Union IA ZIP Code

Union city is located in Iowa State, Hardin County and has a unique zip code assigned by the US Postal Service Office.


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

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



Union Zip Code - Iowa

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

The Union Zip Code is 50258.



If you want to send a mail to Union City, you should use the 50258 Zip Code.

In 1983, the U.S. Postal Service introduced an expanded Union 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 50258 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Union 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.


Union, Iowa - MAP



What is the Union Zip Code?

The Union Zip Code in Iowa is 50258.


ZIP Plus 4 Union - US Streets Zip Codes

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




Search Union Zip Code

What is the zip code for Union IA?

50258

Union, Iowa - US Zip Code



Union ZIP Code Lookup

50258 Zip Code File:
Zip Code: 50258,
City: Union
Union Area Code: 641
Union, IA - Time Zone: Central (GMT -06:00)
County: Hardin
City Alias: Union
State: Iowa
State Abb: IA



Iowa Zip+4 - Nearby Union Cities

Cities near Union in Iowa
(straight line)


View more Iowa zip codes



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