Kelso WA ZIP Code

Kelso city is located in Washington State, Cowlitz County and has a unique zip code assigned by the US Postal Service Office.


You can search for the Kelso WA zip code by its streets and block numbers if we have some of the Kelso streets loaded in our website

Kelso Area Code is 360 and Time Zone is Pacific (GMT -08:00).



Kelso Zip Code - Washington

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

The Kelso Zip Code is 98626.



If you want to send a mail to Kelso City, you should use the 98626 Zip Code.

In 1983, the U.S. Postal Service introduced an expanded Kelso 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 98626 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Kelso 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.


Kelso, Washington - MAP




What is the Kelso Zip Code?

The Kelso Zip Code in Washington is 98626.


ZIP Plus 4 Kelso - US Streets Zip Codes

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


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Search Kelso Zip Code

What is the zip code for Kelso WA?

98626

Kelso, Washington - US Zip Code



Kelso ZIP Code Lookup

98626 Zip Code File:
Zip Code: 98626,
City: Kelso
Kelso Area Code: 360
Kelso, WA - Time Zone: Pacific (GMT -08:00)
County: Cowlitz
City Alias: Kelso
State: Washington
State Abb: WA



Washington Zip+4 - Nearby Kelso Cities

Cities near Kelso in Washington
(straight line)


View more Washington zip codes