Hart MI ZIP Code
Hart city is located in Michigan State, Oceana County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Hart MI zip code by its streets and block numbers if we have some of the Hart streets loaded in our website
Hart Area Code is 231 and Time Zone is Eastern (GMT -05:00).
Hart Zip Code - Michigan
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Hart City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Hart ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Hart, Michigan.
The Hart Zip Code is 49420.
If you want to send a mail to Hart City, you should use the 49420 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Hart 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 49420 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Hart 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.