Janesville
City in Rock County, Wisconsin
Janesville is a city in Rock County, Wisconsin, with 65,615 residents (2020 Census). It sits at 853 ft (260 m) above sea level. The nearest town is Milton, 7.2 miles NE.
- 65,615residents (2020 Census)
- 853 ftelevation · 260 m
- 34.6 sq miland area · 89.7 km²
- 1,894 / sq mipopulation density
- 53545main ZIP code (2 in total)
About Janesville
Janesville is a city in, and the county seat of Rock County, Wisconsin, United States. The population was 65,615 at the 2020 census, and was estimated at 66,428 in 2024, making it the tenth-most populous city in Wisconsin. The Janesville–Beloit Metropolitan statistical area, consisting solely of Rock County, has an estimated 165,461 residents in the 2024 estimate. It is located along the Rock River in southern Wisconsin.
Text: Wikipedia · CC BY-SA 4.0
Janesville weather: 7-day forecast
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Live webcams in Janesville
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Living in Janesville
- Median household income
- $73,446
- Median home value
- $223,400
- Median rent
- $1,054/mo
- Median age
- 40.7
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Map of Janesville
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Open in Google Maps ›Janesville, WI population
Janesville had 65,615 residents in the 2020 Census.
| 2020 Census | 65,615 |
|---|---|
| Density | 1,894 per sq mi (731 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Janesville at a glance
| State | Wisconsin (WI) |
|---|---|
| County | Rock County |
| Type | City |
| Population | 65,615 (2020) |
| Land area | 34.65 sq mi (89.7 km²) |
| Water area | 0.60 sq mi (1.56 km²) |
| Elevation | 853 ft (260 m) |
| Coordinates | 42.6847° N, 89.0132° W |
| ZIP codes | 53545, 53546 |
| Official website | ci.janesville.wi.us |
| Census code (GEOID) | 5537825 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Janesville
- Milton7.2 mi NE
- Hanover8.6 mi W
- Shopiere8.7 mi SE
- Footville10.0 mi W
- Fulton10.1 mi NW
- Edgerton11.0 mi N
- Beloit11.1 mi S
- Clinton11.5 mi SE
- Lake Koshkonong12.7 mi N
- Orfordville13.0 mi W
- South Beloit, IL13.8 mi S
- Lake Lorraine14.4 mi E
Straight-line distance between town centers.
Frequently asked questions about Janesville
What county is Janesville in?
Janesville is in Rock County, Wisconsin.
What is the population of Janesville, WI?
65,615 people lived in Janesville at the 2020 Census.
What is the ZIP code of Janesville, WI?
The main ZIP code is 53545. Other ZIP codes: 53546.
What is the elevation of Janesville?
853 feet (260 m) above sea level.
What towns are near Janesville?
Milton (7.2 mi), Hanover (8.6 mi), Shopiere (8.7 mi), Footville (10.0 mi), Fulton (10.1 mi).
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