Ranking of Illinois Counties By Black or African American Alone Population in 2010

Updated on June 18, 2025.

Based on the US Census Vintage data estimates, in 2010, 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 (82.78K), and Will County (77.68K).

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 2010
Cook
St. Clair
Will
Lake
DuPage
Winnebago
Peoria
Kane
Champaign
Sangamon
Ranking of Illinois Counties By Black or African American Alone Population in 2010
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Rank County Black or African American Alone Population
1 Cook County 1310975
2 St. Clair County 82780
3 Will County 77675
4 Lake County 51564
5 DuPage County 44021
6 Winnebago County 36953
7 Peoria County 33348
8 Kane County 31399
9 Champaign County 25430
10 Sangamon County 23667
11 Madison County 21418
12 Macon County 18201
13 Kankakee County 17471
14 Rock Island County 13741
15 McLean County 12658
16 Vermilion County 10703
17 Jackson County 8751
18 DeKalb County 6873
19 Kendall County 6842
20 Stephenson County 4356
21 Knox County 3908
22 McHenry County 3536
23 Randolph County 3286
24 Jefferson County 3283
25 Alexander County 2953
26 Williamson County 2580
27 Adams County 2377
28 Logan County 2321
29 LaSalle County 2240
30 Morgan County 2153
31 Coles County 2092
32 Pulaski County 2000
33 Livingston County 1948
34 Perry County 1906
35 Lee County 1763
36 McDonough County 1660
37 Lawrence County 1641
38 Marion County 1581
39 Tazewell County 1440
40 Clinton County 1373
41 Fulton County 1342
42 Brown County 1298
43 Boone County 1165
44 Bond County 1119
45 Johnson County 1033
46 Saline County 1014
47 Fayette County 989
48 Montgomery County 957
49 Crawford County 948
50 Massac County 911
51 Whiteside County 898
52 Henry County 826
53 Grundy County 643
54 Christian County 502
54 Ogle County 502
55 Cass County 486
56 Macoupin County 367
57 Warren County 332
58 Pope County 276
59 Pike County 274
60 Bureau County 255
61 Schuyler County 248
62 Iroquois County 239
63 Woodford County 191
64 Union County 162
65 Carroll County 135
66 Franklin County 128
67 Greene County 121
68 Jo Daviess County 106
69 Washington County 105
70 Jersey County 99
71 Ford County 97
72 De Witt County 94
73 Effingham County 91
74 Douglas County 84
75 Wabash County 82
76 Monroe County 80
76 Richland County 80
77 Edgar County 75
78 Menard County 74
79 Piatt County 59
79 White County 59
80 Hancock County 57
81 Mason County 53
82 Mercer County 52
82 Shelby County 52
83 Clay County 50
84 Clark County 49
85 Marshall County 45
86 Moultrie County 43
87 Wayne County 42
88 Cumberland County 38
89 Edwards County 32
89 Hamilton County 32
89 Putnam County 32
90 Stark County 30
91 Henderson County 17
92 Jasper County 13
93 Gallatin County 12
93 Hardin County 12
94 Scott County 9
95 Calhoun County 7