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 (2020 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. The median across all 46 is 6.4%.

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South CarolinaAll states All rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPIRISH SHAREVS 2010

01Oconee County, SCSC83,77513.5%−0.5 pts

02Beaufort County, SCSC204,43312.5%−1.0 pts

03Horry County, SCSC427,55111.9%−1.4 pts

04Pickens County, SCSC139,19811.3%−1.6 pts

05Georgetown County, SCSC65,91210.6%+1.7 pts

06York County, SCSC306,88710.1%−2.2 pts

07Lancaster County, SCSC114,29610.1%+2.1 pts

08Lexington County, SCSC317,58810.0%−1.8 pts

09Anderson County, SCSC219,9309.8%−3.7 pts

10Dorchester County, SCSC178,3979.7%−1.4 pts

11Greenville County, SCSC583,1259.7%−1.0 pts

12Aiken County, SCSC181,5159.7%+1.0 pts

13Charleston County, SCSC436,2009.2%−1.0 pts

14McCormick County, SCSC10,2159.0%+3.0 pts

15Berkeley County, SCSC274,6668.8%−0.9 pts

16Spartanburg County, SCSC380,8578.6%−1.8 pts

17Union County, SCSC26,7998.6%+0.2 pts

18Kershaw County, SCSC73,1668.0%+0.3 pts

19Laurens County, SCSC71,8487.8%−2.0 pts

20Abbeville County, SCSC24,8367.7%−3.3 pts

21Jasper County, SCSC38,5337.3%+0.1 pts

22Cherokee County, SCSC58,2756.5%−3.2 pts

23Darlington County, SCSC62,8886.4%+1.2 pts

24Newberry County, SCSC39,5616.2%−1.5 pts

25Greenwood County, SCSC70,3796.0%−2.2 pts

26Saluda County, SCSC19,6805.9%−2.3 pts

27Florence County, SCSC138,5045.8%−0.9 pts

28Chesterfield County, SCSC44,7405.7%−0.2 pts

29Edgefield County, SCSC29,8085.6%−1.2 pts

30Clarendon County, SCSC31,0435.4%−1.4 pts

31Sumter County, SCSC105,0675.3%−0.4 pts

32Richland County, SCSC434,9565.2%−2.3 pts

33Chester County, SCSC33,0015.2%−2.3 pts

34Colleton County, SCSC39,3824.4%−0.8 pts

35Calhoun County, SCSC14,1884.1%−4.4 pts

36Marlboro County, SCSC25,4884.1%−0.3 pts

37Dillon County, SCSC27,4583.6%−1.8 pts

38Fairfield County, SCSC20,3403.1%−2.3 pts

39Orangeburg County, SCSC83,1772.6%−1.3 pts

40Williamsburg County, SCSC29,6622.4%+0.3 pts

41Marion County, SCSC28,2422.3%−2.9 pts

42Lee County, SCSC15,7302.3%−0.1 pts

43Hampton County, SCSC18,1741.9%−4.5 pts

44Barnwell County, SCSC20,6531.7%−3.0 pts

45Allendale County, SCSC7,3551.7%−0.5 pts

46Bamberg County, SCSC12,7960.9%−1.9 pts

SHOWING 1–46 OF 46

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS