Saint Johns MI ZIP Code
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Saint Johns city is located in Michigan State, Clinton County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Saint Johns MI zip code by its streets and block numbers if we have some of the Saint Johns streets loaded in our website
Saint Johns Area Code is 989 and Time Zone is Eastern (GMT -05:00).
Saint Johns Zip Code - Michigan
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Saint Johns City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Saint Johns ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Saint Johns, Michigan.
The Saint Johns Zip Code is 48879.
If you want to send a mail to Saint Johns City, you should use the 48879 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Saint Johns 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 48879 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Saint Johns 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.