Geographic reference
Alton city, Illinois
Alton city is a Census place in Illinois.
Reference details
- State
- Illinois (IL)
- Census GEOID
- 1701114
- Land area
- 40.471 km²
- Water area
- 3.313 km²
- Representative point
- 38.903898, -90.151204
View point on map ↗
Geographic facts: 2026 U.S. Census Gazetteer. Coordinates identify a representative point, not the full geographic boundary.