Royal IA ZIP Code
Royal city is located in Iowa State, Clay County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Royal IA zip code by its streets and block numbers if we have some of the Royal streets loaded in our website
Royal Area Code is 712 and Time Zone is Central (GMT -06:00).
Royal Zip Code - Iowa
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Royal City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Royal ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Royal, Iowa.
The Royal Zip Code is 51357.
If you want to send a mail to Royal City, you should use the 51357 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Royal 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 51357 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Royal 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.