New Jersey Jersey since 2010, representing an increase of 5.9% from the 2010 United States Census, when the city's population was enumerated at 247,597. In 2010, Newark experienced its first population increase since the 1950s. New Jersey is bordered on the north and northeast by New York (parts of which are across the Hudson River, Upper New York Bay, the Kill Van Kull, Newark Bay, and the Arthur Kill); on the east by the Atlantic Ocean; on the southwest by Delaware across Delaware Bay; and on the west by Pennsylvania across the Delaware River. New Jersey is often broadly divided into three
New York–Pennsylvania border New York–Pennsylvania border The New York–Pennsylvania border is the state line between the U.S. states of New York and Pennsylvania. It has three sections: The survey of the 42nd parallel north was carried out in 1785–86 and accepted by the two states in 1787. The surveying technique that was used at the time was not especially accurate, and as such, this boundary wanders a bit on both sides of the true parallel. The 82nd mile stone was used as the starting point of the Preemption Line defined in the Treaty of Hartford in 1786 to separate Massachusetts and New York