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Zip Code information for Alton, Iowa.

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Alton Zip Codes

What are the Alton, Iowa Zip Codes for 2020, 2019

Primary Zip Codes for Alton

Zip Code	Primary City	Secondary City
51003	Alton	Carnes

Cities sharing Zip Codes with Alton

Zip Code	Primary City	Secondary City	More Information
51003	Alton	Carnes

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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