RANKING · 2024 ACS · 66 SHOWN OF 66

Highest Irish population share, South Dakota counties

South Dakota counties ranked by the share of all residents who are Irish ancestry (2024 American Community Survey). A concentration measure: Irish residents as a percentage of total population. This list covers the 66 counties in South Dakota that qualify, ranked against each other statewide. The median across all 66 is 9.0%. Biggest climber in the top 100 since 2020: Sanborn County, SD, up 36 places to #14.

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South DakotaAll states All rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPIRISH SHAREVS 2010

01▲27Haakon County, SDSD1,80220.2%+0.8 pts

02▲5Custer County, SDSD9,43116.8%+3.7 pts

03▼2Fall River County, SDSD7,46715.0%+2.4 pts

04▲10Union County, SDSD17,40214.2%−3.6 pts

05▲4Spink County, SDSD6,15514.0%+4.0 pts

06▲2Pennington County, SDSD116,79213.5%−0.9 pts

07▼1Lawrence County, SDSD29,45913.0%−0.6 pts

08▼5Faulk County, SDSD2,17813.0%+3.4 pts

09▲4McCook County, SDSD5,96412.8%0.0 pts

10▲5Hughes County, SDSD17,57012.5%+2.7 pts

11▲21Lake County, SDSD10,99312.4%0.0 pts

12▲4Jerauld County, SDSD1,65412.4%+5.5 pts

13▼1Hyde County, SDSD1,19112.0%−1.9 pts

14▲36Sanborn County, SDSD2,38812.0%−0.1 pts

15▼13Butte County, SDSD10,85612.0%−4.6 pts

16▼6Meade County, SDSD30,71111.3%−4.0 pts

17▼13Clay County, SDSD15,03111.2%−4.7 pts

18▲19Harding County, SDSD1,33111.0%−7.4 pts

19▼8Perkins County, SDSD2,85310.9%+2.2 pts

20▲18Brookings County, SDSD37,63510.4%−1.4 pts

21▲25Edmunds County, SDSD4,02210.4%+6.8 pts

22▲2Yankton County, SDSD23,63510.2%−0.7 pts

23▼6Minnehaha County, SDSD212,69110.2%−1.5 pts

24▼4Kingsbury County, SDSD5,2849.6%0.0 pts

25▲2McPherson County, SDSD2,3479.4%+5.0 pts

26▼8Sully County, SDSD1,4799.4%−5.2 pts

27▲4Bon Homme County, SDSD7,2449.3%+1.5 pts

28▼9Hand County, SDSD3,1219.2%−6.1 pts

29▼7Lincoln County, SDSD77,1459.2%−2.4 pts

30▲27Miner County, SDSD2,2819.2%−3.3 pts

31▼1Codington County, SDSD29,5629.1%−0.5 pts

32▲1Davison County, SDSD20,0699.1%−1.0 pts

33▲15Gregory County, SDSD4,0379.0%−2.4 pts

34▲13Jackson County, SDSD2,6668.9%−3.4 pts

35▼30Tripp County, SDSD5,7088.8%−1.9 pts

36▲7Walworth County, SDSD5,2178.3%+2.8 pts

37▲21Ziebach County, SDSD2,3898.0%+1.2 pts

38▼4Turner County, SDSD9,3148.0%−1.4 pts

39▲12Hutchinson County, SDSD7,4138.0%+1.1 pts

40▼19Lyman County, SDSD3,6947.9%−1.3 pts

41▲4Brule County, SDSD5,2787.9%−3.8 pts

42▲7Hanson County, SDSD3,4567.7%−3.1 pts

43▼4Grant County, SDSD7,5347.5%−1.4 pts

44▼21Stanley County, SDSD3,0187.4%−5.1 pts

45▼9Clark County, SDSD4,0317.3%−2.4 pts

46▼4Brown County, SDSD37,5617.2%−2.7 pts

47▼7Potter County, SDSD2,3776.9%−4.2 pts

48▲6Aurora County, SDSD2,8016.9%−1.8 pts

49▲4Charles Mix County, SDSD9,3036.7%+1.6 pts

50▼24Douglas County, SDSD2,8886.3%+0.8 pts

51▼26Beadle County, SDSD19,6246.0%−4.3 pts

52Moody County, SDSD6,6325.9%−3.0 pts

53▼12Marshall County, SDSD4,4265.3%−0.6 pts

54▲1Hamlin County, SDSD6,9005.2%−0.8 pts

55▲6Corson County, SDSD3,7815.1%+1.1 pts

56Day County, SDSD5,4844.6%−4.2 pts

57▼28Deuel County, SDSD4,4084.6%−3.4 pts

58▲5Dewey County, SDSD5,4194.3%−2.2 pts

59▲1Roberts County, SDSD10,2554.2%−2.1 pts

60▼25Jones County, SDSD9133.5%−12.4 pts

61▼17Bennett County, SDSD3,3073.3%+1.2 pts

62▲2Todd County, SDSD8,8632.1%+0.4 pts

63▼1Mellette County, SDSD2,1372.0%−6.5 pts

64▼5Campbell County, SDSD1,3770.7%−7.1 pts

65Oglala Lakota County, SDSD13,3380.6%–

66Buffalo County, SDSD1,8020.4%−0.7 pts

SHOWING 1–66 OF 66

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES