RANKING · 2024 ACS · 46 SHOWN OF 46

Most uninsured people, South Carolina counties

South Carolina counties with the most residents lacking health insurance, as of the 2024 American Community Survey. Ranked by number of people, not the uninsured rate. 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

RELATEDLargest foreign-born population Most residents with a disability Largest veteran population Largest senior population Most unmarried people Most unmarried men

RANKPLACESTATEPOPUNINSURED RESIDENTSVS 2020

01Greenville County, SCSC583,12554,468+2%

02Horry County, SCSC427,55144,420−6%

03Spartanburg County, SCSC380,85736,913+15%

04Richland County, SCSC434,95634,898−4%

05Charleston County, SCSC436,20034,200−17%

06Lexington County, SCSC317,58826,159−8%

07York County, SCSC306,88722,244−4%

08Berkeley County, SCSC274,66621,976−3%

09Anderson County, SCSC219,93021,293+5%

10Dorchester County, SCSC178,39716,680+2%

11Beaufort County, SCSC204,43315,756−8%

12Aiken County, SCSC181,51515,118−7%

13Florence County, SCSC138,50412,544−7%

14Pickens County, SCSC139,19811,546+8%

15Sumter County, SCSC105,06710,389−10%

16Oconee County, SCSC83,7758,741+3%

17Laurens County, SCSC71,8488,366+6%

18Lancaster County, SCSC114,2968,066+3%

19Orangeburg County, SCSC83,1778,034−10%

20Georgetown County, SCSC65,9126,327−6%

21Cherokee County, SCSC58,2755,896−6%

22Kershaw County, SCSC73,1665,821−11%

23Colleton County, SCSC39,3825,747+23%

24Darlington County, SCSC62,8885,587−7%

25Greenwood County, SCSC70,3795,054−28%

26Chesterfield County, SCSC44,7405,030−4%

27Jasper County, SCSC38,5334,463−2%

28Marion County, SCSC28,2423,892−8%

29Chester County, SCSC33,0013,755+9%

30Dillon County, SCSC27,4583,452−12%

31Saluda County, SCSC19,6803,375+5%

32Newberry County, SCSC39,5613,350−4%

33Williamsburg County, SCSC29,6623,118+6%

34Marlboro County, SCSC25,4882,975−19%

35Union County, SCSC26,7992,774+0%

36Clarendon County, SCSC31,0432,659−20%

37Abbeville County, SCSC24,8362,462−13%

38Barnwell County, SCSC20,6532,459+3%

39Edgefield County, SCSC29,8082,280+4%

40Hampton County, SCSC18,1741,808−2%

41Bamberg County, SCSC12,7961,601−8%

42Lee County, SCSC15,7301,540−6%

43Fairfield County, SCSC20,3401,415−29%

44Calhoun County, SCSC14,1881,138−25%

45Allendale County, SCSC7,355824−9%

46McCormick County, SCSC10,215314−31%

SHOWING 1–46 OF 46

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES