Ionia MI ZIP Code
Ionia city is located in Michigan State, Ionia County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Ionia MI zip code by its streets and block numbers if we have some of the Ionia streets loaded in our website
Ionia Area Code is 616 and Time Zone is Eastern (GMT -05:00).
Ionia Zip Code - Michigan
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Ionia City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Ionia ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Ionia, Michigan.
The Ionia Zip Code is 48846.
If you want to send a mail to Ionia City, you should use the 48846 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Ionia 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 48846 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Ionia 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.