Union MI ZIP Code
Union city is located in Michigan State, Cass County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Union MI zip code by its streets and block numbers if we have some of the Union streets loaded in our website
Union Area Code is 269 and Time Zone is Eastern (GMT -05:00).
Union Zip Code - Michigan
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, Michigan.
The Union Zip Code is 49130.
If you want to send a mail to Union City, you should use the 49130 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 49130 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 Michigan.