Henderson County Illinois - Government Site
Population: 7,819
Area: 379 square miles
County Seat: Oquawka
Area Code(s) in use: 309 217
Time Zone: CST
Adjacent counties:
Des Moines (IA) Hancock Lee (IA) McDonough Mercer Warren
Airport
Carner Landing Strip, Clover Landing Strip, Corzatt Airport, Earl J Meyer Airport, Johnson Farm Airport, Meyer Landing Strip, Neff Airport, Seymour Landing Strip, Shissler Seed Company Incorporated Airport
Bar
Charcoal Bar, Ellison Bar, Honey Creek Bar, Moore Bar, Shok Bar, Willow Bar, Willow Bar
Basin
Mooney Pocket
Bay
Benton Bay
Bridge
Davenport Bridge, Oquawka Wagon Covered Bridge
Canal
Ellison Creek Diverson Ditch
Cape
Pin Oak Point
Cemetery
Adair Cemetery, Belmont Cemetery, Best Cemetery, Biggsville Cemetery, Bruen Cemetery, Carman Cemetery, Clover Cemetery, Coghill Cemetery, County Farm Cemetery, Crane Cemetery, Cumberland Cemetery, Cumberland Presbyterian Cemetery, Curts Cemetery, Dallas City Cemetery, Davidson Cemetery, Davison Family Cemetery, Fall Creek Cemetery, Freeland Cemetery, Henderson Cemetery, Hopper Cemetery, Huss Cemetery, Kemp Cemetery, Maple Grove Cemetery, Maple Grove Cemetery, Nichols Cemetery, Olena Cemetery, Oquawka Cemetery, Peasley Cemetery, Prairie City Cemetery, Raritan Cemetery, Reed Cemetery, Rozetta Cemetery, Saint Patrick's Cemetery, Salter's Grove Cemetery, Shaw Cemetery, Smith Creek Cemetery, South Henderson Cemetery, South Prarie Cemetery, Stockton Cemetery, Stronghurst Cemetery, Terre Haute Cemetery, Walnut Grove Cemetery, Walnut Grove Cemetery, Watson Cemetery, Watson Cemetery
Channel
Jordan Chute, Lower Cutoff
Church
Belmont Church, Biggsville United Methodist Church, Biggsville United Presbyterian Church, Fall Creek Church, Gladstone United Methodist Church, Saint Patricks Church, South Henderson Church
Civil
Henderson County, Township of Bald Bluff, Township of Biggsville, Township of Carman, Township of Gladstone, Township of Lomax, Township of Media, Township of Oquawka, Township of Raritan, Township of Rozetta, Township of Stronghurst, Township of Terre Haute
Cliff
Bald Bluff
Dam
Carner Lake Dam, Dowell Lake Dam, Kissinger Lake Dam, Lock and Dam Number 18, Norris Lake Dam, Sediment Control Structure Pond Number 22 Dam, Young-Gibson Lake Dam
Forest
Big River State Forest
Gut
Bass Run, Benton Slough, Campbell Slough, Craigel Slough, Marsden Slough, Mill Slough, Old Channel Henderson Creek, Phelps Slough, Prairie Slough, Shokokon Slough, Sullivan Slough, Turkey Chute
Island
Beaver Island, Benton Island, Big Dasher Island, Big Dasher Island, Burlington Island, Clifford Island, Craigel Island, Dallas Island, Harper Island, Mill Island, Paddy Island, Turkey Island, Twomile Island
Lake
Brush Lake, Burnt Pocket, Carthage Lake, Clear Lake, Crystal Lake, Dutton Lake, Fish Lake, Gladstone Lake, Goose Lake, Goose Pond, Goose Pond, Grassy Pond, Island Lake, Lily Lake, Long Lake, Millman Lake, Orchard City Lake, Pogue Lake, Rhodes Lake, Silver Lake, Snag Lake, Spring Slough, Stony Point Lake, The Swamps, Vaughn Lake (historical), Whitehouse Lake
Locale
Carthage Junction, Great Oaks Picnic Area, Hend-Co Hills Country Club, Henderson County Farm (historical), Little Deer Picnic Area, Putneys Landing, Sands Picnic Area, Sunset Picnic Area, Twin Lakes
Mine
Biggsville Quarry, Dallas City Quarry
Park
Delabar State Park, Henderson State County Conservation Area, Oquawka State Wildlife Refuge, Riverview Access Area
Populated Place
Bald Bluff, Biggsville, Carman, Carthage Lake, Decorra, Gladstone, Gulfport, Heapsville, Hopper, Iowa Junction, Lomax, Lone Tree, Media, Milroy, Olena, Oquawka, Raritan, Reeds, Rozetta, Shokokon, Silver Lake (historical), Stronghurst, Terre Haute, Yellow Banks
Post Office
Carman Post Office
Reservoir
Carner Lake, Dowell Lake, Kissinger Lake, Norris Lake, Sediment Control Structure Pond Number 22, Young-Gibson Lake
School
Aurora School (historical), Bald Bluff School (historical), Barry School (historical), Bedford School (historical), Belmont School (historical), Bluffdale School (historical), Burrell School (historical), Cedar Oak School (historical), Cedar Ridge School (historical), Centerville School (historical), Centerville School (historical), Chandler School (historical), Coloma School (historical), Cork School (historical), Cox School (historical), Crystal Lake School (historical), Douglas School (historical), Duck Pond School (historical), Dutch Row School (historical), Ellison School (historical), Ellison Valley School (historical), Fairview School (historical), Fitz School (historical), Gearhart School (historical), Graham School (historical), Grove Hill School (historical), Harmony School (historical), Hazel Dell School (historical), Heisler School (historical), Henderson School (historical), Kirby School (historical), Little Brick School (historical), Lynnville School (historical), Maple Grove School (historical), Maple Grove School (historical), McCartney School (historical), Merry Dell School (historical), Millville School (historical), Old Number 1 School (historical), Peasley School (historical), Pleasant Grove School (historical), Pleasant Hill School (historical), Pogue School (historical), Prairie School (historical), Rankin School (historical), Record School (historical), Smith School (historical), South Prairie School (historical), South Prairie School (historical), South School (historical), Southern Elementary School, Southern High School, Southern Junior High School, Stanley School (historical), Stine School (historical), Stone School (historical), Sunny Grove School (historical), Sunny Ridge School (historical), Tiwappity School (historical), Twentieth Century School (historical), Union High School
Stream
Camp Creek, Deep Run, Dixson Creek, Dugout Creek, Ellison Creek, Fall Creek, Goose Run, Henderson Creek, Honey Creek, Little Dugout Creek, Marshall Branch, Middle Creek, Nichols Run, North Henderson Creek, Old Tom Creek, Silver Creek, Smith Creek, South Fork South Henderson Creek, South Henderson Creek, Weaver Branch, Wolf Creek
Summit
Gittings Mound
Valley
Bogus Hollow, Jinks Hollow
| Race | Population |
| White |  7,701 |
| Mixed | 57 |
| Black | 30 |
| American Indian | 17 |
| Asian | 11 |
| Hawaiian & Pacific Islander | 3 |
| Additional population tables : | |
| State population table | |
| Illinois population by county | |