Ranking of Iowa Counties By Non-Hispanic Black or African American 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 ethnicity as Non-Hispanic Black or African American (25.94K), followed by Black Hawk County (11.54K), and Scott County (11.45K).

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 2010
Polk
Black Hawk
Scott
Linn
Johnson
Dubuque
Woodbury
Story
Des Moines
Webster
Ranking of Iowa Counties By Non-Hispanic Black or African American Population in 2010
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Rank County Non-Hispanic Black or African American Population
1 Polk County 25940
2 Black Hawk County 11539
3 Scott County 11447
4 Linn County 8240
5 Johnson County 6293
6 Dubuque County 2499
7 Woodbury County 2415
8 Story County 2195
9 Des Moines County 2010
10 Webster County 1441
11 Clinton County 1254
12 Pottawattamie County 1215
13 Lee County 1100
14 Dallas County 924
15 Marshall County 663
16 Muscatine County 560
17 Cerro Gordo County 556
18 Buena Vista County 512
19 Jasper County 467
20 Wapello County 460
21 Henry County 447
22 Jones County 407
23 Page County 353
24 Mahaska County 252
25 Poweshiek County 223
26 Warren County 222
27 Marion County 218
28 Crawford County 216
29 Hardin County 214
30 Jefferson County 209
31 Boone County 204
32 Fayette County 200
33 Floyd County 199
34 Bremer County 196
35 Calhoun County 162
36 Decatur County 149
37 Washington County 144
38 Winneshiek County 130
39 Allamakee County 117
40 Sioux County 108
41 Union County 93
42 Benton County 91
43 Carroll County 81
44 Plymouth County 80
44 Winnebago County 80
45 Clay County 68
46 Cherokee County 66
47 Emmet County 65
48 Tama County 64
49 Buchanan County 60
50 Clayton County 59
50 Louisa County 59
50 Mills County 59
51 O'Brien County 58
52 Jackson County 57
53 Appanoose County 55
54 Cedar County 54
55 Iowa County 53
56 Hancock County 52
57 Madison County 49
57 Palo Alto County 49
58 Keokuk County 48
59 Hamilton County 45
59 Humboldt County 45
60 Delaware County 44
60 Kossuth County 44
61 Wright County 42
62 Clarke County 39
63 Cass County 35
64 Fremont County 33
64 Monona County 33
64 Sac County 33
65 Shelby County 32
66 Chickasaw County 28
66 Dickinson County 28
66 Pocahontas County 28
67 Grundy County 27
67 Howard County 27
68 Worth County 26
69 Harrison County 25
70 Butler County 24
70 Montgomery County 24
71 Greene County 22
72 Monroe County 21
73 Franklin County 20
74 Ringgold County 18
75 Guthrie County 17
75 Ida County 17
75 Lucas County 17
75 Wayne County 17
76 Mitchell County 16
76 Van Buren County 16
77 Osceola County 15
78 Taylor County 13
79 Adair County 11
80 Audubon County 9
80 Lyon County 9
81 Adams County 8
82 Davis County 7