Ranking of Illinois Counties By Black or African American Alone Population in 2017

Updated on June 18, 2025.

Based on the US Census Vintage data estimates, in 2017, among all Illinois counties, Cook County had the highest number of people who identified their race as Black or African American Alone (1.25M), followed by Will County (82.76K), and St. Clair County (80.03K).

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 2017
Cook
Will
St. Clair
Lake
DuPage
Winnebago
Peoria
Kane
Champaign
Sangamon
Ranking of Illinois Counties By Black or African American Alone Population in 2017
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Rank County Black or African American Alone Population
1 Cook County 1251668
2 Will County 82760
3 St. Clair County 80027
4 Lake County 52697
5 DuPage County 48213
6 Winnebago County 38398
7 Peoria County 34146
8 Kane County 32298
9 Champaign County 28687
10 Sangamon County 25543
11 Madison County 23038
12 Macon County 18467
13 Kankakee County 16786
14 Rock Island County 15556
15 McLean County 13822
16 Vermilion County 10894
17 Kendall County 9360
18 Jackson County 8825
19 DeKalb County 8219
20 McHenry County 5062
21 Stephenson County 4557
22 Knox County 4248
23 Jefferson County 3431
24 Randolph County 3354
25 Williamson County 3086
26 LaSalle County 3010
27 Adams County 2577
28 Morgan County 2392
29 Logan County 2359
30 Alexander County 2096
31 Coles County 2045
32 Lee County 1885
33 Perry County 1884
34 Tazewell County 1749
35 Pulaski County 1686
36 McDonough County 1676
37 Marion County 1603
38 Lawrence County 1584
39 Livingston County 1470
40 Boone County 1411
41 Fulton County 1381
42 Clinton County 1365
43 Brown County 1231
44 Whiteside County 1031
45 Montgomery County 1014
46 Bond County 1012
47 Crawford County 954
48 Fayette County 947
49 Henry County 928
50 Saline County 916
51 Johnson County 881
52 Massac County 850
53 Grundy County 824
54 Cass County 620
55 Ogle County 612
56 Christian County 529
57 Warren County 493
58 Macoupin County 438
59 Iroquois County 314
60 Bureau County 312
61 Schuyler County 284
62 Woodford County 276
63 Franklin County 227
64 Pope County 220
65 Pike County 217
66 Union County 200
67 Effingham County 170
67 Jersey County 170
68 Greene County 162
69 Carroll County 152
70 Jo Daviess County 142
71 Washington County 140
72 Ford County 139
73 De Witt County 135
73 Monroe County 135
74 Douglas County 133
75 Menard County 118
76 Piatt County 115
77 Richland County 112
78 Mercer County 107
79 Wabash County 104
80 White County 103
81 Edgar County 102
82 Hancock County 99
83 Wayne County 92
84 Mason County 84
85 Moultrie County 83
86 Marshall County 79
87 Clark County 75
88 Shelby County 70
89 Clay County 60
90 Cumberland County 51
90 Putnam County 51
91 Hamilton County 45
92 Stark County 40
93 Edwards County 35
94 Gallatin County 32
95 Henderson County 24
95 Scott County 24
96 Calhoun County 20
96 Jasper County 20
97 Hardin County 19