Alton township, Illinois
Alton township profile, demographic data, and geographic information.
Alton township is a geographic entity located in Madison County, Illinois. As of official census estimates, it has a reported population of 25,013. The land area covers 15.63 sq mi. [1]
Demographics & Population
| Demographic Metric | Estimate / Count | Margin of Error | Survey Period / Source |
|---|---|---|---|
| Total Population (2025 PEP Estimate) | 25,013 | — | 2025 / Census |
| Median Age | 38 yrs | ±1.3 | 2020-2024 / Census ACS 5-Year 2024 |
| Total Households | 10,714 | ±390 | 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 | 12,551 | ±431 |
| Occupied Housing Units | 10,714 | ±390 |
| Vacant Housing Units | 1,837 | ±239 |
| Median Home Value | $103,700 | ±$4,876 |
| Median Gross Rent | $1,015 | ±$48 |
Source: U.S. Census Bureau ACS 5-Year (2020-2024).
Economy & Workforce
| Economic Metric | Estimate / Value | Margin of Error |
|---|---|---|
| Median Household Income | $54,568 | ±$4,656 |
| Per Capita Income | $29,314 | ±$1,601 |
| Poverty Rate | 21% | ±3.3% |
| Population Below Poverty Level | 5,203 | ±825 |
| Unemployment Rate | 5.4% | ±1.5% |
| Civilian Labor Force, Employed | 11,604 | ±551 |
| Broadband Internet Rate | 90.5% | ±1.3% |
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 |
|---|---|---|---|
|
TOWNSHIP OF ALTON
GUS Population: 24,967 (2024)
ID: 204323
|
Township | Official Local Government |
Contact: SUPERVISOR
100A E BROADWAY, ALTON IL 62002-6217
|
|
GUS Population: 263,017 (2024)
ID: 162149
|
County | Official County Government |
Contact: AUDITOR
157 N MAIN ST, RM 382, EDWARDSVILLE IL 62025-1965
|
Education
Listing 10 local institutions (NCES 2024-2025)
External reference via K12Guides
| Institution | Type | Grades | Location |
|---|---|---|---|
| Regular School Alton | 09-12 | Alton, IL | |
| Regular School Alton | 06-08 | Alton, IL | |
| Regular School Alton | 03-05 | Alton, IL | |
| Regular School Alton | KG-02 | Alton, IL | |
| Special Education School Alton | 07-12 | Alton, IL | |
| Regular School Alton | KG-02 | Alton, IL | |
| Alternative School Alton | KG-12 | Alton, IL | |
| Regular School Alton | 02-05 | Alton, IL | |
| Regular School Nearby | KG-08 | FLORISSANT, MO | |
| Regular School Nearby | PK-05 | HAZELWOOD, MO |
Source: k12guides.com.
Community Facilities & Infrastructure
Displaying 10 civic institutions across 2 datasets queried
CMS • IPEDS • IMLS
| Facility Name | Category | Relationship | Address / Location | Contact |
|---|---|---|---|---|
|
CALC Institute of Technology
|
College Vocational | 2.1 mi away | 200A North Center Dr, Alton, IL, 62002 |
6184740616
|
|
ALTON SQUARE LIBRARY
|
Library | 2.0 mi away | 132 ALTON SQUARE MALL, ALTON, IL, 62002 |
(618) 462-0677
|
|
Lewis and Clark Community College
|
College | 4.0 mi away | 5800 Godfrey Rd, Godfrey, IL, 62035 |
6184687000
|
|
DOWNTOWN LIBRARY
|
Library | 2.1 mi away | 326 BELLE STREET, ALTON, IL, 62002 |
(618) 462-0677
|
|
Principia College
|
College | 11.1 mi away | 1 Maybeck Place, Elsah, IL, 62028-9799 |
6183742131
|
|
HAYNER PUBLIC LIBRARY DISTRICT
|
Library | 2.2 mi away | 401 STATE STREET, ALTON, IL, 62002 |
(618) 462-0677
|
|
Southern Illinois University Edwardsville
|
College | 11.2 mi away | Il State Rte 157, Edwardsville, IL, 62026-1259 |
8883285168
|
|
EAST ALTON PUBLIC LIBRARY DISTRICT
|
Library | 3.1 mi away | 250 WASHINGTON AVENUE, EAST ALTON, IL, 62024 |
(618) 259-0787
|
|
University of Missouri-St Louis
|
College | 15.9 mi away | One University Boulevard, Saint Louis, MO, 63121-4400 |
3145165000
|
|
WOOD RIVER PUBLIC LIBRARY
|
Library | 4.4 mi away | 326 EAST FERGUSON AVENUE, WOOD RIVER, IL, 62095 |
(618) 254-4832
|
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 ALTON - MELVIN PRICE L&D, IL US, located 2.6 miles from Alton township. Local microclimates, topography, and elevation may cause municipal conditions to differ.
| Month | High (°F) | Low (°F) | Mean (°F) | Precip (in) | Snow (in) |
|---|---|---|---|---|---|
| January | 39.0° | 21.7° | 30.3° | 2.53" | — |
| February | 43.7° | 25.2° | 34.5° | 2.52" | — |
| March | 53.5° | 34.7° | 44.1° | 3.46" | — |
| April | 66.1° | 45.2° | 55.6° | 4.92" | — |
| May | 75.0° | 56.1° | 65.6° | 5.46" | — |
| June | 83.7° | 65.6° | 74.6° | 3.40" | — |
| July | 87.3° | 69.3° | 78.3° | 3.95" | — |
| August | 86.0° | 67.3° | 76.6° | 3.30" | — |
| September | 80.1° | 59.8° | 70.0° | 3.38" | — |
| October | 67.9° | 48.0° | 57.9° | 2.93" | — |
| November | 54.3° | 36.5° | 45.4° | 3.43" | — |
| December | 43.5° | 27.1° | 35.3° | 2.59" | — |
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 |
|---|---|---|---|
| Alton city | City | 0.0 mi | — |
| East Alton village | Village | 2.6 mi | — |
| West Alton city | City | 4.0 mi | — |
| Rosewood Heights CDP | CDP | 4.3 mi | — |
| Wood River city | City | 4.8 mi | — |
| Godfrey village | Village | 5.1 mi | — |
Sources & Data Provenance
- Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 1711901127. • 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.