Janesville, Wisconsin
Janesville is a city in Rock County, Wisconsin, with an estimated population of 66,102 in 2023. It sits at 42.6847, -89.0132 in the America/Chicago time zone.
| Field | Value |
|---|---|
| Place name | Janesville |
| Type | city |
| State | Wisconsin (WI) |
| County | Rock County |
| Population (2023 est.) | 66,102 |
| Land area | 34.42 sq mi (89.16 km²) |
| Coordinates | 42.6847, -89.0132 |
| Time zone | America/Chicago |
| ZIP codes | 53545, 53546, 53547, 53548 |
| Telephone area codes | 608 |
ZIP codes and area codes for Janesville
Janesville covers 4 ZIP codes: 53545, 53546, 53547, 53548. Telephone area codes serving the area: 608. Browse all ZIP codes in Wisconsin for the full list.
Where is Janesville?
Janesville is located in Wisconsin, in Rock County. The coordinates above can be pasted directly into any map service. The nearest indexed places are listed below, which is a useful check when two states share a place name.
Nearby places
Milton 12 km · WIFootville 16 km · WIEdgerton 18 km · WIBeloit 18 km · WIClinton 18 km · WIOrfordville 21 km · WISouth Beloit 22 km · ILEvansville 25 km · WI
Other places in Rock County
Related
Frequently asked questions
What county is Janesville, WI in?
Janesville is in Rock County, Wisconsin.
What is the population of Janesville, WI?
The 2023 Census Bureau estimate is 66,102.
What time zone is Janesville in?
Janesville is in the America/Chicago time zone.