Ranking of Illinois Counties By Percentage of Population that are Black or African American Alone in 2015

Updated on June 18, 2025.

Based on the US Census Vintage data estimates, in 2015, among all Illinois counties, Alexander County had the highest percentage of its population who identified their race as Black or African American Alone (33.7%), followed by Pulaski County (31.76%), and St. Clair County (30.37%).

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 2015

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 2015

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 2015

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Rank	County	% of County Population
1	Alexander County	33.7
2	Pulaski County	31.76
3	St. Clair County	30.37
4	Cook County	24.4
5	Brown County	18.99
6	Peoria County	18.42
7	Macon County	17.26
8	Kankakee County	15.32
9	Jackson County	14.92
10	Vermilion County	13.65
11	Champaign County	13.15
12	Winnebago County	13.14
13	Sangamon County	12.53
14	Will County	11.82
15	Randolph County	10.59
16	Rock Island County	10.44
17	Lawrence County	10.15
18	Stephenson County	9.8
19	Johnson County	9.17
20	Jefferson County	9.01
21	Perry County	8.89
22	Madison County	8.44
23	Knox County	8.14
24	Logan County	7.91
25	McLean County	7.78
26	Lake County	7.44
27	DeKalb County	7.37
28	Kendall County	6.86
29	Morgan County	6.39
30	Bond County	6.08
31	Kane County	6.06
32	Massac County	5.78
33	Pope County	5.65
34	McDonough County	5.38
35	Lee County	5.25
36	DuPage County	5.11
37	Fayette County	5.03
38	Crawford County	4.91
39	Cass County	4.45
40	Williamson County	4.39
41	Livingston County	4.37
42	Marion County	4.03
43	Saline County	4.01
44	Coles County	3.83
44	Fulton County	3.83
45	Adams County	3.7
46	Schuyler County	3.69
47	Clinton County	3.61
48	Montgomery County	3.38
49	Warren County	2.86
50	LaSalle County	2.69
51	Boone County	2.49
52	Whiteside County	1.78
53	Henry County	1.77
54	Christian County	1.57
55	McHenry County	1.49
56	Grundy County	1.48
57	Pike County	1.44
58	Tazewell County	1.22
59	Greene County	1.18
60	Union County	1.09
61	Iroquois County	1.08
62	Ogle County	1.06
63	Carroll County	0.99
64	Ford County	0.96
65	De Witt County	0.91
66	Macoupin County	0.9
67	Bureau County	0.88
67	Menard County	0.88
68	Washington County	0.86
69	Putnam County	0.8
70	Wabash County	0.74
71	Stark County	0.71
72	Jersey County	0.68
73	Douglas County	0.65
74	White County	0.64
75	Mercer County	0.62
76	Edwards County	0.61
76	Richland County	0.61
76	Woodford County	0.61
77	Wayne County	0.59
78	Gallatin County	0.57
79	Hamilton County	0.56
79	Marshall County	0.56
80	Cumberland County	0.55
80	Jo Daviess County	0.55
81	Hardin County	0.54
81	Piatt County	0.54
82	Edgar County	0.51
82	Franklin County	0.51
82	Mason County	0.51
83	Effingham County	0.47
83	Hancock County	0.47
84	Clay County	0.46
85	Clark County	0.43
85	Moultrie County	0.43
86	Scott County	0.41
87	Monroe County	0.34
87	Shelby County	0.34
88	Calhoun County	0.31
88	Henderson County	0.31
89	Jasper County	0.24