Ranking of Illinois Counties By Percentage of Population with African Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 70.47K people in Illinois with African ancestry (0.55% of Illinois population). Among all Illinois counties, Kankakee County had the highest percentage of its population with African ancestry (7.74%), followed by Rock Island County (1.84%), and Schuyler County (1.61%).

The chart and table below shows the top 10 counties with high percentage of its population having African ancestry.

You can see similar information for other states and for other ancestry groups in Illinois.

Data Source: US Census Bureau.
Ranking of Illinois Counties By Percentage of Population with African Ancestry in 2021
Kankakee County
Rock Island County
Schuyler County
Will County
Knox County
Brown County
Cass County
Peoria County
Warren County
Champaign County
Ranking of Illinois Counties By Percentage of Population with African Ancestry in 2021
0 of 0
Rank County Percentage of Pop. (%)
1 Kankakee County 7.74
2 Rock Island County 1.84
3 Schuyler County 1.61
4 Will County 1.40
5 Knox County 1.19
6 Brown County 1.14
7 Cass County 1.01
7 Peoria County 1.01
8 Warren County 1.00
9 Champaign County 0.71
10 Stephenson County 0.70
11 McDonough County 0.69
12 Fulton County 0.61
13 Cook County 0.57
14 Adams County 0.56
14 Winnebago County 0.56
15 Jackson County 0.48
16 Randolph County 0.47
17 DeKalb County 0.43
18 Macon County 0.39
19 Livingston County 0.38
20 McLean County 0.37
20 Massac County 0.37
21 Coles County 0.34
21 Lake County 0.34
22 Madison County 0.32
23 St. Clair County 0.30
24 DuPage County 0.29
25 Sangamon County 0.26
26 Morgan County 0.25
27 Jefferson County 0.22
27 LaSalle County 0.22
28 Whiteside County 0.21
29 Kane County 0.20
29 Ogle County 0.20
30 Hardin County 0.19
30 White County 0.19
31 Bond County 0.18
31 Grundy County 0.18
31 Lawrence County 0.18
32 Woodford County 0.17
33 Jersey County 0.16
34 Tazewell County 0.14
34 Vermilion County 0.14
35 Macoupin County 0.12
35 Perry County 0.12
36 Lee County 0.10
37 Greene County 0.09
37 Richland County 0.09
38 Logan County 0.07
38 Monroe County 0.07
39 Bureau County 0.06
39 Franklin County 0.06
39 Kendall County 0.06
39 Pulaski County 0.06
40 Crawford County 0.05
41 Edgar County 0.04
41 Fayette County 0.04
41 Ford County 0.04
41 Iroquois County 0.04
41 McHenry County 0.04
41 Marshall County 0.04
42 De Witt County 0.03
42 Henry County 0.03
42 Marion County 0.03
42 Mason County 0.03
42 Union County 0.03
43 Clinton County 0.02
43 Henderson County 0.02
43 Putnam County 0.02
43 Williamson County 0.02
44 Carroll County 0.01
44 Montgomery County 0.01
45 Saline County 0.004