Manhattan is 13.4 miles long. Its widest point is 2.3 miles, and its narrowest point is 0.8 mile. Manhattan covers a total area of 23.7 square miles.
2010 census data reflects that Manhattan is the most densely populated borough in New York City, with a population of 1,601,948. The United Nations headquarters and Wall Street are located in Manhattan. Lower Manhattan has been called the financial capital of the world as it is home to Nasdaq and the New York Stock Exchange. As of 2012, Manhattan had the highest cost of living as well as the highest level of income inequality in the United States.