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. The median across all 46 is 5,747.

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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%

03▲2Spartanburg County, SCSC380,85736,913+15%

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

05▼2Charleston 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%

10▲1Dorchester County, SCSC178,39716,680+2%

11▼1Beaufort County, SCSC204,43315,756−8%

12Aiken County, SCSC181,51515,118−7%

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

14▲1Pickens County, SCSC139,19811,546+8%

15▼1Sumter County, SCSC105,06710,389−10%

16▲1Oconee County, SCSC83,7758,741+3%

17▲1Laurens County, SCSC71,8488,366+6%

18▲1Lancaster County, SCSC114,2968,066+3%

19▼3Orangeburg County, SCSC83,1778,034−10%

20▲1Georgetown County, SCSC65,9126,327−6%

21▲2Cherokee County, SCSC58,2755,896−6%

22Kershaw County, SCSC73,1665,821−11%

23▲3Colleton County, SCSC39,3825,747+23%

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

25▼5Greenwood County, SCSC70,3795,054−28%

26▼1Chesterfield County, SCSC44,7405,030−4%

27Jasper County, SCSC38,5334,463−2%

28Marion County, SCSC28,2423,892−8%

29▲3Chester County, SCSC33,0013,755+9%

30▼1Dillon County, SCSC27,4583,452−12%

31▲3Saluda County, SCSC19,6803,375+5%

32▼1Newberry County, SCSC39,5613,350−4%

33▲2Williamsburg County, SCSC29,6623,118+6%

34▼4Marlboro County, SCSC25,4882,975−19%

35▲2Union County, SCSC26,7992,7740%

36▼3Clarendon County, SCSC31,0432,659−20%

37▼1Abbeville County, SCSC24,8362,462−13%

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

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

40▲1Hampton County, SCSC18,1741,808−2%

41▲1Bamberg County, SCSC12,7961,601−8%

42▲1Lee County, SCSC15,7301,540−6%

43▼3Fairfield County, SCSC20,3401,415−29%

44Calhoun County, SCSC14,1881,138−25%

45Allendale County, SCSC7,355824−9%

46McCormick County, SCSC10,215314−31%

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES