Ranking of Iowa Counties By Non-Hispanic Black or African American 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 ethnicity as Non-Hispanic Black or African American (26.81K), followed by Scott County (11.56K), and Black Hawk County (11.40K).

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 Non-Hispanic Black or African American Population in 2011
Polk
Scott
Black Hawk
Linn
Johnson
Woodbury
Dubuque
Story
Des Moines
Webster
Ranking of Iowa Counties By Non-Hispanic Black or African American Population in 2011
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Rank County Non-Hispanic Black or African American Population
1 Polk County 26806
2 Scott County 11562
3 Black Hawk County 11395
4 Linn County 8483
5 Johnson County 6496
6 Woodbury County 2432
7 Dubuque County 2380
8 Story County 2357
9 Des Moines County 2069
10 Webster County 1455
11 Clinton County 1328
12 Pottawattamie County 1258
13 Lee County 1091
14 Dallas County 1046
15 Marshall County 677
16 Muscatine County 574
17 Cerro Gordo County 531
18 Wapello County 507
19 Jasper County 497
20 Buena Vista County 479
21 Henry County 461
22 Jones County 446
23 Page County 373
24 Warren County 311
25 Crawford County 287
26 Mahaska County 267
27 Poweshiek County 241
28 Jefferson County 230
29 Bremer County 215
29 Marion County 215
30 Boone County 213
31 Fayette County 211
32 Floyd County 210
33 Hardin County 207
34 Calhoun County 176
35 Washington County 164
36 Allamakee County 151
37 Decatur County 146
38 Winneshiek County 140
39 Sioux County 125
40 Carroll County 113
41 Benton County 97
41 Plymouth County 97
41 Union County 97
42 Winnebago County 83
43 Clayton County 80
44 Clay County 77
44 Louisa County 77
45 Cherokee County 71
46 Buchanan County 65
47 Emmet County 64
47 Jackson County 64
48 Cedar County 62
48 Tama County 62
49 Hancock County 61
50 Mills County 60
50 O'Brien County 60
51 Iowa County 59
52 Madison County 58
53 Palo Alto County 57
54 Hamilton County 56
54 Kossuth County 56
55 Appanoose County 54
56 Delaware County 51
57 Humboldt County 47
57 Keokuk County 47
58 Clarke County 44
59 Wright County 43
60 Sac County 42
61 Cass County 39
62 Shelby County 36
63 Howard County 35
64 Chickasaw County 34
64 Fremont County 34
64 Greene County 34
65 Monona County 33
65 Pocahontas County 33
66 Grundy County 32
67 Butler County 30
67 Monroe County 30
68 Dickinson County 28
68 Harrison County 28
69 Worth County 27
70 Montgomery County 26
71 Franklin County 25
72 Mitchell County 20
73 Lucas County 19
73 Ringgold County 19
74 Guthrie County 18
74 Ida County 18
75 Wayne County 17
76 Van Buren County 16
77 Osceola County 14
77 Taylor County 14
78 Lyon County 13
79 Adair County 11
80 Audubon County 10
81 Davis County 9
82 Adams County 8