RANKING · 2025 ESTIMATES · 46 SHOWN OF 46

Most population gained, South Carolina counties

South Carolina counties that added the most residents from the 2020 census to 2025, by raw count of people rather than percentage. 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

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION CHANGEVS 2000

01Horry County, SCSC427,551+76,522+46%

02Greenville County, SCSC583,125+57,591−3%

03Spartanburg County, SCSC380,857+52,860+96%

04Berkeley County, SCSC274,666+44,805+223%

05Charleston County, SCSC436,200+27,965+87%

06York County, SCSC306,887+24,797−25%

07Lexington County, SCSC317,588+23,597−51%

08Richland County, SCSC434,956+18,809−46%

09Lancaster County, SCSC114,296+18,280+167%

10Beaufort County, SCSC204,433+17,316−50%

11Dorchester County, SCSC178,397+16,857+26%

12Anderson County, SCSC219,930+16,212−21%

13Aiken County, SCSC181,515+12,707−41%

14Jasper County, SCSC38,533+9,742+88%

15Pickens County, SCSC139,198+7,794−54%

16Kershaw County, SCSC73,166+7,763−14%

17Oconee County, SCSC83,775+5,168−41%

18Laurens County, SCSC71,848+4,309−62%

19Edgefield County, SCSC29,808+4,151−33%

20Georgetown County, SCSC65,912+2,508−74%

21Cherokee County, SCSC58,275+2,059−74%

22Newberry County, SCSC39,561+1,842−37%

23Chesterfield County, SCSC44,740+1,467−65%

24Florence County, SCSC138,504+1,445−87%

25Greenwood County, SCSC70,379+1,028−85%

26Saluda County, SCSC19,680+818−71%

27Colleton County, SCSC39,382+778−80%

28Chester County, SCSC33,001+707−63%

29McCormick County, SCSC10,215+689−37%

30Abbeville County, SCSC24,836+541−77%

31Calhoun County, SCSC14,188+69−97%

32Barnwell County, SCSC20,653+64−98%

33Darlington County, SCSC62,888-17−100%

34Clarendon County, SCSC31,043-101−102%

35Hampton County, SCSC18,174-387−112%

36Union County, SCSC26,799-445−2%

37Sumter County, SCSC105,067-489−124%

38Bamberg County, SCSC12,796-515+111%

39Fairfield County, SCSC20,340-608−152%

40Allendale County, SCSC7,355-684+34%

41Lee County, SCSC15,730-801−148%

42Dillon County, SCSC27,458-834−152%

43Marion County, SCSC28,242-941−160%

44Orangeburg County, SCSC83,177-1,046−115%

45Marlboro County, SCSC25,488-1,179+117%

46Williamsburg County, SCSC29,662-1,364−439%

SHOWING 1–46 OF 46

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU POPULATION ESTIMATES