Town guide
Hennepin
Illinois · IL · Putnam County
About Hennepin
Town in Illinois, United States1837Established
769Population
5.6 sq miArea
502 ftElevation
Hennepin is a village located on the Illinois River in Putnam County, Illinois, United States. As of the 2020 census, Hennepin had a population of 769. It is the county seat and the second largest village in Putnam County. Hennepin is part of the Ottawa Micropolitan Statistical Area.
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
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