Ranking of Illinois 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 Illinois counties, Alexander County had the highest percentage of its population who identified their race as Black or African American Alone (36.14%), followed by Pulaski County (32.84%), and St. Clair County (30.53%).

The chart below shows the top 10 counties, and the table below shows the ranking of all Illinois 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 Illinois Counties By Black or African American Alone Population in 2011

Related Topics: Illinois Census Vintage Data Topic List.

Data Source: US Census Bureau (Vintage).

See this for other years:

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

Alexander

Pulaski

St. Clair

Cook

Brown

Peoria

Macon

Kankakee

Jackson

Vermilion

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

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Rank	County	% of County Population
1	Alexander County	36.14
2	Pulaski County	32.84
3	St. Clair County	30.53
4	Cook County	25.02
5	Brown County	18.89
6	Peoria County	18.03
7	Macon County	16.54
8	Kankakee County	15.39
9	Jackson County	14.39
10	Vermilion County	13.28
11	Champaign County	12.73
12	Winnebago County	12.52
13	Sangamon County	12.08
14	Will County	11.53
15	Randolph County	9.95
16	Lawrence County	9.78
17	Rock Island County	9.36
18	Stephenson County	9.34
19	Johnson County	9.22
20	Perry County	8.82
21	Jefferson County	8.6
22	Madison County	7.99
23	Logan County	7.79
24	Knox County	7.6
25	McLean County	7.51
26	Lake County	7.28
27	Pope County	6.86
28	DeKalb County	6.6
29	Bond County	6.3
30	Morgan County	6.18
31	Kane County	6.06
32	Kendall County	5.95
33	Massac County	5.75
34	Lee County	5.15
35	Livingston County	5.08
36	McDonough County	5.07
37	Fayette County	4.98
38	DuPage County	4.93
39	Crawford County	4.83
40	Cass County	4.2
41	Saline County	4.05
42	Marion County	4
43	Williamson County	3.98
44	Coles County	3.85
45	Clinton County	3.68
45	Fulton County	3.68
46	Adams County	3.6
47	Montgomery County	3.24
48	Schuyler County	3.12
49	Boone County	2.3
50	Warren County	2.2
51	LaSalle County	2.16
52	Pike County	1.71
53	Henry County	1.63
54	Whiteside County	1.58
55	Christian County	1.45
56	Grundy County	1.21
57	McHenry County	1.17
58	Tazewell County	1.08
59	Ogle County	0.97
59	Union County	0.97
60	Carroll County	0.94
61	Greene County	0.9
62	Iroquois County	0.85
63	Macoupin County	0.84
64	Ford County	0.78
65	Washington County	0.77
66	Wabash County	0.76
67	Bureau County	0.74
68	Menard County	0.71
69	De Witt County	0.67
70	Putnam County	0.59
71	Stark County	0.55
72	White County	0.53
73	Jersey County	0.52
74	Woodford County	0.51
75	Jo Daviess County	0.49
75	Richland County	0.49
76	Douglas County	0.45
76	Edwards County	0.45
77	Marshall County	0.42
78	Piatt County	0.41
79	Edgar County	0.4
80	Clark County	0.39
80	Clay County	0.39
81	Franklin County	0.38
82	Cumberland County	0.37
82	Hamilton County	0.37
82	Mason County	0.37
83	Mercer County	0.34
84	Hardin County	0.33
84	Moultrie County	0.33
85	Wayne County	0.32
86	Hancock County	0.31
87	Effingham County	0.27
87	Gallatin County	0.27
88	Monroe County	0.26
89	Henderson County	0.25
90	Shelby County	0.24
91	Scott County	0.23
92	Calhoun County	0.14
92	Jasper County	0.14