Situated on one of the world's largest natural harbors, with water covering 36.4% of its surface area, New York City is composed of 5 boroughs, each of which is coextensive with a respective county of the state of New York. The five boroughs—Brooklyn (Kings County), Queens (Queens County), Manhattan (New York County), the Bronx (Bronx County), and Staten Island (Richmond County)—were created when local governments were consolidated into a single municipal entity in 1898.

Source: Wikipedia