Allendale County, South Carolina

Allendale County
Location within the U.S. state of South Carolina
South Carolina's location within the U.S.
Coordinates: 32°59′N 81°22′W / 32.98°N 81.36°W / 32.98; -81.36
Country United States
State South Carolina
Founded1919
Named afterPaul H. Allen
SeatAllendale
Largest communityAllendale
Area
  Total
412.42 sq mi (1,068.2 km2)
  Land408.10 sq mi (1,057.0 km2)
  Water4.32 sq mi (11.2 km2)  1.05%
Population
 (2020)
  Total
8,039
  Estimate 
(2023)
7,369
  Density19/sq mi (7.5/km2)
Time zoneUTC−5 (Eastern)
  Summer (DST)UTC−4 (EDT)
Congressional district6th
Websitewww.allendalecounty.com

Allendale County is a county located in the U.S. state of South Carolina. As of the 2020 census, the population was 8,039, making it the least populous county in South Carolina. Its county seat is Allendale.