RANKING · 2020 CENSUS · 46 SHOWN OF 46

Most population gained, South Carolina counties · 2020

South Carolina counties that added the most residents from the 2010 census to 2020, by raw count of people rather than percentage. This list covers the 46 counties in South Carolina that qualify, ranked against each other statewide.

Flip the list · Most population lost, US counties →

South CarolinaAll states All rankings

SAME RANKING BYCities States Metros

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION CHANGEVS 2000

01Horry County, SCSC427,551+81,738+55%

02Greenville County, SCSC583,125+74,309+25%

03Charleston County, SCSC436,200+58,026+289%

04York County, SCSC306,887+56,017+69%

05Berkeley County, SCSC274,666+52,018+275%

06Spartanburg County, SCSC380,857+43,690+62%

07Richland County, SCSC434,956+31,643−9%

08Lexington County, SCSC317,588+31,600−35%

09Dorchester County, SCSC178,397+24,985+87%

10Beaufort County, SCSC204,433+24,884−28%

11Lancaster County, SCSC114,296+19,364+183%

12Anderson County, SCSC219,930+16,592−19%

13Pickens County, SCSC139,198+12,180−28%

14Aiken County, SCSC181,515+8,709−60%

15Oconee County, SCSC83,775+4,334−50%

16Jasper County, SCSC38,533+4,014−23%

17Kershaw County, SCSC73,166+3,706−59%

18Georgetown County, SCSC65,912+3,246−66%

19Laurens County, SCSC71,848+1,002−91%

20Cherokee County, SCSC58,275+874−89%

21Newberry County, SCSC39,561+211−93%

22Florence County, SCSC138,504+174−98%

23Colleton County, SCSC39,382-288−107%

24Greenwood County, SCSC70,379-310−105%

25McCormick County, SCSC10,215-707−165%

26Chester County, SCSC33,001-846−145%

27Saluda County, SCSC19,680-1,013−136%

28Calhoun County, SCSC14,188-1,056−143%

29Abbeville County, SCSC24,836-1,122−149%

30Edgefield County, SCSC29,808-1,328−121%

31Union County, SCSC26,799-1,717+277%

32Sumter County, SCSC105,067-1,900−195%

33Barnwell County, SCSC20,653-2,032−164%

34Marlboro County, SCSC25,488-2,266+317%

35Allendale County, SCSC7,355-2,380+366%

36Hampton County, SCSC18,174-2,529−179%

37Bamberg County, SCSC12,796-2,676+997%

38Lee County, SCSC15,730-2,689−260%

39Fairfield County, SCSC20,340-3,008−360%

40Williamsburg County, SCSC29,662-3,397−945%

41Chesterfield County, SCSC44,740-3,461−183%

42Dillon County, SCSC27,458-3,770−334%

43Clarendon County, SCSC31,043-3,827−194%

44Marion County, SCSC28,242-3,879−348%

45Darlington County, SCSC62,888-5,776−204%

46Orangeburg County, SCSC83,177-8,278−222%

SHOWING 1–46 OF 46

Download CSV (full list, 46 rows)

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