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Zip Code information for Mason City, Iowa.

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Mason City Zip Codes

What are the Mason City, Iowa Zip Codes for 2020, 2019

Primary Zip Codes for Mason City

Zip Code	Primary City	Secondary City
50401	Mason City	Mason City, Central Heights, Emery, Freeman, Hanford, Portland, Winnebago Heights
50402	Mason City

Cities sharing Zip Codes with Mason City

Zip Code	Primary City	Secondary City	More Information
50401	Mason City	Central Heights
50401	Mason City	Emery
50401	Mason City	Freeman
50401	Mason City	Hanford
50401	Mason City	Portland
50401	Mason City	Winnebago Heights

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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