Farmington WA ZIP Code

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

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

Farmington Zip Code - Washington

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

The Farmington Zip Code is 99128.

If you want to send a mail to Farmington City, you should use the 99128 Zip Code.

In 1983, the U.S. Postal Service introduced an expanded Farmington 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 99128 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Farmington 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.

Farmington, Washington - MAP

What is the Farmington Zip Code?

The Farmington Zip Code in Washington is 99128.

ZIP Plus 4 Farmington - US Streets Zip Codes

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

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What is the zip code for Farmington WA?


Farmington, Washington -

Farmington ZIP Code Lookup

99128 Zip Code File:
Zip Code: 99128,
City: Farmington
Farmington Area Code: 509
Farmington, WA - Time Zone: Pacific (GMT -08:00)
County: Whitman
City Alias: Farmington
State: Washington
State Abb: WA

Washington Zip+4 - Nearby Farmington Cities

Cities near Farmington in Washington
(straight line)

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