Oak Harbor WA ZIP Code


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Oak Harbor city is located in Washington State, Island County and has a unique zip code assigned by the US Postal Service Office.


You can search for the Oak Harbor WA zip code by its streets and block numbers if we have some of the Oak Harbor streets loaded in our website

Oak Harbor Area Code is 360 and Time Zone is Pacific (GMT -08:00).



Oak Harbor Zip Code - Washington

The US ZIP Code basic format consists of five decimal numerical digits assigned to the Oak Harbor City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Oak Harbor ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Oak Harbor, Washington.

The Oak Harbor Zip Code is 98277, 98278.



If you want to send a mail to Oak Harbor City, you should use the 98277, 98278 Zip Code.

In 1983, the U.S. Postal Service introduced an expanded Oak Harbor 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 98277, 98278 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Oak Harbor 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.


Oak Harbor, Washington - MAP



What is the Oak Harbor Zip Code?

The Oak Harbor Zip Code in Washington is 98277, 98278.


ZIP Plus 4 Oak Harbor - US Streets Zip Codes

By pressing keys ctrol + F you can search Oak Harbor zip codes by its streets, highways, and know the ZIP+4 US ZIP Code


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Search Oak Harbor Zip Code

What is the zip code for Oak Harbor WA?

98277, 98278

Oak Harbor, Washington - US Zip Code



Oak Harbor ZIP Code Lookup

98277, 98278 Zip Code File:
Zip Code: 98277, 98278,
City: Oak Harbor
Oak Harbor Area Code: 360
Oak Harbor, WA - Time Zone: Pacific (GMT -08:00)
County: Island
City Alias: Ault Field, Oak Harbor, Whidbey Island Naval Air, Oak Harbor, Nas Whidbey, Naval Air Station, Whidbey Nas
State: Washington
State Abb: WA



Washington Zip+4 - Nearby Oak Harbor Cities

Cities near Oak Harbor in Washington
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View more Washington zip codes