There are 13 zip codes in Skagit County, Washington. The most populated is 98273, located in Mount Vernon. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
9827330,430Mount Vernon
9828427,688Sedro Woolley
9822122,969Anacortes
9827418,360Mount Vernon
9823316,952Burlington
982374,979Concrete
982574,484La Conner
982323,939Bow
98235570Clearlake
98255312Hamilton
98263178Lyman
98267160Marblemount
9823845Conway

Zip Codes in Skagit County, Washington by Population (2024)