RANKING · 2020 CENSUS · 46 SHOWN OF 46

Most uninsured people, South Carolina counties · 2020

South Carolina counties with the most residents lacking health insurance, as of the 2020 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.

South CarolinaAll states All rankings

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 –

01Greenville County, SCSC583,12553,419–

02Horry County, SCSC427,55147,202–

03Charleston County, SCSC436,20041,101–

04Richland County, SCSC434,95636,194–

05Spartanburg County, SCSC380,85732,156–

06Lexington County, SCSC317,58828,359–

07York County, SCSC306,88723,092–

08Berkeley County, SCSC274,66622,671–

09Anderson County, SCSC219,93020,251–

10Beaufort County, SCSC204,43317,137–

11Dorchester County, SCSC178,39716,412–

12Aiken County, SCSC181,51516,232–

13Florence County, SCSC138,50413,428–

14Sumter County, SCSC105,06711,599–

15Pickens County, SCSC139,19810,712–

16Orangeburg County, SCSC83,1778,939–

17Oconee County, SCSC83,7758,502–

18Laurens County, SCSC71,8487,876–

19Lancaster County, SCSC114,2967,866–

20Greenwood County, SCSC70,3797,001–

21Georgetown County, SCSC65,9126,736–

22Kershaw County, SCSC73,1666,548–

23Cherokee County, SCSC58,2756,261–

24Darlington County, SCSC62,8886,012–

25Chesterfield County, SCSC44,7405,226–

26Colleton County, SCSC39,3824,671–

27Jasper County, SCSC38,5334,549–

28Marion County, SCSC28,2424,250–

29Dillon County, SCSC27,4583,945–

30Marlboro County, SCSC25,4883,693–

31Newberry County, SCSC39,5613,505–

32Chester County, SCSC33,0013,444–

33Clarendon County, SCSC31,0433,321–

34Saluda County, SCSC19,6803,218–

35Williamsburg County, SCSC29,6622,948–

36Abbeville County, SCSC24,8362,825–

37Union County, SCSC26,7992,773–

38Barnwell County, SCSC20,6532,379–

39Edgefield County, SCSC29,8082,182–

40Fairfield County, SCSC20,3401,981–

41Hampton County, SCSC18,1741,838–

42Bamberg County, SCSC12,7961,748–

43Lee County, SCSC15,7301,646–

44Calhoun County, SCSC14,1881,509–

45Allendale County, SCSC7,355910–

46McCormick County, SCSC10,215456–

SHOWING 1–46 OF 46

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS