Sammamish WA ZIP Code
Sammamish city is located in Washington State, King County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Sammamish WA zip code by its streets and block numbers if we have some of the Sammamish streets loaded in our website
Sammamish Area Code is 425 and Time Zone is Pacific (GMT -08:00).
Sammamish Zip Code - Washington
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Sammamish City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Sammamish ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Sammamish, Washington.
The Sammamish Zip Code is 98074, 98075.
If you want to send a mail to Sammamish City, you should use the 98074, 98075 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Sammamish 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 98074, 98075 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Sammamish 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.