Illinois Black Population By County, 2018
Updated on December 2, 2021.

According to the US Census Bureau estimates, 1,866,004 (14.66%) of the 12,724,685 Illinois population in 2018 identified as Black or African American alone.

In the map below, we show the specific number of Blacks or African Americans per county in Illinois. We also show the percentage of the population of each county that are African American and the gender percentages of the African American population when you interact with the map.

Cook County had the highest number of African Americans (1,239,247), and African Americans constituted 23.97% of the county's population. Other counties with high number of African Americans include: Will County (84,054) - 12.17% of the county's population, and St. Clair County (80,039) - 30.59% of the county's population.

The data can also be found in the table below. You can use the table to sort, filter, and explore the data further.

Hover/Click on the counties to see the values.
Source: US Census Bureau (2018 Census).
Illinois Black Population By County, 2018
See also population estimate for other years:
Table of Illinois's Black Population by County in 2018
Black Population
% Black
Adams 2,541 3.87%
Alexander 1,953 32.32%
Bond 1,022 6.13%
Boone 1,508 2.83%
Brown 1,235 18.77%
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