RANKING · 2020 CENSUS · 46 SHOWN OF 46

Highest Irish population share, South Carolina counties · 2020

South Carolina counties ranked by the share of all residents who are Irish ancestry (2023 American Community Survey). A concentration measure: Irish residents as a percentage of total population. 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 American population Highest American population share Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share

YEAR2010 2020 2024

RANKPLACESTATEPOPIRISH SHAREVS 2000

01Oconee County, SCSC83,77513.5%–

02Beaufort County, SCSC204,43312.5%–

03Horry County, SCSC427,55111.9%–

04Pickens County, SCSC139,19811.3%–

05Georgetown County, SCSC65,91210.6%–

06York County, SCSC306,88710.1%–

07Lancaster County, SCSC114,29610.1%–

08Lexington County, SCSC317,58810.0%–

09Anderson County, SCSC219,9309.8%–

10Dorchester County, SCSC178,3979.7%–

11Greenville County, SCSC583,1259.7%–

12Aiken County, SCSC181,5159.7%–

13Charleston County, SCSC436,2009.2%–

14McCormick County, SCSC10,2159.0%–

15Berkeley County, SCSC274,6668.8%–

16Spartanburg County, SCSC380,8578.6%–

17Union County, SCSC26,7998.6%–

18Kershaw County, SCSC73,1668.0%–

19Laurens County, SCSC71,8487.8%–

20Abbeville County, SCSC24,8367.7%–

21Jasper County, SCSC38,5337.3%–

22Cherokee County, SCSC58,2756.5%–

23Darlington County, SCSC62,8886.4%–

24Newberry County, SCSC39,5616.2%–

25Greenwood County, SCSC70,3796.0%–

26Saluda County, SCSC19,6805.9%–

27Florence County, SCSC138,5045.8%–

28Chesterfield County, SCSC44,7405.7%–

29Edgefield County, SCSC29,8085.6%–

30Clarendon County, SCSC31,0435.4%–

31Sumter County, SCSC105,0675.3%–

32Richland County, SCSC434,9565.2%–

33Chester County, SCSC33,0015.2%–

34Colleton County, SCSC39,3824.4%–

35Calhoun County, SCSC14,1884.1%–

36Marlboro County, SCSC25,4884.1%–

37Dillon County, SCSC27,4583.6%–

38Fairfield County, SCSC20,3403.1%–

39Orangeburg County, SCSC83,1772.6%–

40Williamsburg County, SCSC29,6622.4%–

41Marion County, SCSC28,2422.3%–

42Lee County, SCSC15,7302.3%–

43Hampton County, SCSC18,1741.9%–

44Barnwell County, SCSC20,6531.7%–

45Allendale County, SCSC7,3551.7%–

46Bamberg County, SCSC12,7960.9%–

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