Island County, Washington ZIP codes
8 ZIP codes are in Island County. It's part of the Oak Harbor, WA micro area.
- ZIP codes
- 8
- Population in these ZIPs
- 86,836
- Avg. median income
- $91,100population-weighted
- Cities & towns
- 7
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ZIP codes in Island County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 98236 | Clinton | 7,199 | $94,362 | $730,100 |
| 98239 | Coupeville | 7,656 | $92,125 | $634,500 |
| 98249 | Freeland | 4,198 | $99,519 | $734,700 |
| 98253 | Greenbank | 2,311 | $71,131 | $758,200 |
| 98260 | Langley | 5,320 | $101,987 | $774,100 |
| 98277 | Oak Harbor | 40,917 | $83,253 | $529,200 |
| 98278 | Oak Harbor | 1,932 | — | — |
| 98282 | Camano Island | 17,303 | $105,231 | $717,600 |
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 and towns in Island County
Nearby counties
Frequently asked questions
How many ZIP codes are in Island County, Washington?
8 ZIP codes are mainly in Island County.
What cities are in Island County?
ZIP codes in Island County use the city names Camano Island, Clinton, Coupeville, Freeland, Greenbank, Langley and Oak Harbor.
What metro area is Island County in?
Island County is part of the Oak Harbor, WA micropolitan statistical area.