Hudson County, New Jersey Hudson County, New Jersey Hudson County, a county in the U.S. state of New Jersey, lies west of the lower Hudson River, which was named for Henry Hudson, the sea captain who explored the area in 1609. Part of New Jersey's Gateway Region in the New York metropolitan area, Jersey City is its largest city and county seat. As of the 2017 Census estimate, Hudson County was the fastest-growing county in New Jersey compared to 2010; the county's population was 691,643, making it the state's 4th-most populous county, an increase of 9.0% from the 2010 United States Census, when its
New City, New York CDP/hamlet in the state of New York. New City is the county seat, and most populous community of Rockland County and the location of the Clarkstown Police Department, Sheriff's office and corrections facility. The downtown area is one of the main business districts in the county. The ZIP code of New City is 10956. New City is located at (41.145495, −73.994901). New City is accessible from major Rockland arteries providing rapid access to Bergen County, New Jersey, Westchester County, New York, Manhattan, and the Bronx in New York City. Before the Revolutionary War, the land that would later become known