Manhattan, New York City Skyline
Manhattan is a borough of New York, New York, USA, coterminous with New York County. With a 2000 population of 1,537,195 packed into a land area of 22.96 square miles (59.47 km²), it is the most densely populated county in the United States, with almost 67,000 residents per square mile (almost 26,000/km²). Manhattan Island is the largest section of the borough, which also includes several smaller islands and a small section of the mainland adjacent to the Bronx.
A commercial, financial, and cultural center of the city, Manhattan has many famous landmarks, tourist attractions, museums, and universities. It is also home to the headquarters of the United Nations and the seat of city government. Manhattan has the largest central business district in the United States, is the site of both the New York Stock Exchange and NASDAQ, and is the home to the largest number of corporate headquarters in the nation.