City in Rock Island County, Illinois
Rock Island
Who lives in Rock Island
Census survey estimates for 2020 to 2024, rounded.
People
- Population
- 36,200
- Median age
- 37.4 years
- Under 18
- 21%
- 65 and over
- 19%
- Veterans, of adults
- 6%
- Speak another language at home
- 12%
Race and ethnicity
- Hispanic or Latino, of any race
- 13%
- White, not Hispanic
- 63%
- Black, not Hispanic
- 16%
- Asian, not Hispanic
- 4%
Income and housing
- Median household income
- $59,000
- Below the poverty line
- 21%
- Bachelor's or higher, adults 25+
- 25%
- Owner-occupied homes
- 65%
- Median home value
- $126,000
2024 vote for president
Not counted for Rock Island on its own: its precincts follow township lines, not the town’s. See the figure for Rock Island County.
Who represents Rock Island
Rock Island's districts
U.S. House District 17
All of Rock Island
Held by Eric Sorensen, Democratic
- Washington office: (202) 225-5905
About 746,000 people, median household income $59,400.
Largest towns: Rockford (part), Peoria (part), Bloomington (part) and 124 more
Illinois Senate District 36
All of Rock Island
Held by Mike Halpin, Democratic
- Springfield office: (217) 782-4307
- District office: (309) 558-3612
About 214,300 people, median household income $63,100.
Largest towns: Moline, Rock Island, Galesburg and 38 more
Illinois House District 72
All of Rock Island
Held by Gregg Johnson, Democratic
- Springfield office: (217) 782-5970
- District office: (309) 203-1668
About 106,500 people, median household income $62,900.
Largest towns: Rock Island, Moline (part), East Moline (part) and 7 more
Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2020–2024; towns and counties from the 2020 Census, 119th Congressional District and 2024 state legislative district tabulation. Figures rounded by us. Retrieved 2026-10-19. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2020–2024; towns and counties from the 2020 Census, 119th Congressional District and 2024 state legislative district tabulation. Figures rounded by us. Retrieved 2026-10-19. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.