Clark County, Illinois
Clark County sits along Illinois’ eastern border next to Indiana, with Marshall serving as the county seat. This small community has a friendly, welcoming atmosphere that reflects the county’s rural character.
The Wabash River forms the county’s eastern boundary, while rolling hills break up the surrounding farmland. Lincoln Trail State Park is a popular local destination, offering opportunities for camping, hiking, and outdoor recreation.
Agriculture is a major part of Clark County’s economy, with corn, soybeans, and wheat among the leading crops. Oil wells can also be found in parts of the county, serving as reminders of the region’s earlier oil boom history.
| Category | Details |
|---|---|
| County Name | Clark County |
| County Seat | Marshall |
| Etymology | Named after George Rogers Clark, a Revolutionary War hero known for his service in the Illinois campaign. |
| Cities, Towns, and Communities | Marshall, Casey, Martinsville, Westfield, West Union, Dennison, Melrose, and various other unincorporated communities. |
| Interstates and Highways | Interstate 70, U.S. Highway 40, Illinois Route 1, Illinois Route 49 |
| FIPS Code | 17-023 |
| Total Area (Land and Water) | 505 square miles (land: 502 sq mi, water: 3 sq mi) |
| Adjacent Counties (and Direction) | Edgar County (North), Vigo County, Indiana (Northeast), Sullivan County, Indiana (Southeast), Crawford County (South), Jasper County (Southwest), Cumberland County (West), Coles County (Northwest) |
| Time Zone | Central Time Zone (CT) |
| State | Illinois |
| Coordinates | 39.3234° N, 87.7761° W |
| Major Landmarks | Lincoln Trail State Park, Mill Creek Park, Harlan Hall, Clark County Historical Museum |
| Population | Approximately 15,500 |
