Sullivan County, Indiana
39°05′N 87°25′W / 39.09°N 87.41°W
Sullivan County | |
|---|---|
Sullivan County Courthouse | |
Location within the U.S. state of Indiana | |
Indiana's location within the U.S. | |
| Coordinates: 39°05′N 87°25′W / 39.09°N 87.41°W | |
| Country | United States |
| State | Indiana |
| Founded | January 15, 1817 (created) February 1817 (organized) |
| Named after | General Daniel Sullivan |
| Seat | Sullivan |
| Largest city | Sullivan |
| Area | |
• Total | 454.12 sq mi (1,176.2 km2) |
| • Land | 447.14 sq mi (1,158.1 km2) |
| • Water | 6.97 sq mi (18.1 km2) 1.53% |
| Population (2020) | |
• Total | 20,817 |
• Estimate (2023) | 20,757 |
| • Density | 46/sq mi (18/km2) |
| Time zone | UTC−5 (Eastern) |
| • Summer (DST) | UTC−4 (EDT) |
| Congressional district | 8th |
| Website | www |
| Indiana county number 77 | |
Sullivan County is a county in the U.S. state of Indiana, and determined by the US Census Bureau to include the mean center of U.S. population in 1940. As of 2023, the population was estimated at 20,757. The county seat (and the county's only incorporated city) is Sullivan. Sullivan County is included in the Terre Haute metropolitan area.