Belgrade is a town in Kennebec County, Maine, United States. The population was 3,189 at the 2010 census. Belgrade's population, however, approximately doubles during the summer months as part-year residents return to seasonal camps located on the shores of Great Pond, Long Pond and Messalonskee Lake. Belgrade includes the villages of North Belgrade, Belgrade Depot and Belgrade Lakes. Belgrade is included in the Augusta, Maine micropolitan New England City and Town Area.