Mason City IA ZIP Code

Mason City city is located in Iowa State, Cerro Gordo County and has a unique zip code assigned by the US Postal Service Office.


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

Mason City Area Code is 641 and Time Zone is Central (GMT -06:00).



Mason City Zip Code - Iowa

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

The Mason City Zip Code is 50401, 50402.



If you want to send a mail to Mason City City, you should use the 50401, 50402 Zip Code.

In 1983, the U.S. Postal Service introduced an expanded Mason City 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 50401, 50402 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Mason City 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 Iowa.


Mason City, Iowa - MAP



What is the Mason City Zip Code?

The Mason City Zip Code in Iowa is 50401, 50402.


ZIP Plus 4 Mason City - US Streets Zip Codes

By pressing keys ctrol + F you can search Mason City zip codes by its streets, highways, and know the ZIP+4 US ZIP Code


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Search Mason City Zip Code

What is the zip code for Mason City IA?

50401, 50402

Mason City, Iowa - US Zip Code



Mason City ZIP Code Lookup

50401, 50402 Zip Code File:
Zip Code: 50401, 50402,
City: Mason City
Mason City Area Code: 641
Mason City, IA - Time Zone: Central (GMT -06:00)
County: Cerro Gordo
City Alias: Hanford, Winnebago Heights, Portland, Freeman, Emery, Central Heights, Mason City, Mason City
State: Iowa
State Abb: IA



Iowa Zip+4 - Nearby Mason City Cities

Cities near Mason City in Iowa
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View more Iowa zip codes



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