Unalaska AK ZIP Code
Unalaska city is located in Alaska State, Aleutians West County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Unalaska AK zip code by its streets and block numbers if we have some of the Unalaska streets loaded in our website
Unalaska Area Code is 907 and Time Zone is Alaska (GMT -09:00).
Unalaska Zip Code - Alaska
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Unalaska City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Unalaska ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Unalaska, Alaska.
The Unalaska Zip Code is 99685.
If you want to send a mail to Unalaska City, you should use the 99685 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Unalaska 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 99685 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Unalaska 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.