Barnwell County, South Carolina
Barnwell County, South Carolina | |
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Barnwell County Courthouse | |
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Seal Logo | |
Location within the U.S. state of South Carolina | |
Interactive map of Barnwell County, South Carolina | |
| Coordinates: 33°16′N 81°26′W / 33.26°N 81.43°W | |
| Country | United States |
| State | South Carolina |
| Founded | 1800 |
| Named after | John Barnwell |
| Seat | Barnwell |
| Largest community | Barnwell |
| Area | |
• Total | 557.26 sq mi (1,443.3 km2) |
| • Land | 548.38 sq mi (1,420.3 km2) |
| • Water | 8.88 sq mi (23.0 km2) 1.59% |
| Population (2020) | |
• Total | 20,589 |
• Estimate (2024) | 20,495 |
| • Density | 37.545/sq mi (14.496/km2) |
| Time zone | UTC−5 (Eastern) |
| • Summer (DST) | UTC−4 (EDT) |
| Congressional district | 2nd |
| Website | www |
Barnwell County is a county in the U.S. state of South Carolina. As of the 2020 census, its population was 20,589. It is located in the Central Savannah River Area. Its county seat is Barnwell.