Mendon township, Illinois
Mendon township profile, demographic data, and geographic information.
Mendon township is a geographic entity located in Adams County, Illinois. As of official census estimates, it has a reported population of 1,384. The land area covers 36.69 sq mi. [1]
Demographics & Population
| Demographic Metric | Estimate / Count | Margin of Error | Survey Period / Source |
|---|---|---|---|
| Total Population (2025 PEP Estimate) | 1,384 | — | 2025 / Census |
| Median Age | 37.2 yrs | ±3.5 | 2020-2024 / Census ACS 5-Year 2024 |
| Total Households | 630 | ±88 | 2020-2024 / Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).
Housing & Real Estate Profile
| Housing Metric | Estimate / Value | Margin of Error |
|---|---|---|
| Total Housing Units | 663 | ±89 |
| Occupied Housing Units | 630 | ±88 |
| Vacant Housing Units | 33 | ±22 |
| Median Home Value | $133,400 | ±$20,060 |
| Median Gross Rent | $667 | ±$619 |
Source: U.S. Census Bureau ACS 5-Year (2020-2024).
Economy & Workforce
| Economic Metric | Estimate / Value | Margin of Error |
|---|---|---|
| Median Household Income | $76,048 | ±$19,108 |
| Per Capita Income | $36,127 | ±$5,646 |
| Poverty Rate | 10.8% | ±4.4% |
| Population Below Poverty Level | 177 | ±78 |
| Unemployment Rate | 3.1% | ±3.8% |
| Civilian Labor Force, Employed | 909 | ±152 |
| Broadband Internet Rate | 88.9% | ±9.4% |
Source: U.S. Census Bureau ACS 5-Year (2020-2024).
Local Government & Public Administration
Authoritative general-purpose local government units serving this area
U.S. Census Bureau GUS (2026) / GMAF
| Government Unit | Unit Type | Jurisdiction Role | Contact / Address |
|---|---|---|---|
|
GUS Population: 1,385 (2024)
ID: 162725
|
Township | Official Local Government |
Contact: SUPERVISOR
2558 E 1000TH ST., MENDON IL 62351-2015
|
|
GUS Population: 64,109 (2024)
ID: 194541
|
County | Official County Government |
Contact: COUNTY CLERK
507 VERMONT ST, QUINCY IL 62301-2920
|
Education
Listing 10 local institutions (NCES 2024-2025)
External reference via K12Guides
| Institution | Type | Grades | Location |
|---|---|---|---|
| Regular School Mendon | PK-04 | Mendon, IL | |
| Regular School Mendon | 09-12 | Mendon, IL | |
| Regular School Mendon | 05-08 | Mendon, IL | |
| Alternative School Nearby | 07-12 | Quincy, IL | |
| Alternative School Nearby | 05-12 | Quincy, IL | |
| Alternative School Nearby | 07-12 | Quincy, IL | |
| Regular School Nearby | PK-06 | CANTON, MO | |
| Regular School Nearby | 07-12 | CANTON, MO | |
| Regular School Nearby | PK-KG | Golden, IL | |
| Regular School Nearby | 01-04 | Camp Point, IL |
Source: k12guides.com.
Community Facilities & Infrastructure
Displaying 10 civic institutions across 2 datasets queried
CMS • IPEDS • IMLS
| Facility Name | Category | Relationship | Address / Location | Contact |
|---|---|---|---|---|
|
Blessing Rieman College of Nursing and Health Sciences
|
College | 11.1 mi away | 3609 North Marx Drive, Quincy, IL, 62305-7005 |
21722855206905
|
|
FOUR STAR PUBLIC LIBRARY DISTRICT
|
Library | 1.0 mi away | 132 WEST SOUTH STREET, MENDON, IL, 62351 |
(217) 936-2131
|
|
Quincy University
|
College | 12.3 mi away | 1800 College Ave, Quincy, IL, 62301-2699 |
2172228020
|
|
LAGRANGE LIBRARY
|
Library | 11.7 mi away | 114 S MAIN ST, LAGRANGE, MO, 63448 |
(573) 655-2288
|
|
Culver-Stockton College
|
College | 12.8 mi away | One College Hill, Canton, MO, 63435-1299 |
5732886000
|
|
CANTON PUBLIC LIBRARY
|
Library | 12.2 mi away | 403 LEWIS ST, CANTON, MO, 63435 |
(573) 288-5279
|
|
John Wood Community College
|
College | 13.2 mi away | 1301 S 48th Street, Quincy, IL, 62305-8736 |
2172246500
|
|
CAMP POINT PUBLIC LIBRARY DISTRICT
|
Library | 12.7 mi away | 206 EAST STATE STREET, CAMP POINT, IL, 62320 |
(217) 593-7021
|
|
Gem City College
|
College Vocational | 13.5 mi away | 700 State St, Quincy, IL, 62301 |
2172220391
|
|
QUINCY PUBLIC LIBRARY
|
Library | 13.3 mi away | 526 JERSEY STREET, QUINCY, IL, 62301 |
(217) 223-1309
|
Distances calculated from authoritative source coordinates. Source: CMS, IMLS, NCES IPEDS.
Climate & Weather Observations
NOAA Monthly Climate Normals
Observation Station: Climate data reflects NOAA 1991–2020 standard normals recorded at CANTON L&D 20, MO US, located 12.3 miles from Mendon township. Local microclimates, topography, and elevation may cause municipal conditions to differ.
| Month | High (°F) | Low (°F) | Mean (°F) | Precip (in) | Snow (in) |
|---|---|---|---|---|---|
| January | 33.5° | 17.0° | 25.3° | 1.56" | — |
| February | 38.4° | 20.6° | 29.5° | 1.88" | — |
| March | 50.4° | 30.5° | 40.4° | 2.43" | — |
| April | 62.6° | 41.5° | 52.0° | 4.06" | — |
| May | 72.0° | 53.0° | 62.5° | 5.17" | — |
| June | 81.0° | 62.7° | 71.9° | 4.60" | — |
| July | 84.8° | 66.3° | 75.5° | 4.23" | — |
| August | 83.4° | 64.1° | 73.8° | 4.11" | — |
| September | 77.2° | 55.6° | 66.4° | 3.49" | — |
| October | 65.1° | 43.8° | 54.5° | 3.36" | — |
| November | 51.0° | 32.2° | 41.6° | 2.58" | — |
| December | 38.7° | 22.6° | 30.7° | 1.98" | — |
Source: NOAA U.S. Climate Normals (1991–2020).
Local Weather Forecast
Weather forecast data is currently unavailable in the local cache.
Nearby Cities & Communities
Listing adjacent communities by spatial proximity (miles)
Proximity discovery
| Community Name | Classification | Distance | Population |
|---|---|---|---|
| Mendon village | Village | 0.9 mi | — |
| Marcelline CDP | CDP | 4.3 mi | — |
| Ursa village | Village | 4.7 mi | — |
| Loraine village | Village | 5.1 mi | — |
| Bloomfield CDP | CDP | 5.9 mi | — |
| Fowler CDP | CDP | 6.6 mi | — |
Sources & Data Provenance
- Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 1700148320. • Official Source Dataset →
- Socioeconomic & Housing Metrics: U.S. Census Bureau American Community Survey (ACS) 5-year estimates and Population Estimates Program (PEP). Margin of Error (MOE) intervals are reported where published; suppressed values are never estimated or replaced with false zeros.
- Civic Directory Datasets: Centers for Medicare & Medicaid Services (CMS Hospital Directory), National Center for Education Statistics (NCES IPEDS Postsecondary Directory), and Institute of Museum and Library Services (IMLS Public Libraries Survey). Airport landing facilities are provided by airport-data.com.
- Weather & Climate Observations: National Oceanic and Atmospheric Administration (NOAA) U.S. Climate Normals 1991–2020 and National Weather Service (NWS) point forecasts.