Illinois Black or African American Alone Population By County in 2011

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2011, the Black or African American Alone population in Illinois was 1,903,967 and represented 14.80% of the total Illinois population (12,867,783).

Among Illinois counties, Cook County had the highest number of people who identified as Black or African American Alone (1,306,124), followed by St. Clair County (82,460), and Will County (78,502). Calhoun County had the lowest (7).

In the map below, we show the number and percentage of each county's Black or African American Alone population, as well as the gender percentages when you interact with the map. The data can also be found in a table below. You can use the table to sort, filter, and explore the data further.

You can see similar information for other states and also by state for the United States.

You can also see similar information for other racial and ethnicity groups in Illinois.

See this for other years:
Illinois Black or African American Alone Population By County in 2011
Illinois Black or African American Alone Population By County in 2011
County
Black Alone Population
% of County Population
Cook 1,306,124 25.02
St. Clair 82,460 30.53
Will 78,502 11.53
Lake 51,082 7.28
DuPage 45,574 4.93
Winnebago 36,756 12.52
Peoria 33,668 18.03
Kane 31,459 6.06
Champaign 25,881 12.73
Sangamon 24,052 12.08
Madison 21,457 7.99
Macon 18,307 16.54
Kankakee 17,467 15.39
Rock Island 13,797 9.36
McLean 12,834 7.51
Vermilion 10,812 13.28
Jackson 8,687 14.39
Kendall 6,952 5.95
DeKalb 6,891 6.6
Stephenson 4,421 9.34
Knox 4,004 7.6
McHenry 3,603 1.17
Jefferson 3,333 8.6
Randolph 3,321 9.95
Alexander 2,889 36.14
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