Hennepin, IL

View of Hennepin, IL
Population
747
U.S. Census Population Estimates Program · 2025
Elevation
504 ft
USGS GNIS community points and 3DEP elevation · GNIS 2026-07-06; USGS 3DEP sampled 2026-07-23
Median Home Value
$168,300
U.S. Census American Community Survey 5-Year · 2024
Median Rent
$849/mo
U.S. Census American Community Survey 5-Year · 2024
Median Income
$83,000
U.S. Census American Community Survey 5-Year · 2024
General Quality
Overall rating out of 100

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About Hennepin

Set right along the Illinois River, Hennepin is a quiet village of around 750 residents and the seat of Putnam County. It has a long history for a community its size, anchored by an 1830s courthouse that remains the oldest in Illinois still in active daily use. Life here moves at a relaxed pace, with residential streets leading straight down to the water and easy highway access to nearby hubs like Peru, LaSalle, and Princeton.

Everyday life centers on the riverfront and a compact, walkable town center. Residents can easily stroll to local landmarks like the historic Edward Pulsifer House and the Agricultural Museum, or spend an afternoon boating and fishing along the water. Families are served by Putnam County School District 535, which offers a close-knit school environment. It makes Hennepin an appealing spot for anyone looking for a calm, down-to-earth river town to call home.

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