Collinsville township, Illinois
Collinsville township profile, demographic data, and geographic information.
Collinsville township is a geographic entity located in Madison County, Illinois. As of official census estimates, it has a reported population of 35,276. The land area covers 34.85 sq mi. [1]
Demographics & Population
| Demographic Metric | Estimate / Count | Margin of Error | Survey Period / Source |
|---|---|---|---|
| Total Population (2025 PEP Estimate) | 35,276 | — | 2025 / Census |
| Median Age | 42.8 yrs | ±2.3 | 2020-2024 / Census ACS 5-Year 2024 |
| Total Households | 15,722 | ±516 | 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 | 16,436 | ±520 |
| Occupied Housing Units | 15,722 | ±516 |
| Vacant Housing Units | 714 | ±220 |
| Median Home Value | $192,500 | ±$10,816 |
| Median Gross Rent | $1,072 | ±$50 |
Source: U.S. Census Bureau ACS 5-Year (2020-2024).
Economy & Workforce
| Economic Metric | Estimate / Value | Margin of Error |
|---|---|---|
| Median Household Income | $77,785 | ±$5,623 |
| Per Capita Income | $43,599 | ±$2,345 |
| Poverty Rate | 9.8% | ±2.4% |
| Population Below Poverty Level | 3,443 | ±825 |
| Unemployment Rate | 4.7% | ±1.4% |
| Civilian Labor Force, Employed | 18,065 | ±780 |
| Broadband Internet Rate | 93.2% | ±1.8% |
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 COLLINSVILLE
GUS Population: 35,211 (2024)
ID: 163156
|
Township | Official Local Government |
Contact: SUPERVISOR
305 E MAIN ST, COLLINSVILLE IL 62234-3008
|
|
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 |
|---|---|---|---|
| Career and Technical School Collinsville | 11-12 | Collinsville, IL | |
| Regular School Collinsville | 09-12 | Collinsville, IL | |
| Regular School Collinsville | 07-08 | Collinsville, IL | |
| Regular School Collinsville | 04-06 | Collinsville, IL | |
| Regular School Collinsville | PK-04 | Collinsville, IL | |
| Regular School Collinsville | PK-04 | Collinsville, IL | |
| Regular School Collinsville | KG-04 | Collinsville, IL | |
| Regular School Collinsville | KG-04 | Collinsville, IL | |
| Regular School Collinsville | PK-04 | Collinsville, IL | |
| Regular School Nearby | 06-08 | ST. LOUIS, 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 |
|---|---|---|---|---|
|
Southern Illinois University Edwardsville
|
College | 6.6 mi away | Il State Rte 157, Edwardsville, IL, 62026-1259 |
8883285168
|
|
COLLINSVILLE MEMORIAL LIBRARY CENTER
|
Library | 2.2 mi away | 408 WEST MAIN STREET, COLLINSVILLE, IL, 62234 |
(618) 344-1112
|
|
McKendree University
|
College | 10.9 mi away | 701 College Rd, Lebanon, IL, 62254-1291 |
6185374481
|
|
MARYVILLE COMMUNITY LIBRARY DISTRICT
|
Library | 3.0 mi away | 15 PROFESSIONAL PARK DRIVE, MARYVILLE, IL, 62062 |
(618) 288-3801
|
|
Stevens-The Institute of Business & Arts
|
College | 12.7 mi away | 1521 Washington Avenue, Saint Louis, MO, 63103 |
31442109491101
|
|
GLEN CARBON CENTENNIAL LIBRARY
|
Library | 3.4 mi away | 198 SOUTH MAIN STREET, GLEN CARBON, IL, 62034 |
(618) 288-1212
|
|
Southwestern Illinois College
|
College | 13.1 mi away | 2500 Carlyle Ave, Belleville, IL, 62221-5899 |
6182352700
|
|
CASEYVILLE PUBLIC LIBRARY DISTRICT
|
Library | 5.1 mi away | 419 SOUTH SECOND STREET, CASEYVILLE, IL, 62232 |
(618) 345-5848
|
|
Ponce Health Sciences University-St Louis
|
College | 13.4 mi away | 2351 Market St., St. Louis, MO, 63103 |
3148871350
|
|
TRI-TOWNSHIP PUBLIC LIBRARY DISTRICT
|
Library | 5.6 mi away | 209 SOUTH MAIN STREET, TROY, IL, 62294 |
(618) 667-2133
|
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 CAHOKIA ST LOUIS AP, IL US, located 13.0 miles from Collinsville township. Local microclimates, topography, and elevation may cause municipal conditions to differ.
| Month | High (°F) | Low (°F) | Mean (°F) | Precip (in) | Snow (in) |
|---|---|---|---|---|---|
| January | 40.2° | 24.1° | 32.1° | 2.46" | — |
| February | 45.6° | 27.6° | 36.6° | 1.96" | — |
| March | 56.3° | 36.0° | 46.1° | 3.27" | — |
| April | 67.5° | 45.5° | 56.5° | 4.48" | — |
| May | 76.7° | 56.5° | 66.6° | 4.84" | — |
| June | 85.7° | 64.7° | 75.2° | 4.36" | — |
| July | 89.0° | 68.8° | 78.9° | 3.70" | — |
| August | 87.8° | 66.1° | 76.9° | 3.68" | — |
| September | 80.7° | 57.1° | 68.9° | 3.36" | — |
| October | 69.4° | 46.1° | 57.7° | 3.07" | — |
| November | 55.3° | 35.9° | 45.6° | 3.34" | — |
| December | 44.3° | 28.6° | 36.4° | 2.32" | — |
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 |
|---|---|---|---|
| Collinsville city | City | 2.0 mi | — |
| Maryville village | Village | 2.2 mi | — |
| Pontoon Beach village | Village | 4.0 mi | — |
| Glen Carbon village | Village | 4.0 mi | — |
| Troy city | City | 5.1 mi | — |
| Caseyville village | Village | 5.7 mi | — |
Sources & Data Provenance
- Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 1711915612. • 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.