Rock Island County, Illinois Citizen Voting-age Population By Race and Ethnicity in 2011 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2011, the citizen voting-age population for Rock Island County, IL was 108.42K. The Non-Hispanic White Alone ethnicity group had the highest citizen voting-age population (91.19K) and constituted 84.10% of the total.

The Non-Hispanic Black or African American Alone ethnicity group had the second highest citizen voting-age population (8.25K) and constituted 7.61% of the total. The Hispanic or Latino of All Races ethnicity group had the third highest (6.75K), constituting 6.22% 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 2011

Non-Hispanic White Alone

Non-Hispanic Black Alone

Hispanic or Latino of All Races

Non-Hispanic Asian Alone

Non-Hispanic Two Or More Races

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 2011

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Ethnicity	Voting-age Population	% of Voting-age Pop.
Non-Hispanic White Alone	91185	84.10
Non-Hispanic Black or African American Alone	8250	7.61
Hispanic or Latino of All Races	6745	6.22
Non-Hispanic Asian Alone	1035	0.96
Non-Hispanic Two Or More Races	985	0.91
Non-Hispanic American Indian and Alaska Native Alone	205	0.19
Non-Hispanic Native Hawaiian And Pacific Islander Alone	10	0.01