Ranking of Iowa Counties By White Alone Population in 2010

Updated on June 18, 2025.

Based on the US Census Vintage data estimates, in 2010, among all Iowa counties, Polk County had the highest number of people who identified their race as White Alone (378.81K), followed by Linn County (193.81K), and Scott County (144.98K).

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 racial and ethnicity groups in the United States.

You can also see similar information for other states, and also the ranking of all counties in the United States.

See this for other years:
Ranking of Iowa Counties By White Alone Population in 2010
Polk
Linn
Scott
Johnson
Black Hawk
Woodbury
Pottawattamie
Dubuque
Story
Dallas
Ranking of Iowa Counties By White Alone Population in 2010
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Rank County White Alone Population
1 Polk County 378811
2 Linn County 193810
3 Scott County 144980
4 Johnson County 114635
5 Black Hawk County 114160
6 Woodbury County 91802
7 Pottawattamie County 89446
8 Dubuque County 88837
9 Story County 80239
10 Dallas County 62993
11 Clinton County 46543
12 Warren County 45229
13 Cerro Gordo County 42407
14 Muscatine County 41050
15 Marshall County 38522
16 Des Moines County 36880
17 Jasper County 35756
18 Webster County 35414
19 Wapello County 34100
20 Lee County 33817
21 Sioux County 32957
22 Marion County 32228
23 Boone County 25644
24 Benton County 25615
25 Plymouth County 24452
26 Bremer County 23682
27 Mahaska County 21588
28 Washington County 21175
29 Buchanan County 20583
30 Winneshiek County 20549
31 Carroll County 20420
32 Fayette County 20332
33 Jones County 20011
34 Jackson County 19397
35 Henry County 18806
36 Buena Vista County 18192
37 Cedar County 18114
38 Poweshiek County 18106
39 Clayton County 17802
40 Delaware County 17531
41 Hardin County 17033
42 Crawford County 16498
43 Dickinson County 16431
44 Clay County 16264
45 Iowa County 16073
46 Tama County 15773
47 Floyd County 15742
48 Madison County 15475
49 Kossuth County 15277
50 Page County 15138
51 Hamilton County 15027
52 Jefferson County 14865
53 Mills County 14749
54 Butler County 14724
55 Harrison County 14683
56 O'Brien County 14114
57 Allamakee County 14019
58 Cass County 13702
59 Wright County 12917
60 Appanoose County 12609
61 Grundy County 12321
62 Chickasaw County 12263
63 Union County 12200
64 Shelby County 11989
65 Cherokee County 11836
66 Lyon County 11455
67 Hancock County 11086
68 Louisa County 11030
69 Guthrie County 10777
70 Mitchell County 10685
71 Winnebago County 10555
72 Montgomery County 10518
73 Franklin County 10480
74 Keokuk County 10369
75 Sac County 10210
76 Emmet County 9894
77 Calhoun County 9880
78 Humboldt County 9598
79 Howard County 9428
80 Palo Alto County 9215
81 Greene County 9207
82 Clarke County 9106
83 Monona County 9003
84 Lucas County 8798
85 Davis County 8660
86 Decatur County 8072
87 Monroe County 7850
88 Adair County 7594
89 Van Buren County 7464
90 Worth County 7443
91 Fremont County 7290
92 Pocahontas County 7164
93 Ida County 6981
94 Osceola County 6338
95 Wayne County 6327
96 Taylor County 6230
97 Audubon County 6011
98 Ringgold County 5035
99 Adams County 3950