RANKING · 2020 CENSUS · 46 SHOWN OF 46

Largest by population, South Carolina counties · 2020

The most populous South Carolina counties as of the 2020 population estimates. This list covers the 46 counties in South Carolina that qualify, ranked against each other statewide.

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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, SCSC525,534+38%

02Richland County, SCSC416,147+30%

03Charleston County, SCSC408,235+32%

04Horry County, SCSC351,029+79%

05Spartanburg County, SCSC327,997+29%

06Lexington County, SCSC293,991+36%

07York County, SCSC282,090+71%

08Berkeley County, SCSC229,861+61%

09Anderson County, SCSC203,718+23%

10Beaufort County, SCSC187,117+55%

11Aiken County, SCSC168,808+18%

12Dorchester County, SCSC161,540+68%

13Florence County, SCSC137,059+9%

14Pickens County, SCSC131,404+19%

15Sumter County, SCSC105,556+1%

16Lancaster County, SCSC96,016+57%

17Orangeburg County, SCSC84,223−8%

18Oconee County, SCSC78,607+19%

19Greenwood County, SCSC69,351+5%

20Laurens County, SCSC67,539−3%

21Kershaw County, SCSC65,403+24%

22Georgetown County, SCSC63,404+14%

23Darlington County, SCSC62,905−7%

24Cherokee County, SCSC56,216+7%

25Chesterfield County, SCSC43,273+1%

26Colleton County, SCSC38,604+1%

27Newberry County, SCSC37,719+4%

28Chester County, SCSC32,294−5%

29Clarendon County, SCSC31,144−4%

30Williamsburg County, SCSC31,026−17%

31Marion County, SCSC29,183−18%

32Jasper County, SCSC28,791+39%

33Dillon County, SCSC28,292−8%

34Union County, SCSC27,244−9%

35Marlboro County, SCSC26,667−7%

36Edgefield County, SCSC25,657+4%

37Abbeville County, SCSC24,295−7%

38Fairfield County, SCSC20,948−11%

39Barnwell County, SCSC20,589−12%

40Saluda County, SCSC18,862−2%

41Hampton County, SCSC18,561−13%

42Lee County, SCSC16,531−18%

43Calhoun County, SCSC14,119−7%

44Bamberg County, SCSC13,311−20%

45McCormick County, SCSC9,526−4%

46Allendale County, SCSC8,039−28%

SHOWING 1–46 OF 46

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS