RANKING · 2025 ESTIMATES · 46 SHOWN OF 46

Largest by population, South Carolina counties

The most populous South Carolina counties as of the 2025 population estimates. This list covers the 46 counties in South Carolina that qualify, ranked against each other statewide. The median across all 46 is 62,888. Biggest climber in the top 100 since 2020: Edgefield County, SC, up 5 places to #31.

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SAME RANKING BYCities States Metros ZIP codes

RELATEDFastest growing Fastest shrinking Most population gained Most population lost Most densely populated Most sparsely populated

YEAR1990 2000 2010 2020 2025

RANKPLACESTATETOTAL POPULATIONVS 2000

01Greenville County, SCSC583,125+54%

02▲1Charleston County, SCSC436,200+41%

03▼1Richland County, SCSC434,956+36%

04Horry County, SCSC427,551+117%

05Spartanburg County, SCSC380,857+50%

06Lexington County, SCSC317,588+47%

07York County, SCSC306,887+86%

08Berkeley County, SCSC274,666+93%

09Anderson County, SCSC219,930+33%

10Beaufort County, SCSC204,433+69%

11Aiken County, SCSC181,515+27%

12Dorchester County, SCSC178,397+85%

13▲1Pickens County, SCSC139,198+26%

14▼1Florence County, SCSC138,504+10%

15▲1Lancaster County, SCSC114,296+86%

16▼1Sumter County, SCSC105,0670%

17▲1Oconee County, SCSC83,775+27%

18▼1Orangeburg County, SCSC83,177−9%

19▲2Kershaw County, SCSC73,166+39%

20Laurens County, SCSC71,848+3%

21▼2Greenwood County, SCSC70,379+6%

22Georgetown County, SCSC65,912+18%

23Darlington County, SCSC62,888−7%

24Cherokee County, SCSC58,275+11%

25Chesterfield County, SCSC44,740+5%

26▲1Newberry County, SCSC39,561+10%

27▼1Colleton County, SCSC39,382+3%

28▲4Jasper County, SCSC38,533+86%

29▼1Chester County, SCSC33,001−3%

30▼1Clarendon County, SCSC31,043−4%

31▲5Edgefield County, SCSC29,808+21%

32▼2Williamsburg County, SCSC29,662−20%

33▼2Marion County, SCSC28,242−20%

34▼1Dillon County, SCSC27,458−11%

35▼1Union County, SCSC26,799−10%

36▼1Marlboro County, SCSC25,488−12%

37Abbeville County, SCSC24,836−5%

38▲1Barnwell County, SCSC20,653−12%

39▼1Fairfield County, SCSC20,340−13%

40Saluda County, SCSC19,680+3%

41Hampton County, SCSC18,174−15%

42Lee County, SCSC15,730−22%

43Calhoun County, SCSC14,188−7%

44Bamberg County, SCSC12,796−23%

45McCormick County, SCSC10,215+3%

46Allendale County, SCSC7,355−34%

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU POPULATION ESTIMATES