Poston AZ ZIP Code
Poston city is located in Arizona State, La Paz County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Poston AZ zip code by its streets and block numbers if we have some of the Poston streets loaded in our website
Poston Area Code is 928 and Time Zone is Mountain (GMT -07:00).
Poston Zip Code - Arizona
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Poston City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Poston ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Poston, Arizona.
The Poston Zip Code is 85371.
If you want to send a mail to Poston City, you should use the 85371 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Poston 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 85371 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Poston 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 Arizona.