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 for | 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 | |
• Estimate (2021) | 20,758 |
| • Density | 46.3/sq mi (17.9/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.[1] As of 2020, the population was 20,758.[2] The county seat (and the county's only incorporated city) is Sullivan.[3]
Sullivan County is included in the Terre Haute, Indiana, metropolitan statistical area.
- ^ "Mean Center of Population for the United States: 1790 to 2000" (PDF). US Census Bureau. Archived from the original (PDF) on November 3, 2001. Retrieved September 17, 2011.
- ^ "Sullivan County QuickFacts". United States Census Bureau. Retrieved January 1, 2023.
- ^ "Find a County". National Association of Counties. Retrieved June 7, 2011.