Geographic reference
Decatur city, Illinois
Decatur city is a Census place in Illinois.
Reference details
- State
- Illinois (IL)
- Census GEOID
- 1718823
- Land area
- 114.377 km²
- Water area
- 12.182 km²
- Representative point
- 39.855983, -88.933746
View point on map ↗
Geographic facts: 2026 U.S. Census Gazetteer. Coordinates identify a representative point, not the full geographic boundary.