Geographic reference
Cass County, Illinois
Cass County is a county or county-equivalent in Illinois.
Reference details
- State
- Illinois (IL)
- Census GEOID
- 17017
- Land area
- 973.198 km²
- Water area
- 20.57 km²
- Representative point
- 39.969202, -90.245704
View point on map ↗
Geographic facts: 2026 U.S. Census Gazetteer. Coordinates identify a representative point, not the full geographic boundary.