Ranking of Iowa Counties By White Alone Population in 2011

Updated on June 18, 2025.

Based on the US Census Vintage data estimates, in 2011, among all Iowa counties, Polk County had the highest number of people who identified their race as White Alone (383.41K), followed by Linn County (195.54K), and Scott County (145.88K).

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 2011
Polk
Linn
Scott
Johnson
Black Hawk
Woodbury
Pottawattamie
Dubuque
Story
Dallas
Ranking of Iowa Counties By White Alone Population in 2011
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Rank County White Alone Population
1 Polk County 383414
2 Linn County 195535
3 Scott County 145884
4 Johnson County 116366
5 Black Hawk County 114441
6 Woodbury County 91917
7 Pottawattamie County 89462
8 Dubuque County 89392
9 Story County 80939
10 Dallas County 65284
11 Clinton County 46444
12 Warren County 45411
13 Cerro Gordo County 42222
14 Muscatine County 40986
15 Marshall County 38439
16 Des Moines County 36620
17 Jasper County 35528
18 Webster County 35207
19 Wapello County 33835
20 Lee County 33539
21 Sioux County 33132
22 Marion County 32244
23 Benton County 25630
24 Boone County 25623
25 Plymouth County 24257
26 Bremer County 23727
27 Mahaska County 21657
28 Washington County 21250
29 Buchanan County 20513
30 Winneshiek County 20488
31 Carroll County 20412
32 Fayette County 20380
33 Jones County 20022
34 Jackson County 19250
35 Henry County 18896
36 Poweshiek County 18042
37 Cedar County 18008
38 Buena Vista County 17955
39 Clayton County 17717
40 Delaware County 17386
41 Hardin County 16867
42 Dickinson County 16607
43 Crawford County 16390
44 Clay County 16219
45 Iowa County 16044
46 Tama County 15690
47 Floyd County 15509
48 Madison County 15446
49 Kossuth County 15115
50 Page County 15066
51 Jefferson County 14945
52 Hamilton County 14822
53 Butler County 14735
54 Mills County 14680
55 Harrison County 14528
56 O'Brien County 13891
57 Allamakee County 13807
58 Cass County 13497
59 Wright County 12729
60 Appanoose County 12583
61 Grundy County 12318
62 Chickasaw County 12245
63 Union County 12234
64 Shelby County 11802
65 Cherokee County 11726
66 Lyon County 11571
67 Hancock County 11053
68 Louisa County 10897
69 Guthrie County 10688
70 Mitchell County 10585
71 Montgomery County 10442
72 Franklin County 10440
73 Winnebago County 10396
74 Keokuk County 10252
75 Sac County 10061
76 Calhoun County 9760
77 Emmet County 9651
78 Humboldt County 9588
79 Howard County 9393
80 Greene County 9143
81 Palo Alto County 9139
82 Clarke County 9073
83 Monona County 8967
84 Lucas County 8769
85 Davis County 8653
86 Decatur County 7899
87 Monroe County 7895
88 Adair County 7456
89 Worth County 7409
90 Van Buren County 7393
91 Fremont County 7227
92 Pocahontas County 7058
93 Ida County 6949
94 Wayne County 6234
95 Taylor County 6196
96 Osceola County 6195
97 Audubon County 5910
98 Ringgold County 4966
99 Adams County 3921