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 from the 45,768 counted in the 2000 Census, which had in turn increased by 7,643 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.