Ranking of Iowa Counties By Non-Hispanic - White Alone Population from Census 2020

Updated on March 27, 2023.

According to the data from the United States 2020 decennial Census for Iowa counties, in April 2020, Polk County had the highest number of people who identified their race as Non-Hispanic - White Alone (362.26K), followed by Linn County (187.91K), and Scott County (134.58K).

The chart below shows the top 10 counties, and the table below shows the ranking of all Iowa counties.

You can see similar ranking information for other states. You can also see similar rankings of counties for other ethnicities as well as for the different racial groups in Iowa.

You can also see similar ranking for all counties in the United States.

Ranking of Iowa Counties By Non-Hispanic - White Alone Population from Census 2020
Polk
Linn
Scott
Johnson
Black Hawk
Dubuque
Dallas
Story
Pottawattamie
Woodbury
Ranking of Iowa Counties By Non-Hispanic - White Alone Population from Census 2020
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Rank County Population
1 Polk County 362260
2 Linn County 187911
3 Scott County 134578
4 Johnson County 114491
5 Black Hawk County 101150
6 Dubuque County 87349
7 Dallas County 81708
8 Story County 79944
9 Pottawattamie County 79181
10 Woodbury County 72237
11 Warren County 47897
12 Clinton County 41226
13 Cerro Gordo County 37819
14 Jasper County 34445
15 Des Moines County 32753
16 Muscatine County 32633
17 Webster County 31372
18 Marion County 30918
19 Sioux County 29919
20 Lee County 29888
21 Marshall County 27438
22 Wapello County 27295
23 Boone County 24720
24 Benton County 24077
25 Bremer County 23403
26 Plymouth County 22941
27 Mahaska County 20259
28 Washington County 19958
29 Buchanan County 19565
30 Carroll County 19409
31 Jones County 19002
32 Winneshiek County 18705
33 Jackson County 18369
34 Fayette County 18053
35 Henry County 17643
36 Cedar County 17334
37 Poweshiek County 17004
38 Dickinson County 16709
39 Delaware County 16706
40 Clayton County 16111
41 Madison County 15504
42 Iowa County 15394
43 Hardin County 15292
44 Clay County 15025
45 Floyd County 13907
46 Harrison County 13818
47 Kossuth County 13758
48 Butler County 13751
49 Page County 13686
50 Jefferson County 13425
51 Mills County 13330
52 Tama County 13284
53 Hamilton County 12702
54 O'Brien County 12609
55 Allamakee County 12401
56 Cass County 12317
57 Grundy County 11791
58 Appanoose County 11586
59 Buena Vista County 11377
60 Union County 11223
61 Lyon County 11175
62 Chickasaw County 11173
63 Shelby County 10890
64 Cherokee County 10668
65 Crawford County 10625
66 Wright County 10107
67 Mitchell County 10080
68 Guthrie County 9960
69 Hancock County 9813
70 Montgomery County 9603
71 Keokuk County 9476
72 Winnebago County 9472
73 Calhoun County 9261
74 Sac County 9161
75 Howard County 8890
76 Humboldt County 8823
77 Davis County 8735
78 Louisa County 8485
79 Palo Alto County 8391
80 Greene County 8188
81 Lucas County 8154
82 Emmet County 8134
83 Monona County 8051
84 Franklin County 8034
85 Clarke County 7837
86 Monroe County 7192
87 Adair County 7066
88 Decatur County 7010
89 Worth County 6946
90 Van Buren County 6878
91 Ida County 6554
92 Pocahontas County 6383
93 Wayne County 6228
94 Fremont County 6145
95 Audubon County 5443
96 Osceola County 5341
97 Taylor County 5304
98 Ringgold County 4447
99 Adams County 3518