Ranking of Illinois Counties By Black or African American Alone Population in 2019

Updated on June 18, 2025.

Based on the US Census Vintage data estimates, in 2019, among all Illinois counties, Cook County had the highest number of people who identified their race as Black or African American Alone (1.23M), followed by Will County (84.87K), and St. Clair County (79.58K).

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 2019
Cook
Will
St. Clair
Lake
DuPage
Winnebago
Peoria
Kane
Champaign
Sangamon
Ranking of Illinois Counties By Black or African American Alone Population in 2019
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Rank County Black or African American Alone Population
1 Cook County 1230039
2 Will County 84872
3 St. Clair County 79581
4 Lake County 52491
5 DuPage County 48727
6 Winnebago County 39920
7 Peoria County 34053
8 Kane County 32228
9 Champaign County 29121
10 Sangamon County 25435
11 Madison County 23425
12 Macon County 18581
13 Kankakee County 16532
14 Rock Island County 15920
15 McLean County 14436
16 Vermilion County 10668
17 Kendall County 10170
18 DeKalb County 8794
19 Jackson County 8678
20 McHenry County 5430
21 Stephenson County 4665
22 Knox County 4235
23 Randolph County 3383
24 Jefferson County 3339
25 Williamson County 3134
26 LaSalle County 3118
27 Adams County 2584
28 Logan County 2400
29 Morgan County 2309
30 Coles County 2039
31 Lee County 1895
32 Perry County 1885
33 Tazewell County 1867
34 Alexander County 1832
35 McDonough County 1676
36 Pulaski County 1617
37 Lawrence County 1608
38 Marion County 1604
39 Boone County 1520
40 Livingston County 1492
41 Fulton County 1396
42 Clinton County 1372
43 Brown County 1241
44 Whiteside County 1051
45 Bond County 1043
46 Montgomery County 1004
47 Henry County 984
48 Crawford County 967
49 Fayette County 966
50 Grundy County 920
51 Saline County 901
52 Johnson County 882
53 Massac County 872
54 Cass County 665
55 Ogle County 642
56 Christian County 514
57 Warren County 483
58 Macoupin County 448
59 Bureau County 338
60 Iroquois County 334
61 Schuyler County 299
62 Woodford County 291
63 Franklin County 237
64 Pike County 227
65 Pope County 224
66 Union County 217
67 Effingham County 213
68 Jersey County 177
69 Greene County 168
70 Jo Daviess County 159
71 De Witt County 157
72 Carroll County 155
73 Monroe County 150
74 Ford County 144
75 Richland County 141
76 Washington County 139
77 Douglas County 133
78 Hancock County 113
78 Wabash County 113
79 Piatt County 110
80 Menard County 109
81 Mercer County 106
82 Moultrie County 104
83 White County 101
84 Wayne County 99
85 Edgar County 95
86 Marshall County 84
86 Mason County 84
87 Shelby County 83
88 Clay County 74
89 Clark County 70
90 Hamilton County 54
91 Cumberland County 52
91 Stark County 52
92 Putnam County 44
93 Henderson County 40
94 Gallatin County 34
95 Edwards County 33
96 Scott County 31
97 Jasper County 30
98 Calhoun County 20
99 Hardin County 17