Thornton WA ZIP Code

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

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

Thornton Area Code is 509 and Time Zone is Pacific (GMT -08:00).

Thornton Zip Code - Washington

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

The Thornton Zip Code is 99176.

If you want to send a mail to Thornton City, you should use the 99176 Zip Code.

In 1983, the U.S. Postal Service introduced an expanded Thornton 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 99176 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Thornton 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.

Thornton, Washington - MAP

What is the Thornton Zip Code?

The Thornton Zip Code in Washington is 99176.

ZIP Plus 4 Thornton - US Streets Zip Codes

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

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What is the zip code for Thornton WA?


Thornton, Washington -

Thornton ZIP Code Lookup

99176 Zip Code File:
Zip Code: 99176,
City: Thornton
Thornton Area Code: 509
Thornton, WA - Time Zone: Pacific (GMT -08:00)
County: Whitman
City Alias: Thornton
State: Washington
State Abb: WA

Washington Zip+4 - Nearby Thornton Cities

Cities near Thornton in Washington
(straight line)

View more Washington zip codes

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