St. Clair County, Illinois Citizen Voting-age Population By Race and Ethnicity in 2016 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2016, the citizen voting-age population for St. Clair County, IL was 198.69K. The Non-Hispanic White Alone ethnicity group had the highest citizen voting-age population (131.51K) and constituted 66.19% of the total.

The Non-Hispanic Black or African American Alone ethnicity group had the second highest citizen voting-age population (56.73K) and constituted 28.55% of the total. The Hispanic or Latino of All Races ethnicity group had the third highest (5.11K), constituting 2.57% 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:

St. Clair County, Illinois Citizen Voting-age Population By Race and Ethnicity in 2016

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 2016

0 of 0

Ethnicity	Voting-age Population	% of Voting-age Pop.
Non-Hispanic White Alone	131515	66.19
Non-Hispanic Black or African American Alone	56730	28.55
Hispanic or Latino of All Races	5110	2.57
Non-Hispanic Two Or More Races	2670	1.34
Non-Hispanic Asian Alone	2160	1.09
Non-Hispanic American Indian and Alaska Native Alone	440	0.22
Non-Hispanic Native Hawaiian And Pacific Islander Alone	70	0.04