Prospect Harbor is an unincorporated community in the town of Gouldsboro, Hancock County, Maine, United States. Its ZIP code is 04669.
Education It is in the Regional School Unit 24. The zoned elementary school is Peninsula School in Prospect Park. - See the embedded video which states in text: "Serving the Communities of Gouldsboro, Winter Harbor, Birch Harbor, Prospect Harbor and Corea." The district's secondary schools, Sumner Middle School and Sumner Memorial High School, are a part of the Sumner Learning Campus in Sullivan.
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