Willow AK ZIP Code
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Willow city is located in Alaska State, Matanuska Susitna County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Willow AK zip code by its streets and block numbers if we have some of the Willow streets loaded in our website
Willow Area Code is 907 and Time Zone is Alaska (GMT -09:00).
Willow Zip Code - Alaska
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Willow City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Willow ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Willow, Alaska.
The Willow Zip Code is 99688.
If you want to send a mail to Willow City, you should use the 99688 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Willow 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 99688 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Willow 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.