Ranking of Iowa Counties By Percentage of Population with Danish Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 48.99K people in Iowa with Danish ancestry (1.54% of Iowa population). Among all Iowa counties, Audubon County had the highest percentage of its population with Danish ancestry (26.57%), followed by Shelby County (10.06%), and Cass County (9.25%).

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

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

Data Source: US Census Bureau.
Ranking of Iowa Counties By Percentage of Population with Danish Ancestry in 2021
Audubon County
Shelby County
Cass County
Adair County
Harrison County
Clay County
Pottawattamie County
Monona County
Guthrie County
Humboldt County
Ranking of Iowa Counties By Percentage of Population with Danish Ancestry in 2021
0 of 0
Rank County Percentage of Pop. (%)
1 Audubon County 26.57
2 Shelby County 10.06
3 Cass County 9.25
4 Adair County 7.08
5 Harrison County 5.28
6 Clay County 5.13
7 Pottawattamie County 4.38
8 Monona County 4.36
9 Guthrie County 3.92
10 Humboldt County 3.89
11 Dickinson County 3.86
12 Ida County 3.68
13 Emmet County 3.09
13 Winnebago County 3.09
14 Franklin County 2.95
15 Palo Alto County 2.81
16 Mills County 2.80
17 Cerro Gordo County 2.74
18 Greene County 2.68
19 Grundy County 2.58
20 Buena Vista County 2.46
21 Kossuth County 2.31
22 Cedar County 2.26
23 Crawford County 2.24
24 Clinton County 2.21
25 Calhoun County 2.18
26 Carroll County 2.01
27 Warren County 1.97
28 Cherokee County 1.94
29 Story County 1.90
30 Page County 1.81
30 Winneshiek County 1.81
31 Boone County 1.70
32 Pocahontas County 1.66
33 Woodbury County 1.65
34 Hamilton County 1.63
35 Dallas County 1.58
36 Sac County 1.55
37 Chickasaw County 1.52
37 Montgomery County 1.52
37 Wright County 1.52
38 Marshall County 1.46
39 Black Hawk County 1.45
40 Bremer County 1.44
41 Iowa County 1.38
41 Taylor County 1.38
42 Johnson County 1.34
43 Hancock County 1.33
43 Webster County 1.33
44 Tama County 1.30
45 O'Brien County 1.28
45 Plymouth County 1.28
46 Butler County 1.25
47 Worth County 1.24
48 Adams County 1.22
48 Buchanan County 1.22
49 Polk County 1.17
50 Poweshiek County 1.16
51 Floyd County 1.13
52 Des Moines County 1.07
52 Mitchell County 1.07
53 Hardin County 1.04
53 Lyon County 1.04
54 Monroe County 1.03
55 Scott County 0.91
56 Fayette County 0.89
57 Decatur County 0.87
58 Clarke County 0.86
58 Linn County 0.86
59 Jefferson County 0.85
60 Fremont County 0.84
60 Howard County 0.84
61 Keokuk County 0.81
62 Jones County 0.78
63 Union County 0.73
64 Jackson County 0.69
65 Sioux County 0.68
65 Washington County 0.68
66 Benton County 0.66
66 Dubuque County 0.66
67 Madison County 0.65
67 Marion County 0.65
68 Lee County 0.59
69 Osceola County 0.58
70 Muscatine County 0.55
71 Jasper County 0.53
72 Allamakee County 0.51
73 Clayton County 0.45
74 Delaware County 0.43
75 Mahaska County 0.42
76 Henry County 0.40
77 Wapello County 0.36
78 Wayne County 0.34
79 Ringgold County 0.30
80 Louisa County 0.21
81 Lucas County 0.20
82 Appanoose County 0.14
83 Davis County 0.13
84 Van Buren County 0.04