Belfast, ME Insights: Population,
Zip Codes, Influence, and Service Areas

Belfast is a city in Waldo County, Maine, United States. As of the 2020 census, the city population was 6,938. Located at the mouth of the Passagassawakeag River estuary on Belfast Bay and Penobscot Bay. Belfast is the county seat of Waldo County. Its seaport has a wealth of antique architecture in several historic districts, and remains popular with tourists.

Zip Codes in Belfast, ME that we also serve: 04915





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