RANKING · 2020 CENSUS · 46 SHOWN OF 46

Largest Irish population, South Carolina counties · 2020

South Carolina counties ranked by the number of residents who are Irish ancestry, from the 2020 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 46 counties in South Carolina that qualify, ranked against each other statewide.

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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 POPULATIONVS 2010

01Greenville County, SCSC583,12550,192+7%

02Horry County, SCSC427,55140,904+19%

03Charleston County, SCSC436,20037,447+7%

04Lexington County, SCSC317,58829,551−1%

05York County, SCSC306,88727,690+5%

06Spartanburg County, SCSC380,85727,115−7%

07Beaufort County, SCSC204,43323,673+13%

08Richland County, SCSC434,95621,665−23%

09Anderson County, SCSC219,93019,664−21%

10Berkeley County, SCSC274,66619,511+19%

11Aiken County, SCSC181,51516,405+21%

12Dorchester County, SCSC178,39715,713+9%

13Pickens County, SCSC139,19814,136−7%

14Oconee County, SCSC83,77510,586+3%

15Lancaster County, SCSC114,2969,625+67%

16Florence County, SCSC138,5048,037−11%

17Georgetown County, SCSC65,9126,611+23%

18Sumter County, SCSC105,0675,679−7%

19Kershaw County, SCSC73,1665,282+14%

20Laurens County, SCSC71,8485,237−20%

21Darlington County, SCSC62,8884,304+19%

22Greenwood County, SCSC70,3794,220−25%

23Cherokee County, SCSC58,2753,701−30%

24Chesterfield County, SCSC44,7402,628−3%

25Newberry County, SCSC39,5612,390−17%

26Union County, SCSC26,7992,361−4%

27Orangeburg County, SCSC83,1772,301−36%

28Jasper County, SCSC38,5332,152+27%

29Abbeville County, SCSC24,8361,881−33%

30Clarendon County, SCSC31,0431,825−23%

31Chester County, SCSC33,0011,682−32%

32Colleton County, SCSC39,3821,673−18%

33Edgefield County, SCSC29,8081,505−16%

34Saluda County, SCSC19,6801,199−26%

35Dillon County, SCSC27,4581,101−36%

36Marlboro County, SCSC25,4881,072−16%

37McCormick County, SCSC10,215851+40%

38Williamsburg County, SCSC29,662730+3%

39Marion County, SCSC28,242722−59%

40Fairfield County, SCSC20,340690−47%

41Calhoun County, SCSC14,188597−54%

42Lee County, SCSC15,730393−16%

43Hampton County, SCSC18,174366−73%

44Barnwell County, SCSC20,653363−66%

45Allendale County, SCSC7,355150−37%

46Bamberg County, SCSC12,796123−72%

SHOWING 1–46 OF 46

Download CSV (full list, 46 rows)

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