Pasco WA ZIP Code
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Pasco city is located in Washington State, Franklin County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Pasco WA zip code by its streets and block numbers if we have some of the Pasco streets loaded in our website
Pasco Area Code is 509 and Time Zone is Pacific (GMT -08:00).
Pasco Zip Code - Washington
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Pasco City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Pasco ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Pasco, Washington.
The Pasco Zip Code is 99301, 99302.
If you want to send a mail to Pasco City, you should use the 99301, 99302 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Pasco 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 99301, 99302 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Pasco 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.