Harlem township, Illinois
Harlem township profile, demographic data, and geographic information.
Harlem township is a geographic entity located in Stephenson County, Illinois. As of official census estimates, it has a reported population of 1,949. The land area covers 31.56 sq mi. [1]
Demographics & Population
| Demographic Metric | Estimate / Count | Margin of Error | Survey Period / Source |
|---|---|---|---|
| Total Population (2025 PEP Estimate) | 1,949 | — | 2025 / Census |
| Median Age | 57.8 yrs | ±2.6 | 2020-2024 / Census ACS 5-Year 2024 |
| Total Households | 886 | ±166 | 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 | 904 | ±168 |
| Occupied Housing Units | 886 | ±166 |
| Vacant Housing Units | 18 | ±20 |
| Median Home Value | $173,000 | ±$16,848 |
| Median Gross Rent | $891 | ±$752 |
Source: U.S. Census Bureau ACS 5-Year (2020-2024).
Economy & Workforce
| Economic Metric | Estimate / Value | Margin of Error |
|---|---|---|
| Median Household Income | $95,000 | ±$17,112 |
| Per Capita Income | $45,917 | ±$4,768 |
| Poverty Rate | 6.1% | ±2.7% |
| Population Below Poverty Level | 121 | ±57 |
| Unemployment Rate | 0.4% | ±0.6% |
| Civilian Labor Force, Employed | 1,076 | ±325 |
| Broadband Internet Rate | 91.3% | ±9.9% |
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 HARLEM
GUS Population: 1,946 (2024)
ID: 163324
|
Township | Official Local Government |
Contact: SUPERVISOR
PO BOX 420, FREEPORT IL 61032-0420
|
|
GUS Population: 43,088 (2024)
ID: 204264
|
County | Official County Government |
Contact: ADMINISTRATOR
50 W DOUGLAS ST, STE 1002, FREEPORT IL 61032-4136
|
Education
Listing 10 local institutions (NCES 2024-2025)
External reference via K12Guides
| Institution | Type | Grades | Location |
|---|---|---|---|
| Regular School Nearby | PK-04 | Freeport, IL | |
| Career and Technical School Nearby | 09-12 | Freeport, IL | |
| Regular School Nearby | 05-06 | Freeport, IL | |
| Regular School Nearby | PK-04 | Freeport, IL | |
| Regular School Nearby | PK-06 | Dakota, IL | |
| Regular School Nearby | 07-12 | Dakota, IL | |
| Regular School Nearby | PK-06 | Shannon, IL | |
| Regular School Nearby | PK-04 | Freeport, IL | |
| Regular School Nearby | 01-05 | Forreston, IL | |
| Regular School Nearby | 06-12 | Forreston, 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 |
|---|---|---|---|---|
|
Highland Community College
|
College | 3.8 mi away | 2998 W Pearl City Rd, Freeport, IL, 61032-9341 |
8152356121
|
|
FREEPORT PUBLIC LIBRARY
|
Library | 4.7 mi away | 100 EAST DOUGLAS STREET, FREEPORT, IL, 61032 |
(815) 233-3000
|
|
LENA COMMUNITY DISTRICT LIBRARY
|
Library | 7.2 mi away | 300 WEST MASON STREET, LENA, IL, 61048 |
(815) 369-3180
|
|
PEARL CITY PUBLIC LIBRARY DISTRICT
|
Library | 8.0 mi away | 221 SOUTH MAIN STREET, PEARL CITY, IL, 61062 |
(815) 443-2832
|
|
FORRESTON PUBLIC LIBRARY
|
Library | 15.7 mi away | 204 FIRST AVENUE, FORRESTON, IL, 61030 |
(815) 938-2624
|
|
STOCKTON TOWNSHIP PUBLIC LIBRARY
|
Library | 15.7 mi away | 140 WEST BENTON AVENUE, STOCKTON, IL, 61085 |
(815) 947-2030
|
|
PECATONICA PUBLIC LIBRARY DISTRICT
|
Library | 17.4 mi away | 400 WEST ELEVENTH STREET, PECATONICA, IL, 61063 |
(815) 239-2616
|
|
LANARK PUBLIC LIBRARY
|
Library | 17.4 mi away | 111-B SOUTH BROAD STREET, LANARK, IL, 61046 |
(815) 493-2166
|
|
WARREN TOWNSHIP PUBLIC LIBRARY
|
Library | 18.4 mi away | 210 BURNETT AVENUE, WARREN, IL, 61087 |
(815) 745-2076
|
|
MONROE PUBLIC LIBRARY
|
Library | 18.8 mi away | 925 16TH AVE., MONROE, WI, 53566 |
(608) 328-7010
|
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 FREEPORT WASTE WTP, IL US, located 5.6 miles from Harlem township. Local microclimates, topography, and elevation may cause municipal conditions to differ.
| Month | High (°F) | Low (°F) | Mean (°F) | Precip (in) | Snow (in) |
|---|---|---|---|---|---|
| January | 27.9° | 11.3° | 19.6° | 1.58" | 9.7" |
| February | 32.6° | 14.8° | 23.7° | 1.65" | 8.5" |
| March | 44.9° | 25.8° | 35.4° | 2.15" | 3.8" |
| April | 58.2° | 36.4° | 47.3° | 3.66" | 0.8" |
| May | 69.9° | 48.4° | 59.1° | 4.36" | 0.0" |
| June | 79.3° | 58.6° | 69.0° | 5.26" | 0.0" |
| July | 82.4° | 62.3° | 72.4° | 4.21" | 0.0" |
| August | 80.7° | 59.9° | 70.3° | 4.21" | 0.0" |
| September | 74.3° | 51.0° | 62.6° | 4.11" | 0.0" |
| October | 61.5° | 39.3° | 50.4° | 2.98" | 0.2" |
| November | 46.0° | 28.2° | 37.1° | 2.36" | 2.6" |
| December | 33.3° | 17.9° | 25.6° | 1.83" | 8.9" |
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 |
|---|---|---|---|
| Willow Lake CDP | CDP | 3.4 mi | — |
| Cedarville village | Village | 4.4 mi | — |
| Freeport city | City | 4.6 mi | — |
| Lena village | Village | 6.9 mi | — |
| Pearl City village | Village | 7.9 mi | — |
| Orangeville village | Village | 9.5 mi | — |
Sources & Data Provenance
- Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 1717732902. • 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.