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. The median across all 46 is 10.1%. Biggest climber in the top 100 since 2020: Williamsburg County, SC, up 17 places to #15.

South CarolinaAll states All rankings

SAME RANKING BYCities States Metros ZIP codes

YEAR2020 2024

RANKPLACESTATEPOPUNINSUREDVS 2020

01Saluda County, SCSC19,68017.9%+1.8 pts

02▲5Colleton County, SCSC39,38215.0%+2.3 pts

03▼1Jasper County, SCSC38,53314.5%−1.2 pts

04▲1Marion County, SCSC28,24213.7%−0.1 pts

05▼2Marlboro County, SCSC25,48812.6%−2.9 pts

06Dillon County, SCSC27,45812.5%−0.6 pts

07▲1Bamberg County, SCSC12,79612.4%0.0 pts

08▲1Laurens County, SCSC71,84812.4%+0.4 pts

09▲4Barnwell County, SCSC20,65312.2%+0.8 pts

10Allendale County, SCSC7,35512.1%+0.4 pts

11▲7Chester County, SCSC33,00111.7%+1.0 pts

12▼8Horry County, SCSC427,55111.7%−2.1 pts

13▼1Chesterfield County, SCSC44,74011.6%+0.1 pts

14▲3Oconee County, SCSC83,77510.9%0.0 pts

15▲17Williamsburg County, SCSC29,66210.9%+0.9 pts

16▲7Spartanburg County, SCSC380,85710.7%+0.3 pts

17▼2Cherokee County, SCSC58,27510.5%−0.5 pts

18▼4Sumter County, SCSC105,06710.5%−0.9 pts

19▲9Union County, SCSC26,79910.5%+0.2 pts

20▲2Lee County, SCSC15,73010.3%−0.1 pts

21▲9Anderson County, SCSC219,93010.2%0.0 pts

22▲2Dorchester County, SCSC178,39710.2%−0.2 pts

23▲4Hampton County, SCSC18,17410.1%−0.2 pts

24▼13Abbeville County, SCSC24,83610.1%−1.5 pts

25▼4Greenville County, SCSC583,12510.0%−0.4 pts

26▼10Georgetown County, SCSC65,9129.8%−1.1 pts

27▼2Orangeburg County, SCSC83,1779.7%−0.7 pts

28▲6Florence County, SCSC138,5049.3%−0.5 pts

29▼10Berkeley County, SCSC274,6669.2%−1.3 pts

30▼4Clarendon County, SCSC31,0439.0%−1.3 pts

31▲9Darlington County, SCSC62,8889.0%−0.1 pts

32▲9Edgefield County, SCSC29,8089.0%+0.1 pts

33▲5Newberry County, SCSC39,5618.8%−0.5 pts

34▲2Aiken County, SCSC181,5158.8%−0.9 pts

35Lexington County, SCSC317,5888.7%−1.0 pts

36▲3Richland County, SCSC434,9568.7%−0.6 pts

37▲6Pickens County, SCSC139,1988.6%0.0 pts

38▼5Kershaw County, SCSC73,1668.6%−1.4 pts

39▼2Beaufort County, SCSC204,4338.5%−0.9 pts

40▼11Charleston County, SCSC436,2008.3%−2.0 pts

41▼21Calhoun County, SCSC14,1888.1%−2.3 pts

42▲3Lancaster County, SCSC114,2967.9%−0.5 pts

43▲1York County, SCSC306,8877.6%−0.9 pts

44▼13Greenwood County, SCSC70,3797.4%−2.7 pts

45▼3Fairfield County, SCSC20,3407.0%−1.9 pts

46McCormick County, SCSC10,2153.5%−1.9 pts

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