Superior IA ZIP Code
Superior city is located in Iowa State, Dickinson County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Superior IA zip code by its streets and block numbers if we have some of the Superior streets loaded in our website
Superior Area Code is 712 and Time Zone is Central (GMT -06:00).
Superior Zip Code - Iowa
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Superior City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Superior ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Superior, Iowa.
The Superior Zip Code is 51363.
If you want to send a mail to Superior City, you should use the 51363 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Superior 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 51363 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Superior 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 Iowa.