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
West New York, New Jersey West New York, New Jersey West New York is a town in Hudson County, New Jersey, United States, situated upon the New Jersey Palisades. As of the 2010 United States Census, the town's population was 49,708, reflecting an increase of 3,940 (+8.6%) from the 45,768 counted in the 2000 Census, which had in turn increased by 7,643 (+20.0%) from the 38,125 counted in the 1990 Census. West New York is one of the most densely populated municipalities in the United States as well as worldwide. West New York was incorporated as a town by an act of the New Jersey