Madison County, Illinois Citizen Voting-age Population By Race and Ethnicity in 2018 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2018, the citizen voting-age population for Madison County, IL was 204.51K. The Non-Hispanic White Alone ethnicity group had the highest citizen voting-age population (180.41K) and constituted 88.22% of the total.

The Non-Hispanic Black or African American Alone ethnicity group had the second highest citizen voting-age population (15.72K) and constituted 7.68% of the total. The Hispanic or Latino of All Races ethnicity group had the third highest (4.43K), constituting 2.17% 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:

Madison County, Illinois Citizen Voting-age Population By Race and Ethnicity in 2018

Non-Hispanic White Alone

Non-Hispanic Black Alone

Hispanic or Latino of All Races

Non-Hispanic Two Or More Races

Non-Hispanic Asian Alone

Non-Hispanic American Indian & Alaska Native Alone

Non-Hispanic Native Hawaiian & Pac. Islander Alone

Madison County, Illinois Citizen Voting-age Population By Race and Ethnicity in 2018

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Ethnicity	Voting-age Population	% of Voting-age Pop.
Non-Hispanic White Alone	180410	88.22
Non-Hispanic Black or African American Alone	15715	7.68
Hispanic or Latino of All Races	4430	2.17
Non-Hispanic Two Or More Races	1990	0.97
Non-Hispanic Asian Alone	1440	0.70
Non-Hispanic American Indian and Alaska Native Alone	480	0.24
Non-Hispanic Native Hawaiian And Pacific Islander Alone	40	0.02