Ranking of South Dakota Counties By Percentage of Population with Other Groups Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 159.50K people in South Dakota with Other Groups ancestry (18.09% of South Dakota population). Among all South Dakota counties, Todd County had the highest percentage of its population with Other Groups ancestry (91.79%), followed by Oglala Lakota County (90.58%), and Buffalo County (81.81%).

The chart and table below shows the top 10 counties with high percentage of its population having Other Groups ancestry.

You can see similar information for other states and for other ancestry groups in South Dakota.

Data Source: US Census Bureau.
Ranking of South Dakota Counties By Percentage of Population with Other Groups Ancestry in 2021
Todd County
Oglala Lakota County
Buffalo County
Dewey County
Ziebach County
Corson County
Mellette County
Jackson County
Bennett County
Lyman County
Ranking of South Dakota Counties By Percentage of Population with Other Groups Ancestry in 2021
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Rank County Percentage of Pop. (%)
1 Todd County 91.79
2 Oglala Lakota County 90.58
3 Buffalo County 81.81
4 Dewey County 79.84
5 Ziebach County 78.66
6 Corson County 73.09
7 Mellette County 67.07
8 Jackson County 65.80
9 Bennett County 64.15
10 Lyman County 44.61
11 Roberts County 41.77
12 Charles Mix County 36.65
13 Moody County 24.07
14 Beadle County 23.18
15 Pennington County 20.56
16 Fall River County 19.96
17 Jones County 19.21
18 Tripp County 19.13
19 Brule County 17.67
20 Day County 17.55
21 Marshall County 16.99
22 Walworth County 15.74
23 Hughes County 15.62
24 Minnehaha County 14.78
25 Meade County 14.60
26 Gregory County 14.44
27 Bon Homme County 13.60
28 Lawrence County 13.14
29 Brown County 12.95
30 Lake County 12.81
31 Custer County 12.54
32 Aurora County 12.23
33 Grant County 11.63
34 Brookings County 11.31
35 Butte County 11.24
36 Union County 11.19
37 Clay County 10.62
38 Lincoln County 10.41
39 Stanley County 10.26
40 Yankton County 10.23
41 Harding County 10.18
42 Potter County 10.03
43 Codington County 9.99
44 Jerauld County 9.94
44 Perkins County 9.94
45 Haakon County 9.90
46 Davison County 9.83
47 Clark County 9.31
48 Douglas County 9.27
48 Hyde County 9.27
49 Kingsbury County 9.14
50 Sanborn County 8.94
51 Hamlin County 8.60
52 Spink County 7.96
53 Miner County 7.72
54 McCook County 7.36
55 Turner County 7.29
56 Deuel County 6.96
57 McPherson County 6.33
58 Hutchinson County 6.23
59 Hanson County 5.86
60 Edmunds County 5.79
61 Sully County 5.55
62 Campbell County 5.49
63 Hand County 4.93
64 Faulk County 4.87