Charleston County, South Carolina

Charleston County
Charleston County Courthouse
Charleston County Courthouse
Map of South Carolina highlighting Charleston County
Location within the U.S. state of South Carolina
Map of the United States highlighting South Carolina
South Carolina's location within the U.S.
Coordinates: 32°48′02″N 79°56′33″W / 32.800458°N 79.94248°W / 32.800458; -79.94248
Country United States
State South Carolina
FoundedJanuary 1, 1800
Named forKing Charles II
SeatCharleston
Largest communityCharleston
Area
 • Total1,357.99 sq mi (3,517.2 km2)
 • Land917.98 sq mi (2,377.6 km2)
 • Water440.01 sq mi (1,139.6 km2)  32.40%
Population
 (2020)
 • Total408,235
 • Density444.71/sq mi (171.70/km2)
Time zoneUTC−5 (Eastern)
 • Summer (DST)UTC−4 (EDT)
Congressional districts1st, 6th
Websitewww.charlestoncounty.org

Charleston County is a county in the U.S. state of South Carolina. As of the 2020 census, 408,235 people lived there,[1] making it the third-most populous county in South Carolina (after Greenville and Richland counties). Its county seat is Charleston.[2] The county was formed in 1901.

  1. "QuickFacts: Charleston County, South Carolina". United States Census Bureau. Retrieved January 20, 2024.
  2. National Association of Counties. "NACo County Explorer". Retrieved January 20, 2024.

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