Geographic reference
Colchester city, Illinois
Colchester city is a Census place in Illinois.
Reference details
- State
- Illinois (IL)
- Census GEOID
- 1715378
- Land area
- 2.979 km²
- Water area
- 0 km²
- Representative point
- 40.42561, -90.792174
View point on map ↗
Geographic facts: 2026 U.S. Census Gazetteer. Coordinates identify a representative point, not the full geographic boundary.