Ranking of Iowa Counties By Percentage of Population that are Non-Hispanic Black or African American in 2010

Updated on June 18, 2025.

Based on the US Census Vintage data estimates, in 2010, among all Iowa counties, Black Hawk County had the highest percentage of its population who identified their ethnicity as Non-Hispanic Black or African American (8.8%), followed by Scott County (6.93%), and Polk County (6%).

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.

You may also be interested in:
Ranking of Iowa Counties By Non-Hispanic Black or African American Population in 2010

Related Topics: Iowa Census Vintage Data Topic List.

Data Source: US Census Bureau (Vintage).

See this for other years:

Ranking of Iowa Counties By Percentage of Pop. that are Non-Hispanic Black or African American in 2010

Black Hawk

Scott

Polk

Des Moines

Johnson

Linn

Webster

Lee

Dubuque

Clinton

Ranking of Iowa Counties By Percentage of Pop. that are Non-Hispanic Black or African American in 2010

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Rank	County	% of County Population
1	Black Hawk County	8.8
2	Scott County	6.93
3	Polk County	6
4	Des Moines County	5
5	Johnson County	4.79
6	Linn County	3.89
7	Webster County	3.8
8	Lee County	3.07
9	Dubuque County	2.66
10	Clinton County	2.55
11	Buena Vista County	2.52
12	Story County	2.45
13	Woodbury County	2.36
14	Henry County	2.22
14	Page County	2.22
15	Jones County	1.97
16	Decatur County	1.77
17	Marshall County	1.63
18	Calhoun County	1.6
19	Dallas County	1.38
20	Muscatine County	1.31
21	Pottawattamie County	1.3
22	Wapello County	1.29
23	Jasper County	1.27
24	Cerro Gordo County	1.26
24	Crawford County	1.26
25	Jefferson County	1.24
26	Floyd County	1.22
26	Hardin County	1.22
27	Poweshiek County	1.18
28	Mahaska County	1.13
29	Fayette County	0.96
30	Allamakee County	0.81
30	Bremer County	0.81
31	Boone County	0.78
32	Union County	0.74
32	Winnebago County	0.74
33	Marion County	0.66
33	Washington County	0.66
34	Emmet County	0.63
35	Winneshiek County	0.62
36	Cherokee County	0.55
37	Louisa County	0.52
37	Palo Alto County	0.52
38	Warren County	0.48
39	Hancock County	0.46
39	Humboldt County	0.46
39	Keokuk County	0.46
40	Fremont County	0.44
41	Appanoose County	0.43
42	Clarke County	0.42
43	Clay County	0.41
44	O'Brien County	0.4
45	Carroll County	0.39
45	Mills County	0.39
46	Pocahontas County	0.38
47	Monona County	0.36
47	Tama County	0.36
48	Benton County	0.35
48	Ringgold County	0.35
49	Worth County	0.34
50	Clayton County	0.33
51	Iowa County	0.32
51	Plymouth County	0.32
51	Sac County	0.32
51	Sioux County	0.32
51	Wright County	0.32
52	Madison County	0.31
53	Buchanan County	0.29
53	Cedar County	0.29
53	Hamilton County	0.29
53	Jackson County	0.29
54	Howard County	0.28
54	Kossuth County	0.28
55	Wayne County	0.27
56	Monroe County	0.26
56	Shelby County	0.26
57	Cass County	0.25
57	Delaware County	0.25
58	Greene County	0.24
58	Ida County	0.24
59	Chickasaw County	0.23
59	Montgomery County	0.23
59	Osceola County	0.23
60	Grundy County	0.22
61	Taylor County	0.21
61	Van Buren County	0.21
62	Adams County	0.2
63	Franklin County	0.19
63	Lucas County	0.19
64	Dickinson County	0.17
64	Harrison County	0.17
65	Butler County	0.16
65	Guthrie County	0.16
66	Audubon County	0.15
66	Mitchell County	0.15
67	Adair County	0.14
68	Davis County	0.08
68	Lyon County	0.08