Colleton County, South Carolina

"Colleton" redirects here. For other uses, see Colleton (disambiguation).

Colleton County, South Carolina
County
Colleton County Courthouse
Seal
Location within the U.S. state of South Carolina
Interactive map of Colleton County, South Carolina
Coordinates: 32.84°N 80.66°W / 32.84; -80.66
Country	United States
State	South Carolina
Founded	1800
Named after	Sir John Colleton, 1st Baronet
Seat	Walterboro
Largest community	Walterboro
Area
• Total	1,133.28 sq mi (2,935.2 km2)
• Land	1,056.50 sq mi (2,736.3 km2)
• Water	76.78 sq mi (198.9 km2)  6.78%
Population  (2020)
• Total	38,604
• Estimate  (2025)	39,382
• Density	36.540/sq mi (14.108/km2)
Time zone	UTC−5 (Eastern)
• Summer (DST)	UTC−4 (EDT)
Congressional districts	1st, 6th
Website	www.colletoncounty.org

Colleton County is a county in the Lowcountry region of the U.S. state of South Carolina. As of the 2020 census, the population was 38,604. Its county seat is Walterboro. The county is named after Sir John Colleton, 1st Baronet, one of the eight Lords Proprietor of the Province of Carolina. After two previous incarnations, the current Colleton County was created in 1800.