Greenbank WA ZIP Code
Greenbank city is located in Washington State, Island County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Greenbank WA zip code by its streets and block numbers if we have some of the Greenbank streets loaded in our website
Greenbank Area Code is 360 and Time Zone is Pacific (GMT -08:00).
Greenbank Zip Code - Washington
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Greenbank City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Greenbank ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Greenbank, Washington.
The Greenbank Zip Code is 98253.
If you want to send a mail to Greenbank City, you should use the 98253 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Greenbank 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 98253 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Greenbank 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.