New York City is the most populous city in the United States. Located on one of the world's largest natural harbors, New York City consists of five boroughs Bronx, Manhattan, Brooklyn, Queens and Staten Island were consolidated into a single city in 1898. New York is the most densely populated major city in the United States. The New York City Metropolitan Area's population is the United States  largest with 18,9 million people distributed over 6.720 square miles.