Harborside is an unincorporated village in the town of Brooksville, Hancock County, Maine, United States. The community is located on the coast of Penobscot Bay 24 miles (39 km) southwest of Ellsworth. Harborside had a post office from April 7, 1898, until December 20, 2003; it still has its own ZIP code, 04642.
|Coordinates: 44°20′56″N 68°48′53″W|
|Elevation||89 ft (27 m)|
|Time zone||UTC-5 (Eastern (EST))|
|• Summer (DST)||UTC-4 (EDT)|
|GNIS feature ID||567596|