Geographic reference
Rock Island County, Illinois
Rock Island County is a county or county-equivalent in Illinois.
Reference details
- State
- Illinois (IL)
- Census GEOID
- 17161
- Land area
- 1,107.214 km²
- Water area
- 61.63 km²
- Representative point
- 41.468421, -90.572125
View point on map ↗
Geographic facts: 2026 U.S. Census Gazetteer. Coordinates identify a representative point, not the full geographic boundary.