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Oak Harbor, WA ZIP codes

Oak Harbor, Washington has 2 ZIP codes. They are in Island County.

Population in these ZIPs
42,849
Avg. median income
$83,300population-weighted
Typical home value
$529,200population-weighted
Metro area
Oak Harbor, WA
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ZIP codes within 10 miles

Oak Harbor, WA ZIP codes list

Oak Harbor, WA ZIP codes
ZIP codeCountyPopulationMedian incomeTypical home value
98277Island County40,917$83,253$529,200
98278Island County1,932——

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

Cities near Oak Harbor

Frequently asked questions

What is the ZIP code for Oak Harbor, WA?

Oak Harbor, WA has 2 ZIP codes: 98277 and 98278.

What county is Oak Harbor, Washington in?

Oak Harbor ZIP codes are in Island County.