RANKING · 2024 ACS · 46 SHOWN OF 46

Highest uninsured rate, South Carolina counties

South Carolina counties ranked by the share of residents without health insurance (2024 ACS). 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 ZIP codes

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

YEAR2020 2024

RANKPLACESTATEPOPUNINSUREDVS 2020

01Saluda County, SCSC19,68017.9%+11%

02Colleton County, SCSC39,38215.0%+18%

03Jasper County, SCSC38,53314.5%−8%

04Marion County, SCSC28,24213.7%−1%

05Marlboro County, SCSC25,48812.6%−19%

06Dillon County, SCSC27,45812.5%−5%

07Bamberg County, SCSC12,79612.4%+0%

08Laurens County, SCSC71,84812.4%+3%

09Barnwell County, SCSC20,65312.2%+7%

10Allendale County, SCSC7,35512.1%+3%

11Chester County, SCSC33,00111.7%+9%

12Horry County, SCSC427,55111.7%−15%

13Chesterfield County, SCSC44,74011.6%+1%

14Oconee County, SCSC83,77510.9%+0%

15Williamsburg County, SCSC29,66210.9%+9%

16Spartanburg County, SCSC380,85710.7%+3%

17Cherokee County, SCSC58,27510.5%−5%

18Sumter County, SCSC105,06710.5%−8%

19Union County, SCSC26,79910.5%+2%

20Lee County, SCSC15,73010.3%−1%

21Anderson County, SCSC219,93010.2%+0%

22Dorchester County, SCSC178,39710.2%−2%

23Hampton County, SCSC18,17410.1%−2%

24Abbeville County, SCSC24,83610.1%−13%

25Greenville County, SCSC583,12510.0%−4%

26Georgetown County, SCSC65,9129.8%−10%

27Orangeburg County, SCSC83,1779.7%−7%

28Florence County, SCSC138,5049.3%−5%

29Berkeley County, SCSC274,6669.2%−12%

30Clarendon County, SCSC31,0439.0%−13%

31Darlington County, SCSC62,8889.0%−1%

32Edgefield County, SCSC29,8089.0%+1%

33Newberry County, SCSC39,5618.8%−5%

34Aiken County, SCSC181,5158.8%−9%

35Lexington County, SCSC317,5888.7%−10%

36Richland County, SCSC434,9568.7%−6%

37Pickens County, SCSC139,1988.6%+0%

38Kershaw County, SCSC73,1668.6%−14%

39Beaufort County, SCSC204,4338.5%−10%

40Charleston County, SCSC436,2008.3%−19%

41Calhoun County, SCSC14,1888.1%−22%

42Lancaster County, SCSC114,2967.9%−6%

43York County, SCSC306,8877.6%−11%

44Greenwood County, SCSC70,3797.4%−27%

45Fairfield County, SCSC20,3407.0%−21%

46McCormick County, SCSC10,2153.5%−35%

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