Oak Harbor ZIP Codes — Island County, WA

There are 2 unique ZIP codes in Oak Harbor, Washington. Area code: 360/564.

ZIP codes

61.47

sq mi land

15.30

sq mi water

360/564

area code

Oak Harbor, WA ZIP code map

About Oak Harbor, WA

Oak Harbor, Washington, is a charming city located on Whidbey Island, known for its scenic beauty and vibrant community. Nestled in Island County, this city has a rich maritime heritage and is an important part of the region's history. With a population that enjoys a small-town atmosphere, Oak Harbor offers a welcoming environment for both residents and visitors alike.

Location & geography

Oak Harbor is situated on the eastern shore of Whidbey Island, providing stunning views of Puget Sound and the Cascade Mountains. It is approximately 8 miles south of Anacortes, 30 miles west of Everett, and has easy access to the neighboring cities of Coupeville and Langley, which are within a short drive. The city covers an area of 65.70 square miles of land and includes an additional 16.72 square miles of water, making it a picturesque waterfront destination.

Community & economy

Oak Harbor boasts a diverse and close-knit community, where residents are actively involved in local events and organizations. The economy of Oak Harbor is supported by various industries, including tourism, retail, and a significant presence of the U.S. Navy through the Naval Air Station Whidbey Island. Daily life here is characterized by outdoor activities, community festivals, and a strong connection to nature, thanks to the city's beautiful parks and waterfront.

Transportation

Oak Harbor is served by several key highways, including State Route 20, which connects the city to other parts of Whidbey Island and the mainland. The closest major airport is Seattle-Tacoma International Airport, located about 72 miles to the south, offering regional and international flights. Public transportation is available through Island Transit, providing easy access for residents and visitors to explore the area.

History

Founded in the mid-19th century, Oak Harbor quickly established itself as a significant port and fishing hub. The city's growth was further spurred by the establishment of the U.S. Navy base in the early 20th century, which remains a key part of the local economy today. Notable events in the city's history include the annual Oak Harbor Music Festival, highlighting its vibrant cultural scene.

Did you know?

One surprising fact about Oak Harbor is that it is home to the only wine grape production on Whidbey Island, offering a unique twist to the area's agricultural offerings. Additionally, the city is known for its annual Seafair celebration, which honors its maritime heritage and features parades, live music, and community festivities.

ZIP codes for Oak Harbor, WA (2)

ZIP code	City	County	Map
98277	Oak Harbor	Island	View map
98278	Oak Harbor	Island	View map

Demographics & statistics

40,181

Population

35.1

Median age

$72,441

Median household income

$36,517

Per capita income

$415,500

Median home value

$1,542

Median monthly rent

58.4%

Home ownership

7.4%

Poverty rate

6.5%

Unemployment

10,989

Housing units

26.5%

Bachelor's or higher

Age distribution

Male Female

1,502

Under 5

1,604

1,073

5–9

1,146

1,361

10–14

1,454

926

15–19

989

1,179

20–24

1,260

3,616

25–34

3,864

2,736

35–44

2,924

1,775

45–54

1,897

1,129

55–59

1,207

1,008

60–64

1,077

1,872

65–74

1,999

890

75–84

951

359

85+

383

← Male

Female →

Age summary

Group	Count	%
Under 18	9,214	22.9%
18 and over	30,967	77.1%
65 and over	6,454	16.1%
Median age	35.1 years

Race & ethnicity

White 67.9%

Two or more races 11%

Asian 6.8%

Hispanic or Latino 6.4%

Black or African American 3.4%

Other race 2.5%

American Indian / Alaska Native 1.2%

Native Hawaiian / Pacific Islander 0.7%

Group	Count	%
White	29,159	67.9%
Two or more races	4,719	11%
Asian	2,916	6.8%
Hispanic or Latino	2,740	6.4%
Black or African American	1,476	3.4%
Other race	1,078	2.5%
American Indian / Alaska Native	523	1.2%
Native Hawaiian / Pacific Islander	310	0.7%

Household income

Under $10k 3.9%

$10k–$15k 1.9%

$15k–$25k 5.3%

$25k–$35k 6.2%

$35k–$50k 11.1%

$50k–$75k 23.3%

$75k–$100k 13.7%

$100k–$150k 19.7%

$150k–$200k 7.9%

$200k+ 7.0%

Range	% of households
Under $10k	3.9%
$10k–$15k	1.9%
$15k–$25k	5.3%
$25k–$35k	6.2%
$35k–$50k	11.1%
$50k–$75k	23.3%
$75k–$100k	13.7%
$100k–$150k	19.7%
$150k–$200k	7.9%
$200k+	7.0%
Median income	$72,441

Housing

Home values

Under $50k 5.4%

$50k–$100k 2.6%

$100k–$150k 1.1%

$150k–$200k 3.3%

$200k–$300k 10.8%

$300k–$500k 47.2%

$500k–$1M 27.0%

$1M+ 2.6%

Housing overview

Metric	Value
Median home value	$415,500
Median rent / month	$1,542
Owner occupied	58.4%
Renter occupied	41.6%
Vacant	8.4%
Single-family detached	63.1%
Large apartment buildings	3.1%
Mobile homes	8.6%
Median rooms	5.4
Avg household size (owned)	2.45

Year built

Era	%
2020 or later	0.4%
2010–2019	7.2%
2000–2009	16.1%
1990–1999	20.4%
1980–1989	17.7%
1970–1979	17.5%
1960–1969	9.4%
1950–1959	8.1%
1940–1949	0.8%
1939 or earlier	2.4%

Bedrooms

Size	% of units
No bedroom (studio)	2.5%
1 bedroom	5.8%
2 bedrooms	26.5%
3 bedrooms	49.1%
4 bedrooms	14.7%
5+ bedrooms	1.5%

Vehicles per household

Vehicles	% of households
No vehicle	3.5%
1 vehicle	31.1%
2 vehicles	40.1%
3 or more	25.2%

Heating fuel

Fuel type	%
Utility gas	29.4%
Electricity	54.4%
Propane / LP gas	9.8%
Fuel oil	1.4%
Wood	3.6%
Solar	0.1%
No fuel used	0.3%

Households & families

Household type	Count	%
Married-couple family	9,143	56.2%
Cohabiting couple	889	5.5%
Male householder, no spouse	2,537	15.6%
Female householder, no spouse	3,695	22.7%
Households with children under 18	5,124	31.5%
Households with seniors (65+)	4,613	28.4%
Average household size	2.46

Marital status

Status	Male	Female
Never married	27.4%	21.5%
Married	61.6%	58.2%
Separated	1.3%	1.7%
Widowed	2.2%	7.7%
Divorced	7.4%	10.8%

Education

Less than 9th grade 2.5%

Some HS, no diploma 3.1%

HS graduate 24.5%

Some college, no degree 29.1%

Associate's degree 14.2%

Bachelor's degree 16.5%

Graduate / professional 10.0%

Metric	%
HS diploma or higher	94.4%
Bachelor's or higher	26.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	817	8.9%
Kindergarten	466	5.1%
Elementary school	3,933	42.8%
High school	1,494	16.2%
College / grad school	2,486	27.0%

Employment

Industry of employment

Education & healthcare 26.7%

Retail trade 15.2%

Professional & management 10.9%

Arts, food & hospitality 8.4%

Manufacturing 7.4%

Public administration 7.3%

Transportation & utilities 6.9%

Other services 4.5%

Construction 4.1%

Finance & real estate 3.3%

Wholesale trade 2.5%

Information 1.6%

Agriculture & mining 1.2%

Occupation

Category	%
Management, business & arts	35.1%
Service	19.9%
Sales & office	21.5%
Natural resources & construction	9.1%
Production & transportation	14.4%

Employment type

Type	%
Private sector	68.5%
Government	26.1%
Self-employed	5.1%
Unpaid family workers	0.2%

Commute

Method	%
Drive alone	79.8%
Carpool	9.4%
Public transit	0.4%
Walk	2.1%
Other means	1.9%
Avg commute (minutes)	20.8

Poverty

All people 7.4%

Under 18 years 8.7%

18 and over 7.0%

Married-couple families 2.5%

Female-led households 19.2%

Income support

Source	% of households
Social Security	27.4%
Retirement income	32.1%
Supplemental Security	3.7%
Cash public assistance	2.8%
Food stamps / SNAP	8.2%

Health indicators

Condition	%
High blood pressure	28.1%
High cholesterol	28.6%
Heart disease	5.3%
Stroke	2.5%
Asthma	10.8%
Arthritis	22.7%
Kidney disease	2.5%
Pulmonary disease	5.4%
Cancer	6.0%

Behavior / access	%
Binge drinking	18.0%
No physical activity	17.0%
Less than 7 hrs sleep	31.0%
Fair or poor health	12.1%
Poor mental health	15.7%
Poor physical health	9.5%
No health insurance	10.8%
Visited doctor (checkup)	68.8%
Visited dentist	67.5%
Cholesterol screening	85.9%
Teeth loss	10.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	6,130	23.3%

Disability	%
Any disability	16.5%
Under 18	3.7%
18–64 years	16.7%
65 and over	34.6%

Health insurance coverage

Type	%
Private insurance	76.6%
Public insurance	39.2%
Uninsured under 19	2.4%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	37,075	92.3%
Spanish	1,794	4.8%
Other Indo-European	469	1.3%
Asian & Pacific Islander	277	0.7%
Other languages	1,048	2.8%

Place of birth & citizenship

Origin	Count	%
Native born (US)	36,603	91.1%
Born in same state	35,537	88.4%
Born in different state	11,277	28.1%
Foreign born	1,066	2.7%
Naturalized citizen	3,578	8.9%
Not a US citizen	2,161	60.4%

Ancestry

Ancestry	Count	%
French	4,539	11.3%
Italian	3,542	8.8%
Arab	1,885	4.7%
Polish	1,785	4.4%
English	1,208	3%

Ancestry	Count	%
German	435	1.1%
Dutch	237	0.6%
Irish	75	0.2%
Norwegian	52	0.1%

Technology access

Metric	% of households
Computer access	40.5%
Internet access	97.2%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions

What ZIP codes does Oak Harbor, WA have?

Oak Harbor, WA has two ZIP codes: 98277 and 98278. Each ZIP code serves a distinct delivery area within the city and surrounding region.