Hennepin, Illinois

Hennepin
Location of Hennepin in Putnam County, Illinois.
Coordinates: 41°15′10″N 89°20′30″W / 41.25278°N 89.34167°W / 41.25278; -89.34167
CountryUnited States
StateIllinois
CountyPutnam
TownshipHennepin
IncorporatedFebruary 13, 1837
Government
  MayorQuentin J Buffington
  ClerkDiana Brandstatter
  TreasurerJessica Leighton
Area
  Total
5.66 sq mi (14.66 km2)
  Land5.31 sq mi (13.74 km2)
  Water0.35 sq mi (0.92 km2)  6.39%
Elevation
503 ft (153 m)
Population
 (2020)
  Total
769
  Density144.90/sq mi (55.95/km2)
Time zoneUTC-6 (CST)
  Summer (DST)UTC-5 (CDT)
ZIP codes
61327
FIPS code17-34098
Websitehttp://www.villageofhennepin.com

Hennepin is a village located on the Illinois River in Putnam County, Illinois, United States. The population was 757 in 2010, an increase of 50 since the 2000 census. It is the county seat and second largest village in Putnam County.

Hennepin is part of the Ottawa Micropolitan Statistical Area.