Maple Valley WA ZIP Code
Maple Valley 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 Maple Valley WA zip code by its streets and block numbers if we have some of the Maple Valley streets loaded in our website
Maple Valley Area Code is 425 and Time Zone is Pacific (GMT -08:00).
Maple Valley Zip Code - Washington
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Maple Valley City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Maple Valley ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Maple Valley, Washington.
The Maple Valley Zip Code is 98038.
If you want to send a mail to Maple Valley City, you should use the 98038 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Maple Valley 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 98038 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Maple Valley 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.