Warren County, Illinois Citizen Voting-age Population By Race and Ethnicity in 2020 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2020, the citizen voting-age population for Warren County, IL was 12.82K. The Non-Hispanic White Alone ethnicity group had the highest citizen voting-age population (11.40K) and constituted 88.96% of the total.

The Hispanic or Latino of All Races ethnicity group had the second highest citizen voting-age population (780) and constituted 6.09% of the total. The Non-Hispanic Black or African American Alone ethnicity group had the third highest (420), constituting 3.28% 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:

Warren County, Illinois Citizen Voting-age Population By Race and Ethnicity in 2020

Non-Hispanic White Alone

Hispanic or Latino of All Races

Non-Hispanic Black Alone

Non-Hispanic Asian Alone

Non-Hispanic American Indian & Alaska Native Alone

Non-Hispanic Two Or More Races

Warren County, Illinois Citizen Voting-age Population By Race and Ethnicity in 2020

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Ethnicity	Voting-age Population	% of Voting-age Pop.
Non-Hispanic White Alone	11400	88.96
Hispanic or Latino of All Races	780	6.09
Non-Hispanic Black or African American Alone	420	3.28
Non-Hispanic Asian Alone	115	0.90
Non-Hispanic American Indian and Alaska Native Alone	50	0.39
Non-Hispanic Two Or More Races	45	0.35