Hardin County Illinois - Government Site
Population: 4,585
Area: 178 square miles
County Seat: Elizabethtown
Area Code(s) in use: 618
Time Zone: CST
Adjacent counties:
Crittenden (KY) Gallatin Livingston (KY) Pope Saline Union (KY)
Airport
Stone Lra Airport
Basin
Big Sink
Cemetery
Adams Cemetery, Angleton Cemetery, Baldwin Cemetery, Beaver Cemetery, Brown Cemetery, Cave in Rock Cemetery, Coghill Cemetery, Cowsert Cemetery, Cowsert Cemetery, Critchlow Cemetery, Dixon Cemetery, Dutton Cemetery, Elizabethtown Cemetery, Empire Cemetery, Fellows Cemetery, Good Hope Cemetery, Griffith Cemetery, Hale Cemetery, Hall Cemetery, Hobbs Cemetery, Holbrook Cemetery, Hubbs Cemetery, Joyce Cemetery, Karber Cemetery, Lane Cemetery, Lavender Cemetery, Mathews Cemetery, McPherson Cemetery, Mount Zion Cemetery, Paris Cemetery, Peters Creek Cemetery, Pleasant Hill Cemetery, Price Cemetery, Pyle Cemetery, Pyles Cemetery, Reiner Cemetery, Rogers Cemetery, Rose Cemetery, Rose Cemetery, Rose Cemetery, Russell Cemetery, Rutherford Cemetery, Schutt Cemetery, Shephard Cemetery, Shewmaker Cemetery, Smyrna Cemetery, Sneed Cemetery, Soward Cemetery, Stone Church Cemetery, Stuby Cemetery, Tinsley Cemetery, Troutman Cemetery, Twitchell Cemetery, Waters Cemetery
Church
Antioch Church, Bethany Church, Central Church, Good Hope Church, Honeycomb Church, Karbers Ridge Church, Levee Pond Church, Mount Zion Church, Philadelphia Church, Pleasant Hill Church, Potter Church, Richland Church, Saint Joseph Church, Stone Church, Union Church, Yellow Springs Church
Civil
Cave-In-Rock Election Precinct, East Rosiclare Election Precinct, Hardin County, McFarlan Election Precinct, Monroe Election Precinct, Rock Election Precinct, Rosiclare Precinct, Stone Church Election Precinct, West Rosiclare Election Precinct
Cliff
Barker Bluff, Battery Rock
Crossing
Cave in Rock Ferry, Saline Tip Ferry (historical)
Dam
Dam Number 50, Humm Lake Dam, Illinois No Name Number 82 Dam, Whoopie Cat Dam
Forest
Kaskaskia Experimental Forest
Lake
Lake Tacumseh
Locale
Buzzards Roost, Camp Cadiz, Carmens Store (historical), Carrs Store (historical), Cave in Rock Recreation Site, Elizabethtown Ranger Station, Fraileys Store (historical), Gentry Landing, Hubbards Mill (historical), Hubbards Store (historical), Illinois Furnace (historical), Illinois Furnace Picnic Area, Iron Furnace Point of Interest, Jacksons Store (historical), Karbers Ridge Recreatrion Site, Martha Furnace (historical), Pankeys Store (historical), Parkinson Landing, Sellers Landing, Spees Landing, Tower Rock Camp and Picnic Area, Wolrab Mill (historical)
Mine
Alco Mine, Alcoa Mine, Argo Shaft Alcoa Mine, Austin Mine, Baker Mine, Buzzards Roost Shaft Alcoa Mine, Cobb Mine, Crystal Mine, Daisy Mine, Deardorff Mine, Defender Mine, Dimmick Mine, Dubois Mine, East Green Mine, Fairview Shaft Blue Diggings Mine, Good Hope Mine, Goose Creek Mine, Green Mine, Hamp Mine, Harp Mine, Hill Mine, Hillside Mine, Hoeb Mine, Humm Mine, Indiana Mines, Jefferson Mine, K and R Mine, Knox Shaft Rose Creek Mine, Last Chance Shaft Blue Diggings Mine, Lee Mine, Mahoning Mine, Mahoning Mines, Martin Mine, Minerva Mine Number 1, New Ghelia Shaft Rosiclare Mine, North Green Mine, Number 1 Shaft Eureka Mine, Number 6 Shaft Eureka Mine, Oxford Mine, Ozark Mahoning Mine, Pell Mine, Preen Mine, Recovery Shaft Rosiclare Mine, Ridge Mine, Rigsby Quarry, Rosiclare Mine, Rosiclare Mine, Sheldon Mine, South Boundary Shaft Rosiclare Mine, Stewart Mine, Stewart Shaft, Twitchell Mine, Victory Mine, West Green Mine, Yingling Shaft Rose Creek Mine
Park
Cave-In-Rock State Park
Populated Place
Cadiz, Cave-in-Rock, Eichorn, Elizabethtown, Fairview, Finneyville, Gross, Hicks, Humm Wye, Karbers Ridge, Lamb, Loves Corner, Mineral City (historical), Peters Creek, Rock Creek, Rosiclare, Saline Landing, Shetlerville, Sparks Hill, Stone
Post Office
Karbers Ridge Post Office, Sparks Hill Post Office (historical)
Reservoir
Humm Lake, Whoopie Cat Lake, Whoople Cat Lake
School
Basset School, Battery Rock School (historical), Big Creek School (historical), Brushy Fork School (historical), Double Box School (historical), Douglas School (historical), Hardin City School, Hicks Branch School, Karbers Ridge School, Keeling School, Lamb School (historical), Lambert School (historical), Love School (historical), McDowell School (historical), Oak Grove School (historical), Peters Creek School, Philadelphia School (historical), Richland School, Rock Creek School (historical), Saint Johns School (historical), Saint Josephs School (historical), Shewmaker School, Stone School (historical), Tower Rock School (historical), Union School (historical)
Spring
Decker Spring, Round Spring
Stream
Anthony Creek, Anthony Creek, Anthony Creek, Beaver Creek, Big Creek, Cane Creek, Goose Creek, Goose Creek, Haney Creek, Haney Creek, Haney Creek, Harris Creek, Hicks Branch, Hogthief Creek, Hosick Creek, Mud Creek, Peters Creek, Pinhook Creek, Rock Creek, Rose Creek, Sheridan Branch, Threemile Creek, Threemile Creek, Threemile Creek, Wallace Branch, Wallace Branch, Wallace Branch
Summit
Ace Perry Point, Beaver Hill, Belt Hill, Brokaw Hill, Brown Hill, Crow Hill, Hamilton Hill, Hicks Dome, Humm Hill, Keeling Hill, Lavender Hill, Lead Hill, Melcher Hills, Rich Hill, Sturgeon Hill, Tucker Hill
Tower
Peters Creek Lookout Tower
Trail
Beaver Trail, Hickory Ridge Trail, River to River Trail, River to River Trail
Valley
Blind Hollow, Buckhart Hollow, Holbrook Hollow, Hooven Hollow, Panther Hollow
| Race | Population |
| White |  4,403 |
| Black | 118 |
| Mixed | 27 |
| Asian | 26 |
| Hawaiian & Pacific Islander | 6 |
| American Indian | 5 |
| Additional population tables : | |
| State population table | |
| Illinois population by county | |