Latitude and longitude of Putnam County, Illinois
- Nearby Oglesby, Illinois, United States
Satellite map of Putnam County, Illinois
Putnam County is the least extensive county in the U.S. state of Illinois. According to the 2010 census, it had a population of 6,006. The county seat is Hennepin.
Latitude: 41° 12' 0.00" N
Longitude: -89° 16' 48.00" W