Janesville Zip Codes - Rock County WI

Janesville, WI Zip Code Map

Janesville, WI is a city located in Rock County, Wisconsin and has a land area of 178.59 square miles (462.55 km2). The water area for the city is 2.01 square miles or 5.21 km2. There are 4 total unique zip codes in Janesville, Wisconsin. The area code(s) for Janesville is 608.

Zip Codes for Janesville, WI (4)
Zip Code
 City County
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53545 Janesville Rock
53546 Janesville Rock
53547 Janesville Rock
53548 Janesville Rock

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