what county is belfast maine in
Belfast is a city in Waldo County, Maine, in the United States. As of the 2010 census, the city population was 6,668. Located at the mouth of the Passagassawakeag River estuary on Penobscot Bay, Belfast is the county seat of Waldo County. The seaport has a wealth of antique architecture in several historic districts, and remains popular with tourists.