Island County, Washington ZIP Codes

8 ZIP Codes

Zip Code
City
Population ↓
98277Oak Harbor40,917
98282Camano Island17,303
98239Coupeville7,656
98236Clinton7,199
98260Langley5,320
98249Freeland4,198
98253Greenbank2,311
98278Oak Harbor1,932

Overview of ZIP Codes in Island County

ZCTAs are geographic areas created by the US Census Bureau to approximate the delivery areas of ZIP Codes for statistical analysis. While ZCTAs use the same five-digit codes as ZIP Codes, they represent defined geographic areas that may not exactly match the mail delivery routes of ZIP Codes.
8
ZIP Codes

The data shown reflect ZCTAs from the US Census. As of 2025, there are 8 ZCTAs in Island County, Washington (US Census).

Sources

  1. US Census: 2025 Gazetteer Files
  2. US Census: ZIP Code Tabulation Areas (ZCTAs)

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