), agricultural products, and recreation in the Lost River Valley.

Highways

Geography

Arco is located along the Big Lost River[10] and is a gateway to the Lost River Range from the Snake River Plain. Craters of the Moon National Monument is located along U.S. Route 20, southwest of the city. The Idaho National Laboratory (INL) is located east of Arco.

Arco Peak, located two mile north of the community at an elevation of 7547 feet, rises 2220 feet above the city.[10]

According to the United States Census Bureau, the city has a total area of 1.07 square miles (2.77 km2), of which, 1.06 square miles (2.75 km2) is land and 0.01 square miles (0.03 km2) is water.[11]

In town, the most striking physical feature is Number Hill, a rocky hill with numbers painted all over it. Butte County High School has a tradition of each class since 1920 painting its graduation year on the face of hill.[12]

Climate

Climate data for Arco, Idaho, 1991–2020 normals, extremes 1914–present
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 52
(11)		 59
(15)		 71
(22)		 87
(31)		 95
(35)		 97
(36)		 102
(39)		 100
(38)		 100
(38)		 85
(29)		 70
(21)		 59
(15)		 102
(39)
Mean maximum °F (°C) 41.9
(5.5)		 45.4
(7.4)		 59.8
(15.4)		 71.6
(22.0)		 81.4
(27.4)		 89.0
(31.7)		 94.9
(34.9)		 93.1
(33.9)		 87.2
(30.7)		 75.4
(24.1)		 58.0
(14.4)		 45.2
(7.3)		 95.8
(35.4)
Mean daily maximum °F (°C) 30.3
(−0.9)		 34.7
(1.5)		 45.9
(7.7)		 57.2
(14.0)		 67.0
(19.4)		 76.4
(24.7)		 86.6
(30.3)		 84.8
(29.3)		 74.9
(23.8)		 59.5
(15.3)		 42.6
(5.9)		 31.2
(−0.4)		 57.6
(14.2)
Daily mean °F (°C) 18.6
(−7.4)		 23.2
(−4.9)		 34.4
(1.3)		 43.8
(6.6)		 52.8
(11.6)		 61.0
(16.1)		 69.1
(20.6)		 67.2
(19.6)		 57.9
(14.4)		 45.0
(7.2)		 30.8
(−0.7)		 20.3
(−6.5)		 43.7
(6.5)
Mean daily minimum °F (°C) 7.0
(−13.9)		 11.7
(−11.3)		 22.8
(−5.1)		 30.4
(−0.9)		 38.6
(3.7)		 45.7
(7.6)		 51.6
(10.9)		 49.5
(9.7)		 41.0
(5.0)		 30.5
(−0.8)		 19.1
(−7.2)		 9.3
(−12.6)		 29.8
(−1.2)
Mean minimum °F (°C) −12.0
(−24.4)		 −7.3
(−21.8)		 6.3
(−14.3)		 18.2
(−7.7)		 25.5
(−3.6)		 33.4
(0.8)		 42.3
(5.7)		 39.1
(3.9)		 28.4
(−2.0)		 16.1
(−8.8)		 2.8
(−16.2)		 −8.7
(−22.6)		 −15.8
(−26.6)
Record low °F (°C) −46
(−43)		 −32
(−36)		 −20
(−29)		 −3
(−19)		 11
(−12)		 20
(−7)		 29
(−2)		 25
(−4)		 11
(−12)		 1
(−17)		 −22
(−30)		 −45
(−43)		 −46
(−43)
Average precipitation inches (mm) 0.67
(17)		 0.62
(16)		 0.68
(17)		 0.86
(22)		 1.20
(30)		 1.13
(29)		 0.32
(8.1)		 0.54
(14)		 0.66
(17)		 0.71
(18)		 0.55
(14)		 0.86
(22)		 8.80
(224)
Average snowfall inches (cm) 7.0
(18)		 4.6
(12)		 1.1
(2.8)		 1.3
(3.3)		 0.2
(0.51)		 0.0
(0.0)		 0.0
(0.0)		 0.0
(0.0)		 0.0
(0.0)		 0.3
(0.76)		 1.2
(3.0)		 8.1
(21)		 23.8
(61.37)
Average precipitation days (≥ 0.01 in) 4.4 3.7 3.9 4.8 6.0 3.9 2.2 3.0 3.6 3.7 3.4 5.1 47.7
Average snowy days (≥ 0.1 in) 2.7 1.5 0.8 0.6 0.2 0.0 0.0 0.0 0.0 0.0 0.9 2.5 9.2
Source 1: NOAA[13]
Source 2: National Weather Service[14]

Demographics

Historical population
CensusPop.Note%±
1910322—
1920737128.9%
1930572−22.4%
1940548−4.2%
195096175.4%
19601,56262.5%
19701,244−20.4%
19801,241−0.2%
19901,016−18.1%
20001,0261.0%
2010995−3.0%
2020879−11.7%
U.S. Decennial Census[15]

2010 census

As of the 2010 United States Census[3] of 2010, there were 995 people, 417 households, and 254 families living in the city. The population density was 938.7 inhabitants per square mile (362.4/km2). There were 504 housing units at an average density of 475.5 per square mile (183.6/km2). The racial makeup of the city was 95.1% White, 0.3% Native American, 0.3% Asian, 1.7% from other races, and 2.6% from two or more races. Hispanic or Latino of any race were 3.0% of the population.

There were 417 households, of which 30.2% had children under the age of 18 living with them, 44.4% were married couples living together, 13.2% had a female householder with no husband present, 3.4% had a male householder with no wife present, and 39.1% were non-families. 34.1% of all households were made up of individuals, and 15.9% had someone living alone who was 65 years of age or older. The average household size was 2.35 and the average family size was 3.03.

The median age in the city was 41.2 years. 26.9% of residents were under the age of 18; 6.1% were between the ages of 18 and 24; 21.6% were from 25 to 44; 26.1% were from 45 to 64; and 18.9% were 65 years of age or older. The gender makeup of the city was 51.8% male and 48.2% female.

2000 census

As of the 2000 United States Census[16] of 2000, there were 1,026 people, 427 households, and 269 families living in the city. The population density was 1,163.9 inhabitants per square mile (449.4/km2). There were 505 housing units at an average density of 572.9 per square mile (221.2/km2). The racial makeup of the city was 95.13% White, 0.49% African American, 1.36% Native American, 1.75% from other races, and 1.27% from two or more races. Hispanic or Latino of any race were 3.61% of the population.

City office / Recreation Hall
on Main Street in Arco

There were 427 households, out of which 29.3% had children under the age of 18 living with them, 48.2% were married couples living together, 11.9% had a female householder with no husband present, and 37.0% were non-families. 34.0% of all households were made up of individuals, and 15.2% had someone living alone who was 65 years of age or older. The average household size was 2.35 and the average family size was 3.04.

In the city, the population was spread out, with 27.9% under the age of 18, 6.8% from 18 to 24, 22.4% from 25 to 44, 25.8% from 45 to 64, and 17.1% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 91.8 males. For every 100 females age 18 and over, there were 90.7 males.

The median income for a household in the city was $27,993, and the median income for a family was $34,688. Males had a median income of $34,688 versus $17,386 for females. The per capita income for the city was $14,744. About 19.6% of families and 22.6% of the population were below the poverty line, including 33.8% of those under age 18 and 15.8% of those age 65 or over.

Notable residents

See also

References

  1. ↑ "2019 U.S. Gazetteer Files". United States Census Bureau. Retrieved July 9, 2020.
  2. 1 2 U.S. Geological Survey Geographic Names Information System: Arco, Idaho
  3. 1 2 "U.S. Census website". United States Census Bureau. Retrieved December 18, 2012.
  4. ↑ "Arco, Idaho". data.census.gov. Retrieved August 8, 2022.
  5. ↑ U.S. Census Bureau, 2010 Census Redistricting Data (Public Law 94-171) Summary File: Arco, Idaho. From U.S. Census website
  6. ↑ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
  7. ↑ Anderson, Abraham C. (1940). Trails of Early Idaho: The Pioneer Life of George W. Goodhart. Caldwell, Idaho: Caxton Printers. p. 257.
  8. ↑ "AEC Press release for BORAX-III lighting Arco, Idaho". United States Department of Energy, Argonne National Laboratory. 1999. Retrieved July 26, 2012.
  9. ↑ See List of nuclear power accidents by country.
  10. 1 2 Arco North, ID, 7.5 Minute topographic Quadrangle, USGS, 1972
  11. ↑ "US Gazetteer files 2010". United States Census Bureau. Archived from the original on January 25, 2012. Retrieved December 18, 2012.
  12. ↑ Gallery Fifty Eight: Man and nature -- Number Hill, Arco, Idaho, 2010 Retrieved 2014-09-28. Photo of Number Hill shown.
  13. ↑ "U.S. Climate Normals Quick Access – Station: Arco, ID". National Oceanic and Atmospheric Administration. Retrieved February 25, 2023.
  14. ↑ "NOAA Online Weather Data – NWS Pocatello". National Weather Service. Retrieved February 25, 2023.
  15. ↑ "Census of Population and Housing". Census.gov. Retrieved June 4, 2015.
  16. ↑ "U.S. Census website". United States Census Bureau. Retrieved January 31, 2008.
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