RANKING · 2020 CENSUS · 66 SHOWN OF 66

Largest Irish population, South Dakota counties · 2020

South Dakota 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 66 counties in South Dakota that qualify, ranked against each other statewide. The median across all 66 is 387.

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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

01Minnehaha County, SDSD212,69121,154+10%

02Pennington County, SDSD116,79214,426+3%

03Lincoln County, SDSD77,1456,024+25%

04Lawrence County, SDSD29,4593,400+5%

05Meade County, SDSD30,7113,390−12%

06Brookings County, SDSD37,6353,033−18%

07Brown County, SDSD37,5613,026−15%

08Codington County, SDSD29,5622,5720%

09Yankton County, SDSD23,6352,221−9%

10Clay County, SDSD15,0312,111−4%

11Hughes County, SDSD17,5702,038+23%

12Union County, SDSD17,4021,831−26%

13Davison County, SDSD20,0691,794−9%

14Beadle County, SDSD19,6241,777+3%

15Butte County, SDSD10,8561,6360%

16Custer County, SDSD9,4311,157+9%

17Lake County, SDSD10,9931,151−16%

18Fall River County, SDSD7,4671,136+27%

19Tripp County, SDSD5,708811+31%

20Spink County, SDSD6,155791+22%

21Turner County, SDSD9,314747−5%

22McCook County, SDSD5,964649−10%

23Bon Homme County, SDSD7,244628+14%

24Grant County, SDSD7,534603−8%

25Charles Mix County, SDSD9,303569+22%

26Kingsbury County, SDSD5,284516+4%

27Hutchinson County, SDSD7,413493−4%

28Moody County, SDSD6,632417−28%

29Walworth County, SDSD5,217414+41%

30Deuel County, SDSD4,408409+17%

31Brule County, SDSD5,278394−35%

32Lyman County, SDSD3,694393+14%

33Marshall County, SDSD4,426387+44%

34Perkins County, SDSD2,853360+38%

35Faulk County, SDSD2,178354+55%

36Roberts County, SDSD10,255353−44%

37Hamlin County, SDSD6,900346−1%

38Hand County, SDSD3,121333−36%

39Clark County, SDSD4,031322−10%

40Day County, SDSD5,484304−39%

41Gregory County, SDSD4,037303−38%

42Stanley County, SDSD3,018300−17%

43Edmunds County, SDSD4,022290+99%

44Douglas County, SDSD2,888282+68%

45Bennett County, SDSD3,307260+266%

46Hanson County, SDSD3,456247−33%

47Jackson County, SDSD2,666241−35%

48McPherson County, SDSD2,347223+103%

49Jerauld County, SDSD1,654222+60%

50Potter County, SDSD2,377187−29%

51Haakon County, SDSD1,802185−49%

52Hyde County, SDSD1,191172−19%

53Sanborn County, SDSD2,388171−41%

54Aurora County, SDSD2,801164−31%

55Sully County, SDSD1,479140−28%

56Ziebach County, SDSD2,389140−26%

57Dewey County, SDSD5,419139−60%

58Corson County, SDSD3,781138−16%

59Oglala Lakota County, SDSD13,338129–

60Todd County, SDSD8,863120−27%

61Miner County, SDSD2,281115−62%

62Harding County, SDSD1,331102−56%

63Jones County, SDSD91378−54%

64Mellette County, SDSD2,13765−62%

65Campbell County, SDSD1,37760−46%

66Buffalo County, SDSD1,80214−33%

SHOWING 1–66 OF 66

Download CSV (full list, 66 rows)

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