Ione WA ZIP Code
Ione city is located in Washington State, Pend Oreille County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Ione WA zip code by its streets and block numbers if we have some of the Ione streets loaded in our website
Ione Area Code is 509 and Time Zone is Pacific (GMT -08:00).
Ione Zip Code - Washington
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Ione City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Ione ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Ione, Washington.
The Ione Zip Code is 99139.
If you want to send a mail to Ione City, you should use the 99139 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Ione 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 99139 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Ione 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 Washington.