Seward AK ZIP Code
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Seward city is located in Alaska State, Kenai Peninsula County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Seward AK zip code by its streets and block numbers if we have some of the Seward streets loaded in our website
Seward Area Code is 907 and Time Zone is Alaska (GMT -09:00).
Seward Zip Code - Alaska
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Seward City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Seward ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Seward, Alaska.
The Seward Zip Code is 99664.
If you want to send a mail to Seward City, you should use the 99664 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Seward 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 99664 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Seward 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 Alaska.