St. Clair County, Illinois Citizen Voting-age Population By Race and Ethnicity in 2022 (ACS-5Yrs)

Updated on March 26, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2022, the citizen voting-age population for St. Clair County, IL was 194.08K. The Non-Hispanic White Alone ethnicity group had the highest citizen voting-age population (125.39K) and constituted 64.61% of the total.

The Non-Hispanic Black or African American Alone ethnicity group had the second highest citizen voting-age population (54.18K) and constituted 27.92% of the total. The Hispanic or Latino of All Races ethnicity group had the third highest (6.21K), constituting 3.20% 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.

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St. Clair County, Illinois Citizen Voting-age Population By Race and Ethnicity in 2022
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
St. Clair County, Illinois Citizen Voting-age Population By Race and Ethnicity in 2022
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Ethnicity Voting-age Population % of Voting-age Pop.
Non-Hispanic White Alone 125385 64.61
Non-Hispanic Black or African American Alone 54180 27.92
Hispanic or Latino of All Races 6210 3.20
Non-Hispanic Two Or More Races 5575 2.87
Non-Hispanic Asian Alone 2155 1.11
Non-Hispanic American Indian and Alaska Native Alone 565 0.29
Non-Hispanic Native Hawaiian And Pacific Islander Alone 10 0.01