RANKING · 2020 CENSUS · 46 SHOWN OF 46

Highest uninsured rate, South Carolina counties · 2020

South Carolina counties ranked by the share of residents without health insurance (2023 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

YEAR2020 2024

RANKPLACESTATEPOPUNINSUREDVS 2000

01Saluda County, SCSC19,68016.1%–

02Jasper County, SCSC38,53315.7%–

03Marlboro County, SCSC25,48815.5%–

04Horry County, SCSC427,55113.8%–

05Marion County, SCSC28,24213.8%–

06Dillon County, SCSC27,45813.1%–

07Colleton County, SCSC39,38212.7%–

08Bamberg County, SCSC12,79612.4%–

09Laurens County, SCSC71,84812.0%–

10Allendale County, SCSC7,35511.7%–

11Abbeville County, SCSC24,83611.6%–

12Chesterfield County, SCSC44,74011.5%–

13Barnwell County, SCSC20,65311.4%–

14Sumter County, SCSC105,06711.4%–

15Cherokee County, SCSC58,27511.0%–

16Georgetown County, SCSC65,91210.9%–

17Oconee County, SCSC83,77510.9%–

18Chester County, SCSC33,00110.7%–

19Berkeley County, SCSC274,66610.5%–

20Calhoun County, SCSC14,18810.4%–

21Greenville County, SCSC583,12510.4%–

22Lee County, SCSC15,73010.4%–

23Spartanburg County, SCSC380,85710.4%–

24Dorchester County, SCSC178,39710.4%–

25Orangeburg County, SCSC83,17710.4%–

26Clarendon County, SCSC31,04310.3%–

27Hampton County, SCSC18,17410.3%–

28Union County, SCSC26,79910.3%–

29Charleston County, SCSC436,20010.3%–

30Anderson County, SCSC219,93010.2%–

31Greenwood County, SCSC70,37910.1%–

32Williamsburg County, SCSC29,66210.0%–

33Kershaw County, SCSC73,16610.0%–

34Florence County, SCSC138,5049.8%–

35Lexington County, SCSC317,5889.7%–

36Aiken County, SCSC181,5159.7%–

37Beaufort County, SCSC204,4339.4%–

38Newberry County, SCSC39,5619.3%–

39Richland County, SCSC434,9569.3%–

40Darlington County, SCSC62,8889.1%–

41Edgefield County, SCSC29,8088.9%–

42Fairfield County, SCSC20,3408.9%–

43Pickens County, SCSC139,1988.6%–

44York County, SCSC306,8878.5%–

45Lancaster County, SCSC114,2968.4%–

46McCormick County, SCSC10,2155.4%–

SHOWING 1–46 OF 46

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES