Ranking of Iowa Counties By Percentage of Population that are Black or African American Alone in 2011

Updated on June 18, 2025.

Based on the US Census Vintage data estimates, in 2011, among all Iowa counties, Black Hawk County had the highest percentage of its population who identified their race as Black or African American Alone (8.86%), followed by Scott County (7.25%), and Polk County (6.33%).

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 Black or African American Alone Population in 2011

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 Black or African American Alone in 2011

Black Hawk

Scott

Polk

Des Moines

Johnson

Linn

Webster

Lee

Clinton

Buena Vista

Ranking of Iowa Counties By Percentage of Pop. that are Black or African American Alone in 2011

0 of 0

Rank	County	% of County Population
1	Black Hawk County	8.86
2	Scott County	7.25
3	Polk County	6.33
4	Des Moines County	5.28
5	Johnson County	5.04
6	Linn County	4.09
7	Webster County	4
8	Lee County	3.18
9	Clinton County	2.82
10	Buena Vista County	2.78
11	Story County	2.75
12	Dubuque County	2.6
13	Woodbury County	2.55
14	Page County	2.4
15	Henry County	2.37
16	Jones County	2.17
17	Crawford County	1.96
18	Decatur County	1.89
19	Marshall County	1.87
20	Calhoun County	1.78
21	Muscatine County	1.66
22	Wapello County	1.63
23	Dallas County	1.58
24	Pottawattamie County	1.48
25	Jefferson County	1.46
26	Jasper County	1.38
27	Floyd County	1.34
27	Poweshiek County	1.34
28	Cerro Gordo County	1.31
29	Hardin County	1.23
30	Mahaska County	1.2
31	Allamakee County	1.16
32	Fayette County	1.04
33	Winnebago County	0.97
34	Bremer County	0.91
35	Union County	0.84
36	Boone County	0.83
36	Washington County	0.83
37	Louisa County	0.8
38	Emmet County	0.72
38	Winneshiek County	0.72
39	O'Brien County	0.7
40	Marion County	0.69
41	Palo Alto County	0.68
41	Warren County	0.68
42	Cherokee County	0.64
43	Franklin County	0.63
44	Clarke County	0.61
45	Hancock County	0.6
45	Sioux County	0.6
46	Carroll County	0.59
47	Fremont County	0.56
47	Humboldt County	0.56
48	Hamilton County	0.54
49	Wright County	0.52
50	Clay County	0.51
51	Appanoose County	0.49
51	Clayton County	0.49
51	Worth County	0.49
52	Pocahontas County	0.46
53	Keokuk County	0.45
53	Monroe County	0.45
54	Greene County	0.44
54	Madison County	0.44
55	Taylor County	0.43
56	Iowa County	0.42
56	Plymouth County	0.42
57	Benton County	0.41
57	Chickasaw County	0.41
57	Sac County	0.41
58	Howard County	0.4
58	Mills County	0.4
58	Tama County	0.4
59	Ringgold County	0.38
60	Jackson County	0.37
60	Kossuth County	0.37
61	Monona County	0.36
61	Osceola County	0.36
62	Buchanan County	0.35
63	Cass County	0.34
63	Cedar County	0.34
64	Wayne County	0.33
65	Delaware County	0.31
65	Shelby County	0.31
66	Grundy County	0.27
66	Ida County	0.27
67	Lucas County	0.26
68	Audubon County	0.25
68	Montgomery County	0.25
69	Butler County	0.23
70	Mitchell County	0.22
71	Van Buren County	0.21
72	Adams County	0.2
72	Harrison County	0.2
73	Guthrie County	0.18
74	Dickinson County	0.17
74	Lyon County	0.17
75	Adair County	0.16
76	Davis County	0.1