New York City worldwide. New York City is situated in the Northeastern United States, in southeastern New York State, approximately halfway between Washington, D.C. and Boston. The location at the mouth of the Hudson River, which feeds into a naturally sheltered harbor and then into the Atlantic Ocean, has helped the city grow in significance as a trading port. Most of New York City is built on the three islands of Long Island, Manhattan, and Staten Island. The Hudson River flows through the Hudson Valley into New York Bay. Between New York City and Troy, New York, the river is an estuary. The
Port of New York and New Jersey of Liberty National Monument, the port district comprises all or part of seventeen counties in the region. The ten that are completely within the district are Hudson, Bergen, Essex, Union (in New Jersey), Westchester (in New York), and the five boroughs of New York City, which are coterminous with the counties of New York, Bronx, Kings, Queens, and Richmond. Abutting sections of Passaic, Middlesex, Monmouth, Morris, and Somerset in New Jersey, and Nassau and Rockland in New York are also within the district. New York Harbor is one of the world's largest natural harbors. The Atlantic Ocean is to the