RANKING · 2024 ACS · 57 SHOWN OF 57

Highest Scotch-Irish population share, South Dakota counties

South Dakota counties ranked by the share of all residents who are Scotch-Irish ancestry (2024 American Community Survey). A concentration measure: Scotch-Irish residents as a percentage of total population. This list covers the 57 counties in South Dakota that qualify, ranked against each other statewide. The median across all 57 is 0.3%. Biggest climber in the top 100 since 2020: Dewey County, SD, up 47 places to #14.

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SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPSCOTCH-IRISH SHAREVS 2010

01Fall River County, SDSD7,4672.3%0.0 pts

02▲2Perkins County, SDSD2,8531.6%0.0 pts

03▲3Lawrence County, SDSD29,4591.6%+0.1 pts

04▲10Clay County, SDSD15,0311.5%−1.0 pts

05▲14Edmunds County, SDSD4,0221.5%+0.7 pts

06▲32Lyman County, SDSD3,6941.3%−0.2 pts

07Butte County, SDSD10,8561.0%−3.7 pts

08▲23Day County, SDSD5,4841.0%+0.1 pts

09▼1Moody County, SDSD6,6321.0%+0.1 pts

10▲3Pennington County, SDSD116,7920.9%−1.2 pts

11▲45Spink County, SDSD6,1550.9%+0.7 pts

12▲3Davison County, SDSD20,0690.7%+0.1 pts

13▲35Potter County, SDSD2,3770.6%+0.2 pts

14▲47Dewey County, SDSD5,4190.6%+0.5 pts

15▲7Custer County, SDSD9,4310.6%−1.7 pts

16▲17Union County, SDSD17,4020.5%−0.7 pts

17▲7Brookings County, SDSD37,6350.5%−0.7 pts

18▲41Ziebach County, SDSD2,3890.5%+0.2 pts

19▲23McCook County, SDSD5,9640.5%−0.1 pts

20▲19Lake County, SDSD10,9930.5%+0.3 pts

21▲23Faulk County, SDSD2,1780.5%−1.8 pts

22▲3Meade County, SDSD30,7110.5%−1.8 pts

23▼5Minnehaha County, SDSD212,6910.4%−0.4 pts

24▼19Clark County, SDSD4,0310.4%−0.7 pts

25▲3Hutchinson County, SDSD7,4130.4%0.0 pts

26▲20Tripp County, SDSD5,7080.4%−3.2 pts

27▼17Kingsbury County, SDSD5,2840.4%−1.1 pts

28▼7Hughes County, SDSD17,5700.4%−1.1 pts

29▲18Deuel County, SDSD4,4080.3%−0.4 pts

30▲7Yankton County, SDSD23,6350.3%−0.5 pts

31▲29Campbell County, SDSD1,3770.3%–

32▼3Bon Homme County, SDSD7,2440.3%−0.5 pts

33Mellette County, SDSD2,1370.3%−0.2 pts

34▲18Roberts County, SDSD10,2550.3%−0.4 pts

35▼3Beadle County, SDSD19,6240.3%−0.1 pts

36▼13Jerauld County, SDSD1,6540.3%−2.8 pts

37▲20McPherson County, SDSD2,3470.3%–

38▼18Lincoln County, SDSD77,1450.3%−0.4 pts

39▼3Harding County, SDSD1,3310.3%−2.9 pts

40▲11Charles Mix County, SDSD9,3030.3%−0.4 pts

41▲4Aurora County, SDSD2,8010.2%−0.5 pts

42▼30Hamlin County, SDSD6,9000.2%0.0 pts

43▼3Brown County, SDSD37,5610.2%−0.8 pts

44▼1Turner County, SDSD9,3140.2%−0.9 pts

45▲10Brule County, SDSD5,2780.2%−0.8 pts

46▼20Codington County, SDSD29,5620.2%−1.3 pts

47▼30Gregory County, SDSD4,0370.2%−0.9 pts

48▲1Sanborn County, SDSD2,3880.2%−1.3 pts

49▼33Hand County, SDSD3,1210.2%−1.1 pts

50▲8Corson County, SDSD3,7810.2%−0.4 pts

51▼24Walworth County, SDSD5,2170.1%−1.1 pts

52▼18Hanson County, SDSD3,4560.1%−0.3 pts

53▼44Haakon County, SDSD1,8020.1%−1.5 pts

54Grant County, SDSD7,5340.1%−1.1 pts

55Miner County, SDSD2,2810.0%−0.7 pts

56▼15Douglas County, SDSD2,8880.0%−0.7 pts

57▲5Todd County, SDSD8,8630.0%−0.3 pts

SHOWING 1–57 OF 57

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