Geographic reference
Putnam County, Illinois
Putnam County is a county or county-equivalent in Illinois.
Reference details
- State
- Illinois (IL)
- Census GEOID
- 17155
- Land area
- 414.65 km²
- Water area
- 31.194 km²
- Representative point
- 41.19881, -89.298444
View point on map ↗
Geographic facts: 2026 U.S. Census Gazetteer. Coordinates identify a representative point, not the full geographic boundary.