Clark County, Ohio
Clark County | |
|---|---|
Location within the U.S. state of Ohio | |
Ohio's location within the U.S. | |
| Coordinates: 39°55′N 83°47′W / 39.92°N 83.78°W | |
| Country | United States |
| State | Ohio |
| Founded | March 1, 1818 |
| Named after | George Rogers Clark |
| Seat | Springfield |
| Largest city | Springfield |
| Area | |
• Total | 403 sq mi (1,040 km2) |
| • Land | 397 sq mi (1,030 km2) |
| • Water | 5.1 sq mi (13 km2) 1.3% |
| Population (2020) | |
• Total | 136,001 |
• Estimate (2023) | 134,610 |
| • Density | 340/sq mi (130/km2) |
| Time zone | UTC−5 (Eastern) |
| • Summer (DST) | UTC−4 (EDT) |
| Congressional districts | 10th, 15th |
| Website | www |
Clark County is a county located in the west central portion of the U.S. state of Ohio. As of the 2020 census, the population was 136,001. Its county seat and largest city is Springfield. The county was created on March 1, 1818, and was named for General George Rogers Clark, a hero of the American Revolution. Clark County comprises the Springfield, OH Metropolitan Statistical Area, which is also included in the Dayton-Springfield-Sidney-OH Combined Statistical Area.