Ranking of Illinois Counties By Black or African American Alone Population in 2011

Updated on June 18, 2025.

Based on the US Census Vintage data estimates, in 2011, among all Illinois counties, Cook County had the highest number of people who identified their race as Black or African American Alone (1.31M), followed by St. Clair County (82.46K), and Will County (78.50K).

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.

See this for other years:
Ranking of Illinois Counties By Black or African American Alone Population in 2011
Cook
St. Clair
Will
Lake
DuPage
Winnebago
Peoria
Kane
Champaign
Sangamon
Ranking of Illinois Counties By Black or African American Alone Population in 2011
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Rank County Black or African American Alone Population
1 Cook County 1306124
2 St. Clair County 82460
3 Will County 78502
4 Lake County 51082
5 DuPage County 45574
6 Winnebago County 36756
7 Peoria County 33668
8 Kane County 31459
9 Champaign County 25881
10 Sangamon County 24052
11 Madison County 21457
12 Macon County 18307
13 Kankakee County 17467
14 Rock Island County 13797
15 McLean County 12834
16 Vermilion County 10812
17 Jackson County 8687
18 Kendall County 6952
19 DeKalb County 6891
20 Stephenson County 4421
21 Knox County 4004
22 McHenry County 3603
23 Jefferson County 3333
24 Randolph County 3321
25 Alexander County 2889
26 Williamson County 2653
27 LaSalle County 2450
28 Adams County 2420
29 Logan County 2358
30 Morgan County 2192
31 Coles County 2064
32 Livingston County 1973
33 Pulaski County 1967
34 Perry County 1964
35 Lee County 1835
36 Lawrence County 1653
37 McDonough County 1649
38 Marion County 1565
39 Tazewell County 1470
40 Clinton County 1400
41 Fulton County 1357
42 Brown County 1300
43 Boone County 1243
44 Johnson County 1184
45 Bond County 1117
46 Fayette County 1114
47 Saline County 1008
48 Montgomery County 967
49 Crawford County 955
50 Whiteside County 920
51 Massac County 878
52 Henry County 822
53 Grundy County 607
54 Cass County 572
55 Ogle County 514
56 Christian County 502
57 Macoupin County 402
58 Warren County 392
59 Pope County 309
60 Pike County 279
61 Bureau County 255
62 Iroquois County 252
63 Schuyler County 233
64 Woodford County 199
65 Union County 172
66 Franklin County 150
67 Carroll County 143
68 Greene County 124
69 Jersey County 120
70 Washington County 112
71 De Witt County 111
72 Jo Daviess County 110
73 Ford County 108
74 Effingham County 94
75 Douglas County 90
75 Menard County 90
75 Wabash County 90
76 Monroe County 86
77 Richland County 79
78 White County 77
79 Edgar County 73
80 Piatt County 68
81 Clark County 63
82 Hancock County 59
83 Mercer County 56
84 Clay County 54
84 Mason County 54
84 Shelby County 54
85 Wayne County 53
86 Marshall County 52
87 Moultrie County 49
88 Cumberland County 41
89 Putnam County 35
90 Stark County 32
91 Hamilton County 31
92 Edwards County 30
93 Henderson County 18
94 Gallatin County 15
95 Hardin County 14
95 Jasper County 14
96 Scott County 12
97 Calhoun County 7