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Zip Code information for Janesville, Illinois.

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Illinois Zip Codes

Janesville Zip Codes

What are the Janesville, Illinois Zip Codes for 2020, 2019

Primary Zip Codes for Janesville

Zip Code	Primary City	Secondary City
62435	Janesville
62440	Lerna	Janesville

Cities sharing Zip Codes with Janesville

Zip Code	Primary City	Secondary City	More Information
62440	Lerna	Janesville

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Content provided by the US Census bureau for the years 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024.

The Census Bureau can also provide statisics and demographics for 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 and 2009 on their website