Population of Counties in South Carolina (2018)

Name 2018 Population Growth Since 2010
Greenville County506,83711.95%
Richland County411,5926.67%
Charleston County401,43814.36%
Horry County333,26823.23%
Spartanburg County306,8547.76%
Lexington County290,64210.38%
York County266,43917.44%
Berkeley County217,93721.77%
Anderson County198,7596.12%
Beaufort County186,84414.74%
Aiken County168,1794.77%
Dorchester County156,45613.81%
Florence County138,5661.10%
Pickens County123,4793.60%
Sumter County106,847-0.69%
Lancaster County92,55020.24%
Orangeburg County87,476-5.23%
Oconee County77,2703.94%
Greenwood County70,3550.88%
Darlington County67,265-1.95%
Laurens County66,8480.48%
Kershaw County65,0365.44%
Georgetown County61,6072.38%
Cherokee County57,1052.86%
Chesterfield County45,948-1.46%
Newberry County38,4882.33%
Colleton County37,611-3.30%
Clarendon County34,057-2.60%
Chester County32,301-2.55%
Marion County31,293-5.05%
Williamsburg County31,133-9.37%
Dillon County30,666-4.41%
Jasper County28,45814.15%
Union County27,537-4.80%
Marlboro County26,825-7.23%
Edgefield County26,693-1.06%
Abbeville County24,722-2.39%
Fairfield County22,607-5.16%
Barnwell County21,345-5.71%
Saluda County20,4522.70%
Hampton County19,602-6.98%
Lee County17,350-9.72%
Calhoun County14,704-2.58%
Bamberg County14,381-9.96%
McCormick County9,545-6.54%
Allendale County9,002-13.06%