Communities

Education

• Harvard Community Unit School District 50
• Hiawatha Community Unit School District 426
• North Boone Community Unit School District 200
• Rockford School District 205
• Belvidere Community Unit School District 100
  • Belvidere North High School
  • Belvidere High School (Illinois)
• Rock Valley College

Churches

• Willow Creek Presbyterian Church, Argyle

Structures

• Illinois Route 76
• Illinois Route 173
• Interstate 90 in Illinois
• Kenosha and Rockford Railroad
• U.S. Route 20 Business (Rockford, Illinois)
• U.S. Route 20 in Illinois
• National Register of Historic Places listings in Boone County, Illinois
  • Lampert-Wildflower House
  • Old Belvidere High School (Belvidere, Illinois)
  • United States Post Office (Belvidere, Illinois)
  • Pettit Memorial Chapel
  • Belvidere North State Street Historic District
  • Belvidere South State Street Historic District
• Poplar Grove Airport
• Ida Public Library

Landforms

• Kishwaukee River
• Tributaries of the Kishwaukee River
  • Piscasaw Creek (Kishwaukee River)
  • Rush Creek (Kishwaukee River tributary)
  • Beaver Creek (Kishwaukee River tributary)
  • Killbuck Creek (Kishwaukee River tributary)
  • North Branch Kishwaukee River
  • South Branch Kishwaukee River
  • Mokeler Creek
  • Bessie Creek (Kishwaukee River tributary)
  • Lawrence Creek (Kishwaukee River tributary)
  • Owens Creek (Kishwaukee River tributary)
  • Coon Creek (Kishwaukee River tributary)
• Kishwaukee River State Fish and Wildlife Area
• White Rock Moraine

Historical periods

• Mississippian culture
• Upper Mississippian culture

Argyle

• George Armour, early Argyle resident

Belvidere

• Othman A. Abbott, Nebraska politician who grew up in Belvidere and served in Illinois cavalry regiment
• Lucien Lester Ainsworth, Iowa politician who was a lawyer in Belvidere for a year
• Carrie Thomas Alexander-Bahrenberg
• Alfred Elisha Ames
• Philip Arbuckle
• List of George Franklin Barber works, architect, designed 15 historic houses in Belvidere
• Leo Binz, Catholic pastor in Belvidere, later Archbishop in MN
• Frank Bishop, infielder for the Chicago Browns
• Emory S. Bogardus, sociologist
• William D. Boies, Iowa politician born in Belvidere
• Elmer Ellsworth Brown, principal at Belvidere High School, later US Commissioner of Education
• Albert Cashier
• Joe Charboneau, outfielder and designated hitter for the Cleveland Indians
• Robert A. Childs, politician raised in Belvidere, part of Hurlbut's company 15th IL regiment, briefly lawyer there
• Reuben W. Coon, publisher of the Belvidere Northwestern and state's attorney for Boon County
• Thomas Neill Cream, Scots-born serial killer convicted of poisoning in Belvidere
• Myron Henry Feeley, Canadian politician, born in Belvidere
• John J. Foote
• Judith Ford, 1969 Miss America
• Allen C. Fuller
• Charles Eugene Fuller, U.S. Congressman
• DuFay A. Fuller
• Jack D. Franks, politician born in Belvidere
• Jeanne Gang, architect
• William Matthias Georgen, basketball player, captain of national champions Chicago Maroons 1908-1909
• Boyd Hill, Oklahoma territory coach
• Stephen Augustus Hurlbut (1815-1882), politician and Union commander in the Civil War
• Noyes L. Jackson, Illinois politician
• Kasey James, WWE wrestler
• Mike Junkin, NFL football player from Belvidere
• John Lawson (baseball)
• Amanda Levens, women's college basketball player and coach
• Edwin A. Miller, Wisconsin politician
• Richard S. Molony, Belvidere doctor who became a politician, buried in Belvidere cemetery
• Mary L. Moreland, Congregationalist minister
• Charles H. Parker, Beloit politician who lived in Belvidere
• Lowell Holden Parker, Wisconsin legislator, son of above
• Stan Patrick, basketball player, died in Belvidere
• Rowland Salley, musician born in Belvidere
• Albert Charles Schaeffer, mathematician
• Fred Schulte, outfielder for the St. Louis Browns, Washington Senators and Pittsburgh Pirates
• Kurt Sellers, wrestler with the WWE (as K.C. James and James Curtis)
• Cris Shale, football player, lives in Belvidere
• Rob Sherman, atheist activist, pilot who died in area plane crash
• James A. Slater, entomologist at the University of Connecticut
• Joe Sosnowski, current IL representative
• Ted Strain, Harvard Hornets and UW basketball player, died in Belvidere
• Roger Charles Sullivan, Illinois politician born in Belvidere
• Scott Taylor (racing driver)
• Horace Mann Towner, Iowa politician and Governor of Puerto Rico, born in Belvidere
• Cornelius Mortimer Treat, school administrator
• James Waddington, Wisconsin State Senator
• Ronald A. Wait, Illinois politician
• Frederick Wolf, Episcopal bishop, priest of Holy Trinity Church in Belvidere

Caledonia

• Glenn W. Birkett
• John Early (politician)
• Murder of Peggy Johnson, Jane Doe murder victim originally buried in Caledonia, now in Belvidere

Capron

• Zeke Markshausen NFL player
• Horace Capron, village named for him

Cherry Valley

• Virgil Abloh
• John Baumgarten
• Leroy M. Green
• Mo Pitney

Garden Prairie

• A. A. Ames, Minnesota politician, born in Garden Prairie
• Washington Porter, farmer and real estate entrepreneur, born and raised in Garden Prairie

Loves Park

• Dick Kulpa
• Robin Zander

Russellville

• Laura Andrews Rhodes, opera singer raised in Russellville