Issaquah WA ZIP Code


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Issaquah 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 Issaquah WA zip code by its streets and block numbers if we have some of the Issaquah streets loaded in our website

Issaquah Area Code is 425 and Time Zone is Pacific (GMT -08:00).



Issaquah Zip Code - Washington

The US ZIP Code basic format consists of five decimal numerical digits assigned to the Issaquah City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Issaquah ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Issaquah, Washington.

The Issaquah Zip Code is 98027, 98029.



If you want to send a mail to Issaquah City, you should use the 98027, 98029 Zip Code.

In 1983, the U.S. Postal Service introduced an expanded Issaquah 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 98027, 98029 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Issaquah 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.


Issaquah, Washington - MAP



What is the Issaquah Zip Code?

The Issaquah Zip Code in Washington is 98027, 98029.


ZIP Plus 4 Issaquah - US Streets Zip Codes

By pressing keys ctrol + F you can search Issaquah zip codes by its streets, highways, and know the ZIP+4 US ZIP Code


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Search Issaquah Zip Code

What is the zip code for Issaquah WA?

98027, 98029

Issaquah, Washington - US Zip Code



Issaquah ZIP Code Lookup

98027, 98029 Zip Code File:
Zip Code: 98027, 98029,
City: Issaquah
Issaquah Area Code: 425
Issaquah, WA - Time Zone: Pacific (GMT -08:00)
County: King
City Alias: Pine Lake, Coal Creek, Issaquah, Issaquah
State: Washington
State Abb: WA



Washington Zip+4 - Nearby Issaquah Cities

Cities near Issaquah in Washington
(straight line)


View more Washington zip codes



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