Ranking of Iowa Counties By Population with Norwegian Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 144.59K people in Iowa with Norwegian ancestry. Among all Iowa counties, Polk County had the highest population with Norwegian ancestry (20.12K), followed by Story County (8.64K), and Linn County (8.42K).

The chart and table below shows the top 10 counties with high number of people with Norwegian 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 Population with Norwegian Ancestry in 2021
Polk County
Story County
Linn County
Johnson County
Black Hawk County
Cerro Gordo County
Winneshiek County
Dallas County
Woodbury County
Scott County
Ranking of Iowa Counties By Population with Norwegian Ancestry in 2021
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Rank County Population
1 Polk County 20124
2 Story County 8638
3 Linn County 8424
4 Johnson County 5995
5 Black Hawk County 5884
6 Cerro Gordo County 5577
7 Winneshiek County 5474
8 Dallas County 4634
9 Woodbury County 4388
10 Scott County 3829
11 Winnebago County 3302
12 Webster County 2562
13 Dubuque County 2504
14 Allamakee County 2246
15 Pottawattamie County 2116
16 Hamilton County 2050
17 Boone County 2048
18 Worth County 2031
19 Fayette County 1935
20 Warren County 1848
21 Wright County 1730
22 Clay County 1576
23 Kossuth County 1541
24 Dickinson County 1504
25 Clayton County 1466
25 Mitchell County 1466
26 Humboldt County 1461
27 Bremer County 1452
28 Hancock County 1442
29 Howard County 1426
30 Marshall County 1352
31 Hardin County 1273
32 Benton County 1246
33 Emmet County 1118
34 Floyd County 1105
35 Jasper County 1103
36 Clinton County 1075
37 Marion County 1044
38 Muscatine County 998
39 Buchanan County 985
40 Palo Alto County 906
41 O'Brien County 893
42 Plymouth County 877
43 Chickasaw County 844
44 Sioux County 792
45 Buena Vista County 734
46 Des Moines County 706
47 Iowa County 676
48 Henry County 653
49 Poweshiek County 636
50 Monona County 600
51 Jefferson County 560
52 Lyon County 557
53 Washington County 555
54 Madison County 526
55 Tama County 522
56 Mills County 517
57 Mahaska County 500
58 Butler County 497
59 Lee County 479
60 Grundy County 456
61 Calhoun County 455
62 Shelby County 427
63 Franklin County 423
64 Wapello County 416
65 Cedar County 406
65 Guthrie County 406
66 Carroll County 380
67 Jones County 367
68 Osceola County 351
69 Pocahontas County 350
70 Greene County 334
71 Page County 327
72 Jackson County 322
73 Union County 299
74 Delaware County 292
75 Harrison County 289
76 Crawford County 260
77 Cherokee County 243
78 Sac County 227
79 Montgomery County 226
80 Decatur County 223
81 Ida County 213
82 Clarke County 209
83 Lucas County 201
84 Adair County 155
85 Cass County 151
86 Appanoose County 147
87 Keokuk County 142
88 Audubon County 140
89 Wayne County 120
90 Monroe County 99
91 Adams County 98
92 Louisa County 96
93 Fremont County 87
94 Davis County 81
95 Taylor County 65
96 Ringgold County 57
97 Van Buren County 47