Iron Mountain MI ZIP Code
Iron Mountain city is located in Michigan State, Dickinson County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Iron Mountain MI zip code by its streets and block numbers if we have some of the Iron Mountain streets loaded in our website
Iron Mountain Area Code is 906 and Time Zone is Central (GMT -06:00).
Iron Mountain Zip Code - Michigan
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Iron Mountain City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Iron Mountain ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Iron Mountain, Michigan.
The Iron Mountain Zip Code is 49801.
If you want to send a mail to Iron Mountain City, you should use the 49801 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Iron Mountain 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 49801 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Iron Mountain 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.