Hennepin, Illinois, 2012
Hennepin Township’s story
195 years in pictures
The archive holds 6 old photos and papers going back to 2012.
- 1831Hennepin Township is settled
Hennepin TownshipIL
6 bordering townsMap →
Photo: Nyttend · Public domain
Population
1,236
2025 Census estimate · +0% since 2020
Median home value
$211K
Census ACS
Household income
$89K
median
Median age
46.9
years
Jobs based here
679
Balanced
Is Hennepin Township a good place to live?
The best of Hennepin Township’s subject grades are an A− for history, civic life, and the outdoors. Hennepin Township’s median age is 46.9 years, above both the Illinois town median (40.7 years) and the median of U.S. towns (40.5 years). A typical home costs about $211K, 2.9 years of the Ottawa area’s $72K median household income. 17% of the land in Hennepin Township is conserved, against 3.7% in Illinois’ towns and 4.3% across U.S. towns. The biggest park or preserve is Donnelley State Fish and Wildlife Area, at 554 acres. Hennepin Township has fewer than 2,500 residents, so it gets subject grades but no overall grade.
What makes Hennepin Township stand out
Where Hennepin Township beats most towns.
Small town
1,236 people, and everyone knows the way
In a town this size, neighbors are the best guide. Ask them anything.
Nearby towns
Senachwine TownshipLeepertown TownshipHennepinGranville TownshipMagnolia TownshipHenry TownshipHennepin Township
How Hennepin Township grades
Each subject compared with towns across the country (schools within Illinois), ordered by how far Hennepin Township is from typical.
Cost of livingB+Open →HealthCarle Health Proctor Hospital 11.1 miles awayB+Open →Jobs & income$89K median household incomeBOpen →Hazard riskFEMA risk higher than 38% of U.S. communities; inland flooding tops the listBOpen →WalkabilityEPA walkability 6.8 of 20; 3.1% of households have no car; 1.8% of workers walk, bike or ride transitB−Open →SchoolsB−Open →
Character Graded, but not part of the overall grade.
Outdoors8 miles of trailsA−Open →HistoryA−Open →Civic life3.5 community nonprofits per 1,000 residentsA−Open →
Described, not graded Taste, not quality: snow or an older crowd is neither good nor bad.
How TownRatings grades towns →
Getting set up
The full setup list →Moving to Hennepin Township: who provides what
Who provides power, water and the rest in Hennepin Township, and how to reach them.
PowerAmeren Illinois Company16.7¢/kWh · EIA 2025HIFLD · EIA
WaterHennepin Pwd water systemNo health-based violations in 5 years · EPAEPA
Internet7 providers83% of addresses get 100/20 MbpsFCC
Trash & dumpNot on file yetWe don’t have Hennepin Township’s trash rules yet
Register to voteOnlineIn Illinois you can register online until 16 days before Election Day, in person up to and including Election Day, or by mail (postmarked 28 days before).vote.govWho runs elections herePutnam County ClerkPutnam County; contacts on the Handbook page.FVAP, Jun 2023
ZIP codes61327, 6132661327 98% · 61326 2%Census 2020
EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Sep 12, 2025.
The data
Ordered by what stands out in Hennepin Township.
SchoolsB−
Hennepin Township’s public schools trail 51% of Illinois districts
Its public schools are run by Putnam County CUSD 535. Its one school is below.
49%of IL districts it outscoresB−School Grade
| School | Level | Students | Letter |
|---|---|---|---|
| Putnam County Elem SchoolLargest public elementary schoolGrades 3–5 | Grades 3–5 | 158 | C+ |
NCES · EDFacts · graded within IL on state tests and graduation
HealthB+
On CDC estimates, Hennepin Township is healthier than 68% of U.S. towns
Hennepin Township beats the Illinois average on 6 of 32 CDC measures and trails it on 4. 31% of Hennepin Township adults feel lonely.
68%healthier than U.S. townsB+Health Grade
| Hennepin Township | Illinois towns | U.S. towns | |
|---|---|---|---|
| Feel lonely (CDC PLACES) | 31% | 33% | 33% |
| Food insecurity (CDC PLACES) | 10% | 13% | 14% |
| Frequent mental distress (CDC PLACES) | 16% | 17% | 17% |
| Sleep under 7 hours (CDC PLACES) | 34% | 35% | 36% |
32 measures vs. Illinois
6 better22 too close to call4 worse
| What stands out | Hennepin Township | IL |
|---|---|---|
| Fewer adults facing food insecurity | 10.4% | 15.9% |
| Fewer adults facing housing insecurity | 8.7% | 13.2% |
| More adults who have had cancer | 10.3% | 7.6% |
Carle Health Proctor Hospital
11.1 mi away · emergency room
2 of 3
care shortages: primary care, mental health
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
16.7%conserved
16.7%
conserved · 4,588 of 27,530 acres
7.7 mi
of trails · 0.2 per sq mi
| Biggest places to walk | Trails | Acres |
|---|---|---|
| 1. Donnelley State Fish and Wildlife Area | — | 554 |
Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-US
Climate
In Hennepin Township, expect four seasons and pleasant summers
Hennepin Township has chilly winters and warm summers. July afternoons reach 85°, January nights drop to 15° and about 29 inches of snow falls in a winter.
29″snow a winter
Typical low → high °F
Winter19–35°
Spring39–62°
Summer62–84°
Fall42–64°
Oct 17
typical first frost
Apr 24
typical last frost
+0.9°
vs. the 20th-century average
NOAA U.S. Climate Normals, 1991–2020
Work & commuteJobs & income grade B
With 1.3 jobs for every working resident, Hennepin Township draws in 635 commuters
Most working residents leave Hennepin Township for work: only 9% work in town. Jobs based in Hennepin Township grew to 679 in 2023, 228 more than in 2013. Hennepin Township’s average trip to work is 30 minutes.
9%work in town
| Hennepin Township | Illinois towns | U.S. towns | |
|---|---|---|---|
| Average trip to work | 30 minutes | 26 minutes | 25 minutes |
| Below the poverty line | 5.9% | 8.4% | 9.6% |
| Median household income | $89,000 | $83,000 | $80,000 |
Where working residents work
In Hennepin Township9%
Peru6%
Princeton6%
Peoria6%
Henry4%
16 mi
median commute distance
679
jobs based in Hennepin Township
Balanced
jobs vs. working residents
B−
Walkability grade: more walkable than 46% of U.S. towns
Census LEHD 2023 · ACS
Natural hazardsHazard risk grade B
Low risk in Hennepin Township, with inland flooding at the top
Expected storm and flood damage is lower than in 62% of U.S. communities. Since 1982, 47 flood insurance claims have been paid out in Hennepin Township.
38risk score of 100
FEMA risk score
Inland floodingTornadoesStrong wind
47
paid flood claims since 1982
FEMA flood insurance claims · FEMA National Risk Index · OpenFEMA
Keep exploring
Everything we know about Hennepin Township
18pages on Hennepin Township
The big questions
Out and about
The story
After high school
Colleges nearby
1 within 15 miles of the center of Hennepin Township
About 4 of every 100 Hennepin Township residents are enrolled in college, against 6 across Illinois.
About Hennepin Township
Town in Illinois, United States
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)
- Established
- 1837
- Area
- 5.6 sq mi
- Elevation
- 502 ft
- ZIP code
- 61327
Questions about Hennepin Township
Short answers, built from the data on this page.
Is Hennepin Township, IL expensive?
Not for the area. Cost of living, which also weighs rents, property taxes and how many households pay 30% or more of their income for housing, grades B+.