Janesville city, Wisconsin
Janesville city profile, demographic data, and geographic information.
Janesville city is a geographic entity located in Rock County, Wisconsin. As of official census estimates, it has a reported population of 66,929. The land area covers 34.65 sq mi. [1]
Demographics & Population
| Demographic Metric | Estimate / Count | Margin of Error | Survey Period / Source |
|---|---|---|---|
| Total Population (2025 PEP Estimate) | 66,929 | — | 2025 / Census |
| Median Age | 40.7 yrs | ±1.2 | 2020-2024 / Census ACS 5-Year 2024 |
| Total Households | 28,326 | ±635 | 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 | 29,330 | ±557 |
| Occupied Housing Units | 28,326 | ±635 |
| Vacant Housing Units | 1,004 | ±290 |
| Median Home Value | $223,400 | ±$4,913 |
| Median Gross Rent | $1,054 | ±$40 |
Source: U.S. Census Bureau ACS 5-Year (2020-2024).
Economy & Workforce
| Economic Metric | Estimate / Value | Margin of Error |
|---|---|---|
| Median Household Income | $73,446 | ±$3,826 |
| Per Capita Income | $37,762 | ±$1,423 |
| Poverty Rate | 9% | ±1.3% |
| Population Below Poverty Level | 5,910 | ±870 |
| Unemployment Rate | 4.1% | ±1% |
| Civilian Labor Force, Employed | 33,788 | ±1,030 |
| Broadband Internet Rate | 91.3% | ±1.5% |
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: 66,428 (2024)
ID: 177224
|
Municipal | Official Local Government |
18 N JACKSON ST, PO BOX 5005, JANESVILLE WI 53547-5005
|
|
GUS Population: 165,461 (2024)
ID: 177072
|
County | Official County Government |
Contact: PLANNER III
51 S MAIN ST, JANESVILLE WI 53545-3978
|
Education
Listing 10 local institutions (NCES 2024-2025)
External reference via K12Guides
| Institution | Type | Grades | Location |
|---|---|---|---|
| Regular School Janesville | KG-12 | Janesville, WI | |
| Regular School Janesville | PK-05 | Janesville, WI | |
| Regular School Janesville | KG-03 | Janesville, WI | |
| Regular School Janesville | 09-12 | Janesville, WI | |
| Regular School Janesville | 06-08 | Janesville, WI | |
| Regular School Janesville | 06-08 | Janesville, WI | |
| Regular School Janesville | PK-03 | Janesville, WI | |
| Regular School Janesville | KG-05 | Janesville, WI | |
| Regular School Janesville | PK-05 | Janesville, WI | |
| Regular School Janesville | PK-05 | Janesville, WI |
Source: k12guides.com.
Community Facilities & Infrastructure
Displaying 10 civic institutions across 3 datasets queried
CMS • IPEDS • IMLS
| Facility Name | Category | Relationship | Address / Location | Contact |
|---|---|---|---|---|
|
MERCY HEALTH SYSTEM CORP
|
Hospital | City address association | 1000 MINERAL POINT AVE, JANESVILLE, WI, 53547 |
(608) 756-6161
|
|
Tricoci University of Beauty Culture-Janesville
|
College Vocational | 1.9 mi away | 2310 W. Court Street, Janesville, WI, 53548 |
6305283330
|
|
HEDBERG PUBLIC LIBRARY
|
Library | 0.5 mi away | 316 S. MAIN ST., JANESVILLE, WI, 53545 |
(608) 758-6600
|
|
SSM HEALTH ST MARY'S HOSPITAL - JANESVILLE
|
Hospital | City address association | 3400 EAST RACINE STREET, JANESVILLE, WI, 53546 |
(608) 373-8000
|
|
Blackhawk Technical College
|
College | 6.3 mi away | 6004 South County Road G, Janesville, WI, 53547-5009 |
6087586900
|
|
HEDBERG PUBLIC LIBRARY BOOKMOBILE
|
Library | 0.5 mi away | 316 S. MAIN ST., JANESVILLE, WI, 53545 |
(608) 758-6600
|
|
Beloit College
|
College | 12.5 mi away | 700 College St, Beloit, WI, 53511-5595 |
6083632000
|
|
HEDBERG PUBLIC LIBRARY EXPRESS
|
Library | 2.1 mi away | 2500 MILTON AVE. SUITE 120, JANESVILLE, WI, 53545 |
(608) 758-5804
|
|
First Class Cosmetology School
|
College Vocational | 12.9 mi away | 306 State Street, Beloit, WI, 53511-0000 |
6083625216
|
|
MILTON PUBLIC LIBRARY
|
Library | 7.0 mi away | 430 E. HIGH ST., #100, MILTON, WI, 53563 |
(608) 868-7462
|
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 AFTON - JANESVILLE WWTP, WI US, located 4.2 miles from Janesville city. Local microclimates, topography, and elevation may cause municipal conditions to differ.
| Month | High (°F) | Low (°F) | Mean (°F) | Precip (in) | Snow (in) |
|---|---|---|---|---|---|
| January | 28.3° | 11.6° | 19.9° | 1.63" | 10.8" |
| February | 32.4° | 14.7° | 23.5° | 1.61" | 10.1" |
| March | 44.6° | 25.4° | 35.0° | 2.06" | 4.1" |
| April | 57.9° | 36.1° | 47.0° | 3.57" | 1.3" |
| May | 69.9° | 48.0° | 58.9° | 4.09" | 0.0" |
| June | 79.9° | 58.0° | 68.9° | 4.99" | 0.0" |
| July | 83.4° | 61.7° | 72.6° | 4.19" | 0.0" |
| August | 81.7° | 59.5° | 70.6° | 4.34" | 0.0" |
| September | 75.1° | 51.0° | 63.0° | 3.73" | 0.0" |
| October | 61.7° | 39.5° | 50.6° | 2.99" | 0.2" |
| November | 46.3° | 28.5° | 37.4° | 2.33" | 2.4" |
| December | 33.5° | 18.1° | 25.8° | 1.90" | 7.7" |
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 |
|---|---|---|---|
| Janesville city | City | 0.0 mi | — |
| Milton city | City | 7.2 mi | — |
| Hanover CDP | CDP | 8.6 mi | — |
| Shopiere CDP | CDP | 8.7 mi | — |
| Footville village | Village | 10.0 mi | — |
| Fulton CDP | CDP | 10.1 mi | — |
Sources & Data Provenance
- Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 5510537825. • 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.