Colleton County, South Carolina

Colleton County, South Carolina
Location within the U.S. state of South Carolina
Interactive map of Colleton County, South Carolina
Coordinates: 32°50′N 80°40′W / 32.84°N 80.66°W / 32.84; -80.66
Country United States
State South Carolina
Founded1800
Named afterSir John Colleton, 1st Baronet
SeatWalterboro
Largest communityWalterboro
Area
 • Total
1,133.28 sq mi (2,935.2 km2)
 • Land1,056.50 sq mi (2,736.3 km2)
 • Water76.78 sq mi (198.9 km2)  6.78%
Population
 (2020)
 • Total
38,604
 • Estimate 
(2024)
39,259
 • Density36.540/sq mi (14.108/km2)
Time zoneUTC−5 (Eastern)
 • Summer (DST)UTC−4 (EDT)
Congressional districts1st, 6th
Websitewww.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.