ZIP code · Oak Harbor · Washington · United States

ZIP code 98278 — Oak Harbor

Name: Oak Harbor (98278)
Address: Washington, 98278, US

ZIP code 98278 serves Oak Harbor, Washington.

Postal code: 98278
Single source Value from one source, not cross-checked.
City: Oak Harbor
County: Island
State: Washington
Country: United States
Coordinates: 48.3402, -122.6695 — precision precise (locality)
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Nearby localities

98277Oak Harbor · 3.7 km
98257La Conner · 13 km
98239Coupeville · 14 km
98221Anacortes · 18 km
98282Camano Island
98261Lopez Island
98238Conway · 24 km
98292Stanwood · 27 km
98222Blakely Island
98253Greenbank · 28 km

About this page

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames. Data generated on 2026-08-21. Methodology · Report an error on this page