RANKING · 2025 ESTIMATES · 46 SHOWN OF 46

Most sparsely populated, South Carolina counties

South Carolina counties with the fewest residents per square mile (2025). This list covers the 46 counties in South Carolina that qualify, ranked against each other statewide. The median across all 46 is 81.

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SAME RANKING BYCities States Metros

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS 2000

01Allendale County, SCSC7,35518−34%

02McCormick County, SCSC10,21528+3%

03Fairfield County, SCSC20,34030−13%

04▲1Williamsburg County, SCSC29,66232−20%

05▼1Hampton County, SCSC18,17432−15%

06Bamberg County, SCSC12,79633−23%

07▲1Calhoun County, SCSC14,18837−7%

08▼1Colleton County, SCSC39,38237+3%

09Barnwell County, SCSC20,65338−12%

10Lee County, SCSC15,73038−22%

11Saluda County, SCSC19,68043+3%

12▲1Abbeville County, SCSC24,83651−5%

13▲2Clarendon County, SCSC31,04351−4%

14▲2Union County, SCSC26,79952−10%

15▲3Marlboro County, SCSC25,48853−12%

16▲1Chesterfield County, SCSC44,74056+5%

17▲2Chester County, SCSC33,00157−3%

18▲2Marion County, SCSC28,24258−20%

19▼7Jasper County, SCSC38,53359+86%

20▼6Edgefield County, SCSC29,80860+21%

21Newberry County, SCSC39,56163+10%

22Dillon County, SCSC27,45868−11%

23Orangeburg County, SCSC83,17775−9%

24Georgetown County, SCSC65,91281+18%

25Kershaw County, SCSC73,166101+39%

26Laurens County, SCSC71,848101+3%

27Darlington County, SCSC62,888112−7%

28Oconee County, SCSC83,775134+27%

29Cherokee County, SCSC58,275148+11%

30Greenwood County, SCSC70,379154+6%

31▲1Sumter County, SCSC105,0671580%

32▼1Aiken County, SCSC181,515170+27%

33Florence County, SCSC138,504173+10%

34Lancaster County, SCSC114,296208+86%

35Berkeley County, SCSC274,666249+93%

36Pickens County, SCSC139,198280+26%

37▲1Anderson County, SCSC219,930308+33%

38▼1Dorchester County, SCSC178,397314+85%

39▲1Beaufort County, SCSC204,433355+69%

40▼1Horry County, SCSC427,551377+117%

41▲1York County, SCSC306,887451+86%

42▲1Lexington County, SCSC317,588454+47%

43▼2Spartanburg County, SCSC380,857471+50%

44Charleston County, SCSC436,200475+41%

45Richland County, SCSC434,956574+36%

46Greenville County, SCSC583,125742+54%

SHOWING 1–46 OF 46

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