Johnson County, Illinois Citizen Voting-age Population By Race and Ethnicity in 2023 (ACS-5Yrs)

Updated on March 26, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2023, the citizen voting-age population for Johnson County, IL was 10.92K. The Non-Hispanic White Alone ethnicity group had the highest citizen voting-age population (8.82K) and constituted 80.81% of the total.

The Non-Hispanic Black or African American Alone ethnicity group had the second highest citizen voting-age population (1.00K) and constituted 9.21% of the total. The Non-Hispanic Two Or More Races ethnicity group had the third highest (670), constituting 6.14% of the total citizen voting-age population.

The charts and tables below shows the citizen voting-age population and percentages by race and ethnicity.

You can also see similar information for other Illinois counties, and for Illinois.

Data Source: US Census - ACS 5-Years (CVAP).

See this for other years:

Johnson County, Illinois Citizen Voting-age Population By Race and Ethnicity in 2023

Non-Hispanic White Alone

Non-Hispanic Black Alone

Non-Hispanic Two Or More Races

Hispanic or Latino of All Races

Non-Hispanic Asian Alone

Johnson County, Illinois Citizen Voting-age Population By Race and Ethnicity in 2023

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Ethnicity	Voting-age Population	% of Voting-age Pop.
Non-Hispanic White Alone	8820	80.81
Non-Hispanic Black or African American Alone	1005	9.21
Non-Hispanic Two Or More Races	670	6.14
Hispanic or Latino of All Races	400	3.67
Non-Hispanic Asian Alone	20	0.18