Mendon is a village in Adams County, Illinois, United States. The population was 872 at the 2020 census. It is part of the Quincy, IL–MO Micropolitan Statistical Area. The village is named after Mendon, Massachusetts.

From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)

Town numbers

ZIP code62351

Area codeSign in to add

Living in Mendon

Housing in Mendon

$211K▲ 12% in a year Typical home value · Zillow

The typical Mendon home is worth about $211,000, up 12% in a year, 29% below the Illinois typical home.

Zillow Home Value Index · Redfin Data CenterHousing market →

Work & commute in Mendon

Full picture →

Most working residents leave Mendon for work: only 6% work in town. The top destinations are Quincy (44%), Ellington (10%) and Mendon (5%). Half commute less than 12 miles.

Quincy

44%

Ellington

10%

Mendon

Springfield

6%Work in townlive and work in Mendon 12 miWhere do people commute?the commute map 252Jobs based herea commuter town

Census LEHD 2023 · ACSWork & commute in Mendon →

Health in Mendon

Health Grade B

Healthier than 57% of U.S. towns on seven CDC estimates.

Compared with Illinois

5better than IL·5worse

of 32 measures CDC estimates. The other 22 are too close to call.

Conditions 4▼ 8 close Habits 1▼ 3 close Care 1▲ 6 close Mind all close Everyday needs 4▲ 0 close

BetterToo close to callWorse

What stands out

6.8%Fewer uninsured adultsIL 9.9% · better 9.6%Fewer adults facing housing insecurityIL 13.2% · better 9.6%More adults who have had cancerIL 7.6% · worse

Care nearby

Blessing HospitalQuincy · 12.8 mi · ER

Siu Center for Family Medicine-Transitions of Western IllinoisQuincy · 12.1 mi · sliding-scale fees

Primary careShortage · county-wide

DentalShortage · county-wide

Mental healthShortage · county-wide

CDC PLACES 2025 · modeled estimates for adults · ZIP codes 62351, 62305, 62376 · CMS · HRSAHealth in Mendon →

Natural hazards in Mendon

Moderate

Expected storm and flood damage is higher than in 58% of U.S. communities.

🌊 Inland flooding🌵 Drought🥶 Cold waves

59Does Mendon flood?paid flood claims since 1993 NoneDisasters that paid out hereof 19 declared for Adams County MapMendon vs. its neighborsnearby towns shaded by rating

FEMA National Risk Index December 2025 · OpenFEMANatural hazards in Mendon →

Climate in Mendon

Full climate →

Mendon has chilly winters and warm summers. A typical July afternoon reaches 86°, a January night drops to 18°, and about 23 inches of snow falls in a normal winter.

38° / 21°Winter

63° / 42°Spring

84° / 64°Summer

65° / 45°Fall

How much snow does Mendon get?About 23 inches a winter.Rain & snow →When is the first frost?Around Oct 23, with the last in spring around Apr 14.Frost dates →Is it warmer than it used to be?+0.6° vs. the 20th century.Then & now →

NOAA U.S. Climate Normals, 1991–2020Climate in Mendon →

Schools in Mendon

All Mendon schools →

School Grade C

The public schools Mendon’s kids attend trail 69% of Illinois’s districts on state tests. Among towns with similar incomes, they rank near the bottom.

DistrictCUSD 4Schools3

Unity Elementary School B+Elementary · Grades PK–4 · 296 students Unity Middle School C+Middle · Grades 5–8 · 200 students Unity High School B-High · Grades 9–12 · 176 students

School data from the U.S. Department of Education (NCES, EDFacts). The School Grade is our own summary of state test results, graded within IL. Ratings are from neighbors.