Charleston County, South Carolina ||This article needs
additional citations for verification. (June 2007)| |Charleston
County, South Carolina| Location in the state of South Carolina
South Carolina's location in the U.S. 1,358 sq mi (3,517 km²)
919 sq mi (2,380 km²) 440 sq mi (1,140 km²), 32.37% 381/sq mi
(147.1/km²) Charleston County is a county located in the U.S.
state of South Carolina. As of the 2010 census, its population
was 350,209. Its county seat is Charleston. It is the third-most
populous county in the state (behind Greenville and Richland
counties). Charleston County was created in 1901 by an act of
the South Carolina State Legislature. As defined by the U.S.
Office of Management and Budget, and used by the U.S. Census
Bureau for statistical purposes only, Charleston County is
included within the Charleston-North Charleston-Summerville
metropolitan area. According to the U.S. Census Bureau, the
county has a total area of 1,358 square miles (3,517.2 km2), the
largest county in South Carolina, of w