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.

South CarolinaAll states All rankings

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%+1.8 pts

02Colleton County, SCSC39,38215.0%+2.3 pts

03Jasper County, SCSC38,53314.5%−1.2 pts

04Marion County, SCSC28,24213.7%−0.1 pts

05Marlboro County, SCSC25,48812.6%−2.9 pts

06Dillon County, SCSC27,45812.5%−0.6 pts

07Bamberg County, SCSC12,79612.4%+0.0 pts

08Laurens County, SCSC71,84812.4%+0.4 pts

09Barnwell County, SCSC20,65312.2%+0.8 pts

10Allendale County, SCSC7,35512.1%+0.4 pts

11Chester County, SCSC33,00111.7%+1.0 pts

12Horry County, SCSC427,55111.7%−2.1 pts

13Chesterfield County, SCSC44,74011.6%+0.1 pts

14Oconee County, SCSC83,77510.9%+0.0 pts

15Williamsburg County, SCSC29,66210.9%+0.9 pts

16Spartanburg County, SCSC380,85710.7%+0.3 pts

17Cherokee County, SCSC58,27510.5%−0.5 pts

18Sumter County, SCSC105,06710.5%−0.9 pts

19Union County, SCSC26,79910.5%+0.2 pts

20Lee County, SCSC15,73010.3%−0.1 pts

21Anderson County, SCSC219,93010.2%+0.0 pts

22Dorchester County, SCSC178,39710.2%−0.2 pts

23Hampton County, SCSC18,17410.1%−0.2 pts

24Abbeville County, SCSC24,83610.1%−1.5 pts

25Greenville County, SCSC583,12510.0%−0.4 pts

26Georgetown County, SCSC65,9129.8%−1.1 pts

27Orangeburg County, SCSC83,1779.7%−0.7 pts

28Florence County, SCSC138,5049.3%−0.5 pts

29Berkeley County, SCSC274,6669.2%−1.3 pts

30Clarendon County, SCSC31,0439.0%−1.3 pts

31Darlington County, SCSC62,8889.0%−0.1 pts

32Edgefield County, SCSC29,8089.0%+0.1 pts

33Newberry County, SCSC39,5618.8%−0.5 pts

34Aiken County, SCSC181,5158.8%−0.9 pts

35Lexington County, SCSC317,5888.7%−1.0 pts

36Richland County, SCSC434,9568.7%−0.6 pts

37Pickens County, SCSC139,1988.6%+0.0 pts

38Kershaw County, SCSC73,1668.6%−1.4 pts

39Beaufort County, SCSC204,4338.5%−0.9 pts

40Charleston County, SCSC436,2008.3%−2.0 pts

41Calhoun County, SCSC14,1888.1%−2.3 pts

42Lancaster County, SCSC114,2967.9%−0.5 pts

43York County, SCSC306,8877.6%−0.9 pts

44Greenwood County, SCSC70,3797.4%−2.7 pts

45Fairfield County, SCSC20,3407.0%−1.9 pts

46McCormick County, SCSC10,2153.5%−1.9 pts

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES