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
046543,385Machias
046193,078Calais
046942,352Baileyville
046681,741Princeton
046521,461Lubec
046301,377East Machias
046581,369Milbridge
046671,324Perry
046661,324Pembroke
046801,248Steuben
046311,211Eastport
046491,206Jonesport
046061,192Addison
046231,124Columbia Falls
04424953Danforth
04655924Machiasport
04622868Cherryfield
04643845Harrington
04671626Robbinston
04648593Jonesboro
04626517Cutler
04691515Whiting
04611513Beals
04628501Dennysville
04657322Meddybemps
04490238Topsfield
04686191Wesley
04413170Brookton
04491154Vanceboro
0449297Waite
044545Lambert Lake
showing: 31 rows

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