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The Commemorative Quarter for Washington





Welcome to Oak Harbor ...

The coastal city of Oak Harbor is located on Whidbey Island.

Oak Harbor is located in Island County<1>.

While we don't have a date for the founding of Oak Harbor, you might consider that their post office opened  in 1861.

A typical abbreviation for Oak Harbor: Oak Hbr. (or less commonly used: Oak Harb. or Oak Hrbr.)

From the  Census Estimates for 2019, Oak Harbor has a population of 23,598 people<2> (see below for details).

The community of Oak Harbor is 170 feet [52 m] above sea level.<3>.

Time Zone: Oak Harbor lies in the Pacific Time Zone (PST/PDT) and observes daylight saving time

Area Codes for Oak Harbor: 360 & 564<4>

The ZIP code for Oak Harbor: 98277<5>

Population Details ...

Taken from the 2019 Census Estimates, Oak Harbor had an population of 23,598 people. This is an increase of 6.9% since the 2010 Census (or an increase of 19.21% since the 2000 Census).

At the time of the 2010 Census, Oak Harbor had a population of 22,075 people (or 28.05% of the total population of Island County). This makes Oak Harbor the county's most populous community.

The population of Oak Harbor represents 0.33% of the population of Washington (which has 6,724,540 people), making it the state's 44th most populous community.

With a 2010 count of 22,075 people, the population of Oak Harbor increased 11.52% from the 2000 Census (with a count of 19,795 people).

More information can be found on the Census Page for Oak Harbor.

Communities Also Named Oak Harbor ...

Using our Gazetteer, we found that there are 5 communities that are also named Oak Harbor - they are located in Florida, Georgia, Louisiana, Ohio and Texas.

For more information, see our Tidbits & Trivia Page for Oak Harbor.

Websites for Oak Harbor ...

Official Website: www.oakharbor.org/

Communities near Oak Harbor ...

We have created a list of 10 communities that are near Oak Harbor.

To Help With Your Genealogy Research ...

We have a couple of sections for those tracing their genealogy.

We created a list of cemeteries that are in the area around Oak Harbor. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for Oak Harbor.

Using the information from an 1895 Atlas, we've created a list of communities that were in the area of Oak Harbor. Our list includes information such as whether the 1895 community had a post office or railroad service. See our List of 1890's Communities around Oak Harbor.

We also have a detailed list of newspapers that have been published in the area around Oak Harbor. Our list includes 8 papers. See our Newspapers Page for Oak Harbor.

TripAdvisor Tourism Pages for Oak Harbor ...

Looking for more information about Oak Harbor? A wonderful source is the TripAdvisor website. We always start with the TripAdvisor Tourism page, where you can read an overview with links that will help you find lodging, restaurants and attractions.

In addition to the Tourism page for Oak Harbor, there are neighboring communities that also have Tourism pages. More information about those communities can be found on our TripAdvisor Page for Oak Harbor.

Adding Oak Harbor to Our Gazetteer ...

We originally found mention of Oak Harbor in both the FIPS-55 and the GNIS. For more information, see the FIPS and GNIS Codes sections on our Miscellaneous Page.

From our notes, the earliest published mention we've found for Oak Harbor was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<8>

X2X - From that list, the Oak Harbor post office opened in 1861.

We also found Oak Harbor in the book titled Business Atlas and Shippers' Guide (1895).

For more details, see References and Mentions for Oak Harbor.

The official website for Oak Harbor: www.oakharbor.org/

The official website for Island County: www.islandcounty.net/

The official website for State of Washington: https://wa.gov/

Footnotes ...

<1>If you're interested in how the shape of Washington's counties, including Island, have changed over time, we recommend the Atlas of Historical County Boundaries.
<2>Population counts have been provided by the U.S. Census Bureau. For more detail, please visit our Census Page for Oak Harbor.
<3>The elevation is an estimate for the area around Oak Harbor - it will be higher in some places and lower in others.
<4>When there's a risk of an area code running out of phone numbers, an 'Overlay Area Code' is created that has the same geographic boundaries as the existing area code. In this case, the 360 code has been Overlayed with the 564 area code. New phone numbers in the Oak Harbor area will be assigned with one of these codes: 360 or 564. As a result, placing a call in the Oak Harbor area will require 10-digit dialing (where you enter both the area code and then the phone number).
<5>ZIP Codes have been created by the United States Postal Service (USPS) as a way of grouping addresses to make delivery more efficient. The boundaries of the ZIP Code can be changed, re-assigned, eliminated or overlapped with other ZIP Codes. So keep in mind that any given ZIP Code is only 'loosely' associated with a city (such as Oak Harbor). When looking for a ZIP Code, whether Oak Harbor or elsewhere, it's always best to check the website of the United States Postal Service (USPS).
<6>While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.
<7>The location has been supplied by the Geographic Names Information System - which is maintained by the U.S. Geological Survey (USGS). While these values should be definitive, we found that accuracy can vary and you should double-check the location if accuracy is required.
<8>A copy of their list with background information can be found at:

      https://cblevins.github.io/us-post-offices/data-biography/




 

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This page was last modified/updated: 29 Apr 2025