Rock Island city, Illinois
Official LSAD Designation: Rock Island city • Census GEOID: 1765078
• Rock Island County
Rock Island city is an incorporated city in Rock Island County, Illinois. According to official records from the Census (2025), Rock Island city had an estimated population of 36,225 residents. Official Census Bureau geographic records classify this community under LSAD designation Rock Island city (GEOID 1765078).
Local Government Administration U.S. Census Bureau GMAF
City Of Rock Island
Municipal
Official Title:
Interim Finance Director
Address:
1528 3RD AVE, ROCK ISLAND IL 61201-8612
County Of Rock Island
County
Official Title:
Executive Assistant
Address:
1504 3RD AVE, ROCK ISLAND IL 61201-8612
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 36,225 | 2025 |
| Median Household Income | $59,041 | 2020-2024 |
| Median Home Value | $125,900 | 2020-2024 |
| Land Area | 17.54 sq mi | Gazetteer (2026) |
| Civic & Public Services | Hospitals, Libraries, Colleges | CMS / IMLS / IPEDS |
| Schools & Districts | NCES Directory Listings | Provided by k12guides.com |
| Nearby Airports | Landing Facilities | Provided by airport-data.com |
| Climate & Weather | NOAA 30-Year Normals | 1991–2020 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).