Ranking of Iowa Counties By Black or African American 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 Black or African American Alone (26.93K), followed by Scott County (11.94K), and Black Hawk County (11.79K).

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 Black or African American Alone Population in 2010
Polk
Scott
Black Hawk
Linn
Johnson
Woodbury
Dubuque
Story
Des Moines
Webster
Ranking of Iowa Counties By Black or African American Alone Population in 2010
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Rank County Black or African American Alone Population
1 Polk County 26934
2 Scott County 11938
3 Black Hawk County 11794
4 Linn County 8507
5 Johnson County 6556
6 Woodbury County 2590
7 Dubuque County 2574
8 Story County 2336
9 Des Moines County 2060
10 Webster County 1483
11 Pottawattamie County 1329
12 Clinton County 1302
13 Lee County 1136
14 Dallas County 961
15 Marshall County 757
16 Muscatine County 685
17 Cerro Gordo County 595
18 Buena Vista County 589
19 Wapello County 533
20 Jasper County 476
21 Henry County 465
22 Jones County 410
23 Page County 363
24 Crawford County 257
25 Mahaska County 256
26 Poweshiek County 233
27 Marion County 232
28 Jefferson County 227
29 Warren County 226
30 Hardin County 223
31 Boone County 208
32 Floyd County 205
33 Fayette County 204
34 Bremer County 202
35 Calhoun County 166
36 Sioux County 159
37 Washington County 157
38 Decatur County 155
39 Winneshiek County 139
40 Allamakee County 131
41 Benton County 101
41 Union County 101
42 Winnebago County 99
43 O'Brien County 92
44 Carroll County 91
45 Plymouth County 86
46 Clay County 75
47 Emmet County 74
48 Louisa County 72
48 Tama County 72
49 Cherokee County 71
50 Buchanan County 68
51 Clayton County 67
52 Hamilton County 66
52 Jackson County 66
52 Wright County 66
53 Appanoose County 64
54 Iowa County 62
55 Franklin County 61
56 Mills County 59
57 Hancock County 58
57 Madison County 58
58 Palo Alto County 56
59 Cedar County 54
60 Humboldt County 53
61 Clarke County 51
62 Keokuk County 48
63 Delaware County 47
64 Chickasaw County 46
65 Kossuth County 45
66 Fremont County 40
67 Cass County 38
68 Worth County 36
69 Monona County 33
69 Sac County 33
69 Shelby County 33
70 Grundy County 29
71 Dickinson County 28
71 Howard County 28
71 Pocahontas County 28
72 Greene County 27
72 Monroe County 27
73 Butler County 26
73 Harrison County 26
74 Montgomery County 24
74 Osceola County 24
75 Lucas County 22
76 Taylor County 21
77 Mitchell County 19
77 Wayne County 19
78 Ringgold County 18
79 Guthrie County 17
79 Ida County 17
80 Lyon County 16
80 Van Buren County 16
81 Audubon County 14
82 Adair County 12
83 Adams County 8
84 Davis County 7