northeastern states State of Maine A state in the New England region of the northeastern United States of America, bordering the Atlantic Ocean to the southeast, New Hampshire to the southwest, the Canadian provinces of Quebec to the northwest and New Brunswick to the northeast. LanguaL curation note: US FDA 1995 Code: US23 maine State of Maine A state in the New England region of the northeastern United States of America, bordering the Atlantic Ocean to the southeast, New Hampshire to the southwest, the Canadian provinces of Quebec to the northwest and New Brunswick to the northeast. LanguaL curation note: US FDA 1995 Code: US23 maine