Boone County Illinois - Government Site
Population: 52,617
Area: 281 square miles
County Seat: Belvidere
Area Code(s) in use: 815
Time Zone: CST
Adjacent counties:
Dekalb McHenry Ogle Rock (WI) Walworth (WI) Winnebago
Airport
Belvidere Assembly Plant Heliport, Belvidere Limited Airport, Bob Walberg Field, Compass Rose Airport, Green Giant-Dillon Farm Heliport, Henderson Airport, McCurdy Strip, Munch Heliport, Nemec Airport, Pine Hill Airport
Building
Belvidere City Hall, Boone County Courthouse, Grange Hall, Ida Public Library
Cemetery
Andrews Cemetery, Andrus Cemetery, Bamblett Cemetery, Belvidere Cemetery, Blaine Cemetery, Bloods Point Cemetery, Booth Cemetery, Burr Oak Cemetery, Capron Cemetery, Center Cemetery, Chemung Cemetery, Chester Cemetery, Clark Cemetery, County Line Cemetery, Drake Cemetery, Dullam Cemetery, East Bonus Cemetery, Ewins Cemetery, Flora Cemetery, Forest Hill Cemetery, Garden Prairie Cemetery, Highland Garden of Memories, Lawrenceville Cemetery, Livingston Cemetery, Long Prairie Cemetery, Lynn Norweigan Cemetery, North Russelville Cemetery, Oak Hill Cemetery, Orth Cemetery, Popular Grove Cemetery, Rosehill Cemetery, Russellville Cemetery, Saint James Catholic Cemetery, Saint Mary of the Lake Cemetery, Shattucks Grove Cemetery, South Poplar Grove Cemetery, Spring Township Cemetery, Stone School Cemetery, Tound Prairie Cemetery, White Oak Cemetery, Willow Creek Cemetery
Church
Church of the Nazarene, First Church of Christ Scientist, First Presbyterian Church, Flora Church, Immanuel Evangelical Lutheran Church, Jefferson Prairie Church, Manchester Church, Mission Covenant Church, Open Bible Church, Pettit Memorial Chapel, Saint James Roman Catholic Church, Saint Johns Evangelical Church, Trinity Episcopal Church, Zion Evangelical Lutheran Church
Civil
Boone County, Township of Belvidere, Township of Bonus, Township of Boone, Township of Caledonia, Township of Flora, Township of LeRoy, Township of Manchester, Township of Poplar Grove, Township of Spring
Crossing
Belvidere Interchange
Dam
Candlewick Lake Dam
Hospital
Highland Hospital, Saint Joseph Hospital (historical)
Lake
County Lake
Locale
Belvidere Service Area, Boone County Home (historical), Caledonia Junction (historical), Camp Epworth
Mine
Irene Quarry Number 116, Lee Quarry, State Street Mine
Park
Belvidere Municipal Park, Boone County Fair Grounds, Flora Prairie Nature Preserve, Kinnikinnick Creek Nature Preserve, Spencer Park
Populated Place
Beaverton Crossroads, Belvidere, Blaine, Caledonia, Capron, Edgewood, Garden Prairie, Herbert, Hunter, Irene, North Caledonia (historical), Poplar Grove, Prairie View, Reeds Crossing (historical), Russellville, Timberlane
Post Office
Belvidere Post Office, Caledonia Post Office, Garden Prairie Post Office, Hunter Post Office (historical), Irene Post Office (historical), Parks Corners Post Office (historical)
Reserve
Kinnikinnick Creek Nature Preserve, Lib Forest Preserve
Reservoir
Candlewick Lake
School
Abbe School (historical), Avery School (historical), Bailey School (historical), Bamblett School (historical), Beaverton School (historical), Beck School (historical), Belvidere High School, Belvidere Junior High School, Bethel School (historical), Bloods Point School (historical), Booth School (historical), Brick School (historical), Buck School (historical), Burr Oak School (historical), Caledonia Elementary School, Capron Elementary School, Carpenter School (historical), Center School (historical), Cohoon School (historical), Colvin School (historical), Cummings School (historical), Curtis School (historical), Davis School (historical), Denny School (historical), Dullam School (historical), Fish School (historical), Flora Center School (historical), Gould School (historical), Graves School (historical), Gray School (historical), Hoppen School (historical), Hovey School (historical), Immanuel School, Kishwaukee Elementary School, Lawrence School (historical), Lincoln Elementary School, Livingston School (historical), Logan Elementary School, Manchester Elementary School, Mill School (historical), Morgan School (historical), North Boone High School, Number 10 School, Oak Grove School (historical), Orth School (historical), Perry Elementary School, Poplar Grove Elementary School, Porter School (historical), Quailtrap School (historical), Ray School (historical), Red Brick School (historical), Redoak School (historical), Reed School (historical), Rinegar School (historical), River Road School (historical), Rollingsville School (historical), Russellville School (historical), Sager School (historical), Saint James School, Scrivens School (historical), Shannon School (historical), Squaw Prairie School (historical), Stimes School (historical), Stone School (historical), Stone School (historical), Warrentown School (historical), Washington Elementary School, Washington Public School (historical), White Pigeon School (historical), Willard School (historical), Witbeck School (historical), Wyman School (historical)
Stream
Beaver Creek, Coon Creek, Geryune Creek, Lawrence Creek, Mosquito Creek, Mud Creek, Piscasaw Creek, Piscasaw Creek, Piscasaw Creek, Spring Creek
| Race | Population |
| White |  50,127 |
| Black | 994 |
| Asian | 674 |
| Mixed | 562 |
| American Indian | 254 |
| Hawaiian & Pacific Islander | 6 |
| Additional population tables : | |
| State population table | |
| Illinois population by county | |