Rock Island, Illinois Voting-age Population By Race in Census 2020
Updated on February 22, 2026.
According to the data from the US 2020 decennial Census, in April 2020, among Rock Island, IL voting-age population of 112,700 people, 75.32% of them (84,882 people) identified their race as White Alone, 9.99% of them (11,260 people) identified their race as Black or African American Alone, and 6.90% of them (7,773 people) identified their race as Two Or More Races.
The first chart below shows the voting-age population by race and the second chart shows the percentage of the the Rock Island, IL voting-age population for each race. You can also find the information in a table below.
You can see similar information for other Illinois counties and also for the state of Illinois.
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Data Source: US Census Bureau, 2020 Census.
Rock Island, IL Voting-age Population By Race in Census 2020
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| Race | Voting-age Population | % of County Voting-age Population |
|---|---|---|
| Black or African American Alone | 11260 | 9.99 |
| White Alone | 84882 | 75.32 |
| American Indian and Alaska Native Alone | 533 | 0.47 |
| Asian Alone | 2835 | 2.52 |
| Native Hawaiian And Pacific Islander Alone | 28 | 0.03 |
| Some Other Race Alone | 5389 | 4.78 |
| Two Or More Races | 7773 | 6.90 |
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