The State of New Jersey is located in the northeastern United States, bordered by New York to the north and Pennsylvania to the west. It is known for its diverse geography, which includes beaches along the Jersey Shore, forests, and urban areas. The state is the fourth smallest in the U.S. but is one of the most densely populated. New Jersey was one of the original thirteen colonies and became the third state to ratify the U.S. Constitution in 1787. The state has a rich history and is home to several important historical sites, including Ellis Island and the Battle of Trenton site.