Janesville WI ZIP Code


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Janesville city is located in Wisconsin State, Rock County and has a unique zip code assigned by the US Postal Service Office.


You can search for the Janesville WI zip code by its streets and block numbers if we have some of the Janesville streets loaded in our website

Janesville Area Code is 608 and Time Zone is Central (GMT -06:00).



Janesville Zip Code - Wisconsin

The US ZIP Code basic format consists of five decimal numerical digits assigned to the Janesville City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Janesville ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Janesville, Wisconsin.

The Janesville Zip Code is 53545, 53546, 53547, 53548.



If you want to send a mail to Janesville City, you should use the 53545, 53546, 53547, 53548 Zip Code.

In 1983, the U.S. Postal Service introduced an expanded Janesville ZIP code system that it called ZIP+4, often called "plus-four codes", "add-on codes", or "add ons". A ZIP+4 code uses the basic 53545, 53546, 53547, 53548 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Janesville city block, a group of apartments, an individual high-volume receiver of mail or any other unit that could use an extra identifier to aid in efficient mail sorting and delivery in Wisconsin.


Janesville, Wisconsin - MAP



What is the Janesville Zip Code?

The Janesville Zip Code in Wisconsin is 53545, 53546, 53547, 53548.


ZIP Plus 4 Janesville - US Streets Zip Codes

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Search Janesville Zip Code

What is the zip code for Janesville WI?

53545, 53546, 53547, 53548

Janesville, Wisconsin - US Zip Code



Janesville ZIP Code Lookup

53545, 53546, 53547, 53548 Zip Code File:
Zip Code: 53545, 53546, 53547, 53548,
City: Janesville
Janesville Area Code: 608
Janesville, WI - Time Zone: Central (GMT -06:00)
County: Rock
City Alias: Janesville, Janesville, Janesville, Janesville
State: Wisconsin
State Abb: WI



Wisconsin Zip+4 - Nearby Janesville Cities

Cities near Janesville in Wisconsin
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