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

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 106.24K people in South Dakota with Norwegian ancestry (12.05% of South Dakota population). Among all South Dakota counties, Marshall County had the highest percentage of its population with Norwegian ancestry (26.60%), followed by Day County (26.30%), and Deuel County (24.59%).

The chart and table below shows the top 10 counties with high percentage of its population having Norwegian 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 Norwegian Ancestry in 2021
Marshall County
Day County
Deuel County
Haakon County
Perkins County
Clark County
Kingsbury County
Harding County
Lake County
Jerauld County
Ranking of South Dakota Counties By Percentage of Population with Norwegian Ancestry in 2021
0 of 0
Rank County Percentage of Pop. (%)
1 Marshall County 26.60
2 Day County 26.30
3 Deuel County 24.59
4 Haakon County 23.29
5 Perkins County 23.11
6 Clark County 22.71
7 Kingsbury County 22.67
8 Harding County 22.14
9 Lake County 21.53
10 Jerauld County 19.71
11 Moody County 18.03
12 Brookings County 18.00
13 Codington County 17.31
14 Roberts County 17.14
15 Hamlin County 16.57
16 Grant County 16.05
16 Miner County 16.05
17 Stanley County 14.78
18 Sanborn County 14.59
19 Lincoln County 14.52
20 Minnehaha County 14.48
21 Faulk County 13.68
22 Hughes County 13.42
23 Turner County 12.85
24 Brown County 12.69
25 Campbell County 12.40
26 Lawrence County 11.90
27 Hyde County 11.80
28 Edmunds County 11.49
29 Butte County 10.31
30 Clay County 10.04
31 Beadle County 10.03
32 Custer County 9.77
33 Union County 9.67
34 Meade County 9.41
35 Jones County 9.39
36 Sully County 9.23
37 Yankton County 9.16
38 Walworth County 8.95
39 Lyman County 8.81
40 Spink County 8.66
41 Pennington County 8.63
42 Aurora County 8.49
43 Davison County 8.47
44 Brule County 7.49
45 Potter County 7.42
46 McCook County 7.12
47 McPherson County 6.95
48 Fall River County 6.89
49 Gregory County 6.49
50 Douglas County 6.38
51 Hand County 5.95
52 Hanson County 5.48
53 Hutchinson County 5.37
54 Bon Homme County 5.23
55 Jackson County 4.57
56 Tripp County 4.01
57 Bennett County 3.99
58 Charles Mix County 3.94
59 Mellette County 3.76
60 Corson County 2.77
61 Ziebach County 2.38
62 Dewey County 2.21
63 Buffalo County 0.91
64 Oglala Lakota County 0.12
65 Todd County 0.01