northeastern states Commonwealth of Massachusetts A state located in the New England region of the northeastern United States. It borders Rhode Island and Connecticut to the south, New York to the west, and Vermont and New Hampshire to the north. To the east, it borders the Atlantic Ocean. LanguaL curation note: US FDA 1995 Code: US25 massachusetts Commonwealth of Massachusetts A state located in the New England region of the northeastern United States. It borders Rhode Island and Connecticut to the south, New York to the west, and Vermont and New Hampshire to the north. To the east, it borders the Atlantic Ocean. LanguaL curation note: US FDA 1995 Code: US25 massachusetts