Seaside OR ZIP Code
Seaside city is located in Oregon State, Clatsop County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Seaside OR zip code by its streets and block numbers if we have some of the Seaside streets loaded in our website
Seaside Area Code is 503/971 and Time Zone is Pacific (GMT -08:00).
Seaside Zip Code - Oregon
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Seaside City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Seaside ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Seaside, Oregon.
The Seaside Zip Code is 97138.
If you want to send a mail to Seaside City, you should use the 97138 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Seaside 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 97138 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Seaside 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 Oregon.