Leef township, Illinois
Leef township profile, demographic data, and geographic information.
Leef township is a geographic entity located in Madison County, Illinois. As of official census estimates, it has a reported population of 611. The land area covers 29.24 sq mi. [1]
Demographics & Population
| Demographic Metric | Estimate / Count | Margin of Error | Survey Period / Source |
|---|---|---|---|
| Total Population (2025 PEP Estimate) | 611 | — | 2025 / Census |
| Median Age | 36.5 yrs | ±7.6 | 2020-2024 / Census ACS 5-Year 2024 |
| Total Households | 243 | ±63 | 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 | 258 | ±65 |
| Occupied Housing Units | 243 | ±63 |
| Vacant Housing Units | 15 | ±16 |
| Median Home Value | $199,800 | ±$21,357 |
| Median Gross Rent | Suppressed | — |
Source: U.S. Census Bureau ACS 5-Year (2020-2024).
Economy & Workforce
| Economic Metric | Estimate / Value | Margin of Error |
|---|---|---|
| Median Household Income | $114,306 | ±$23,341 |
| Per Capita Income | $43,214 | ±$6,936 |
| Poverty Rate | 3.9% | ±3% |
| Population Below Poverty Level | 24 | ±20 |
| Unemployment Rate | 1.9% | ±2.3% |
| Civilian Labor Force, Employed | 368 | ±132 |
| Broadband Internet Rate | 92.2% | ±11.1% |
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 LEEF
GUS Population: 607 (2024)
ID: 125282
|
Township | Official Local Government |
Contact: SUPERVISOR
5040 SCHWARZ RD, HIGHLAND IL 62249-3118
|
|
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 Nearby | 03-05 | Glen Carbon, IL | |
| Regular School Nearby | PK-03 | Alhambra, IL | |
| Regular School Nearby | PK | Greenville, IL | |
| Regular School Nearby | 09-12 | Greenville, IL | |
| Regular School Nearby | PK-05 | Troy, IL | |
| Alternative School Nearby | 06-12 | Troy, IL | |
| Regular School Nearby | PK-02 | Edwardsville, IL | |
| Regular School Nearby | 04-05 | Highland, IL | |
| Regular School Nearby | PK-05 | Greenville, IL | |
| Regular School Nearby | 06-08 | Greenville, 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 |
|---|---|---|---|---|
|
Greenville University
|
College | 13.6 mi away | 315 E. College Ave., Greenville, IL, 62246 |
6186642800
|
|
LOUIS LATZER MEMORIAL PUBLIC LIBRARY
|
Library | 9.2 mi away | 1001 NINTH STREET, HIGHLAND, IL, 62249 |
(618) 654-5066
|
|
Southern Illinois University Edwardsville
|
College | 19.0 mi away | Il State Rte 157, Edwardsville, IL, 62026-1259 |
8883285168
|
|
WORDEN PUBLIC LIBRARY DISTRICT
|
Library | 10.4 mi away | 111 EAST WALL STREET, WORDEN, IL, 62097 |
(618) 459-7171
|
|
McKendree University
|
College | 20.2 mi away | 701 College Rd, Lebanon, IL, 62254-1291 |
6185374481
|
|
STAUNTON PUBLIC LIBRARY
|
Library | 11.8 mi away | 306 WEST MAIN STREET, STAUNTON, IL, 62088 |
(618) 635-3852
|
|
GREENVILLE PUBLIC LIBRARY
|
Library | 13.3 mi away | 414 WEST MAIN STREET, GREENVILLE, IL, 62246 |
(618) 664-3115
|
|
MOUNT OLIVE PUBLIC LIBRARY
|
Library | 14.2 mi away | 100 NORTH PLUM STREET, MOUNT OLIVE, IL, 62069 |
(217) 999-7311
|
|
TRI-TOWNSHIP PUBLIC LIBRARY DISTRICT
|
Library | 15.7 mi away | 209 SOUTH MAIN STREET, TROY, IL, 62294 |
(618) 667-2133
|
|
EDWARDSVILLE PUBLIC LIBRARY
|
Library | 16.4 mi away | 112 SOUTH KANSAS STREET, EDWARDSVILLE, IL, 62025 |
(618) 692-7556
|
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 HILLSBORO, IL US, located 21.8 miles from Leef township. Local microclimates, topography, and elevation may cause municipal conditions to differ.
| Month | High (°F) | Low (°F) | Mean (°F) | Precip (in) | Snow (in) |
|---|---|---|---|---|---|
| January | 38.4° | 21.4° | 29.9° | 2.52" | — |
| February | 44.5° | 25.4° | 34.9° | 2.61" | — |
| March | 55.4° | 34.2° | 44.8° | 3.05" | — |
| April | 68.3° | 44.1° | 56.2° | 5.03" | — |
| May | 77.7° | 54.3° | 66.0° | 5.06" | — |
| June | 86.0° | 63.3° | 74.6° | 3.83" | — |
| July | 88.7° | 66.6° | 77.6° | 3.74" | — |
| August | 87.3° | 64.7° | 76.0° | 3.14" | — |
| September | 81.7° | 56.7° | 69.2° | 3.30" | — |
| October | 69.7° | 45.8° | 57.8° | 3.41" | — |
| November | 54.6° | 35.2° | 44.9° | 3.76" | — |
| December | 42.8° | 26.4° | 34.6° | 2.62" | — |
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 |
|---|---|---|---|
| Grantfork village | Village | 3.3 mi | — |
| Alhambra village | Village | 4.2 mi | — |
| Old Ripley village | Village | 4.9 mi | — |
| New Douglas village | Village | 6.6 mi | — |
| Highland city | City | 7.3 mi | — |
| Pocahontas village | Village | 7.4 mi | — |
Sources & Data Provenance
- Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 1711942652. • 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.