MA · CountyBarnstable County, Massachusetts15 cities in the directoryCitiesCityPopulationRegionBarnstable49,831—Bourne20,508—Brewster10,447—Chatham6,711—Dennis14,862—Eastham5,824—Falmouth33,227—Harwich13,620—Mashpee15,482—Orleans6,485—Provincetown3,729—Sandwich20,507—Truro2,484—Wellfleet3,645—Yarmouth25,208—