Janesville, WI ZIP Codes
ZIP code, county, time zone and coordinates of Janesville, Wisconsin
The ZIP code of Janesville, WI is 53545. Janesville has 2 ZIP codes: 53545, 53546. It is in Rock County.
Mailing address format for Janesville
John Smith 123 Main St JANESVILLE WI 53545 USA
USPS prefers capital letters without punctuation. Check the exact ZIP+4 for a street address on the USPS website.
All ZIP codes in Janesville
| ZIP code | Population | Area | |
|---|---|---|---|
| 53545 | — | 22.5 sq mi | Main |
| 53546 | — | 81.1 sq mi |
ZIP Code Tabulation Areas (ZCTA), U.S. Census Bureau. A ZCTA can cover parts of more than one town.
Where is Janesville? Location, county and time zone
- State
- Wisconsin
- County
- Rock County
- GPS coordinates
- 42.68470, -89.01317
- Elevation
- 853 ft (260 m)
- Time zone
- America/ChicagoCST · UTC-06:00
- Population
- 65,615
Map of Janesville, WI 53545
Tap a place on the map to see it in Street View below. Map: © OpenStreetMap contributors.
Janesville Street View
Drag to look around. Tap any place on the map above, or the "Street View" button on a card, to jump there.
Open in Google Maps ›ZIP codes near Janesville
Janesville ZIP code: FAQ
What is the ZIP code for Janesville, WI?
The main ZIP code for Janesville, WI is 53545. All ZIP codes: 53545, 53546.
How many ZIP codes does Janesville have?
Janesville has 2 ZIP codes.
What county is Janesville, WI in?
Janesville is in Rock County, Wisconsin.
What time zone is Janesville in?
Janesville is in the America/Chicago time zone (CST, UTC-06:00 right now).
What are the coordinates of Janesville?
Latitude 42.68470, longitude -89.01317.
Last updated: