Geographic reference
Massac County, Illinois
Massac County is a county or county-equivalent in Illinois.
Reference details
- State
- Illinois (IL)
- Census GEOID
- 17127
- Land area
- 614.222 km²
- Water area
- 12.781 km²
- Representative point
- 37.216119, -88.705658
View point on map ↗
Geographic facts: 2026 U.S. Census Gazetteer. Coordinates identify a representative point, not the full geographic boundary.