Rock Island County, Illinois Citizen Voting-age Population By Race and Ethnicity in 2024 (ACS-5Yrs)

Updated on March 26, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2024, the citizen voting-age population for Rock Island County, IL was 104.88K. The Non-Hispanic White Alone ethnicity group had the highest citizen voting-age population (80.50K) and constituted 76.76% of the total.

The Hispanic or Latino of All Races ethnicity group had the second highest citizen voting-age population (10.77K) and constituted 10.27% of the total. The Non-Hispanic Black or African American Alone ethnicity group had the third highest (9.40K), constituting 8.96% 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:

Rock Island County, Illinois Citizen Voting-age Population By Race and Ethnicity in 2024

Non-Hispanic White Alone

Hispanic or Latino of All Races

Non-Hispanic Black Alone

Non-Hispanic Two Or More Races

Non-Hispanic Asian Alone

Non-Hispanic American Indian & Alaska Native Alone

Non-Hispanic Native Hawaiian & Pac. Islander Alone

Rock Island County, Illinois Citizen Voting-age Population By Race and Ethnicity in 2024

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Ethnicity	Voting-age Population	% of Voting-age Pop.
Non-Hispanic White Alone	80500	76.76
Hispanic or Latino of All Races	10774	10.27
Non-Hispanic Black or African American Alone	9400	8.96
Non-Hispanic Two Or More Races	2778	2.65
Non-Hispanic Asian Alone	1292	1.23
Non-Hispanic American Indian and Alaska Native Alone	83	0.08
Non-Hispanic Native Hawaiian And Pacific Islander Alone	49	0.05