There are 31 zip codes in Washington County, Maine. The most populated is 4654, located in Machias. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
46543,385Machias
46193,078Calais
46942,352Baileyville
46681,741Princeton
46521,461Lubec
46301,377East Machias
46581,369Milbridge
46671,324Perry
46661,324Pembroke
46801,248Steuben
46311,211Eastport
46491,206Jonesport
46061,192Addison
46231,124Columbia Falls
4424953Danforth
4655924Machiasport
4622868Cherryfield
4643845Harrington
4671626Robbinston
4648593Jonesboro
4626517Cutler
4691515Whiting
4611513Beals
4628501Dennysville
4657322Meddybemps
4490238Topsfield
4686191Wesley
4413170Brookton
4491154Vanceboro
449297Waite
44545Lambert Lake
showing: 31 rows

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