Counties in Illinois by black or African American population share
Alexander County had the highest black or African American population share of 102 counties in 2021, at 33.5%. Wabash County had the lowest, at 0.1%. The median was 2.7% and the figure for Illinois was 13.8%. Source: the U.S. Census Bureau.
Top 40 counties, 2021
Full ranking
Other periods
About this ranking
People who are not Hispanic or Latino and report Black or African American as their only race, as a percentage of the total population. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.
US federal statistics ask about Hispanic origin and race separately, and Hispanic or Latino people can be of any race. The shares for White, Black and Asian count people who are not Hispanic and report that race alone, so the published shares do not add up to 100 (people of two or more races and other races are not shown). Calculated from counts in ACS table B03002, which are stored as inputs. EU and Spanish statistics do not collect race.
Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.
How to cite
U.S. Census Bureau. American Community Survey 5-year estimates, table B03002: Black or African American alone, not Hispanic or Latino, as a percentage of the total population, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b03002.dat. Retrieved 2026-10-09.Use this data in your AI agent
Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:
Rank Counties in Illinois by black or African American population share using official data, and cite the source.
rank_places {"indicator":"black_share","level":"province","within":"Illinois","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=black_share&level=province&within=Illinois&limit=10Questions
Which county has the highest black or African American population share?
Alexander County, with 33.5% in 2021, according to the U.S. Census Bureau.
Which county has the lowest black or African American population share?
Wabash County, with 0.1% in 2021.
Where does this ranking come from?
Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B03002: Black or African American alone, not Hispanic or Latino, as a percentage of the total population, calculated with stored inputs. Retrieved 2026-10-09.
Black or African American population share: other rankings
- US states
- US counties
- Counties in Texas
- Counties in Georgia
- Counties in Virginia
- Counties in Kentucky
- Counties in Missouri
- Counties in Kansas
- Counties in North Carolina
- Counties in Iowa
- Counties in Tennessee
- Counties in Nebraska
Counties in Illinois: more rankings
- Asian population share
- Bachelor's degree or higher, population 25 and over
- Live births, July to June
- Crude birth rate, July to June
- Crude death rate, July to June
- Deaths, July to June
- Foreign-born population share
- Real GDP growth
- GDP per capita, US dollars
- Gross domestic product (GDP), US dollars
- Hispanic or Latino population share
- Homeownership rate (US, housing units)
- Median age
- Median gross rent (monthly)
- Median home value
- Median household income