New York County is the most densely populated county in the United States, more dense than any individual American city. On business days, the influx of commuters increases the number of people to more than 3.9 million.

Manhattan has been described as the economic and cultural center of the United States and serves as home to the United Nations Headquarters.

Wall Street, in Lower Manhattan, has been called the financial capital of the world, and is home to the New York Stock Exchange and NASDAQ.

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Main Industries: New York County has some of the nation's most valuable real estate. Additionally, it is the economic engine of New York City, with its 2.3 million workers in 2007 drawn from the entire New York metropolitan area accounting for almost two-thirds of all jobs in New York City. Manhattan's most important economic sector lies in its role as the headquarters for the U.S. financial industry. New York County is home to the most corporate headquarters of any city in the nation. with approximately 520 million square feet of office space in 2013, making it the largest office market in the United States.

Education: Manhattan has various colleges and universities including Columbia University (and its affiliate Barnard College), Fordham College at Lincoln Center, Cooper Union, Marymount Manhattan College, New York Institute of Technology, New York University (NYU), The Juilliard School, Pace University, Berkeley College, The New School, and Yeshiva University.

Other schools include Bank Street College of Education, Boricua College, Jewish Theological Seminary of America, Manhattan School of Music, Metropolitan College of New York, School of Visual Arts, Touro College and Union Theological Seminary. Several other private institutions maintain a Manhattan presence, among them St. John's University, The College of New Rochelle and Pratt Institute.

The City University of New York (CUNY), is the largest urban university system in the United States, serving more than 226,000 degree students. CUNY includes: Baruch College, City College of New York, Hunter College, John Jay College of Criminal Justice, and the CUNY Graduate Center. The only CUNY community college is the Borough of Manhattan Community College. The State University of New York is represented by the Fashion Institute of Technology, State University of New York State College of Optometry and Stony Brook University – Manhattan.

Land: Manhattan is loosely divided into Downtown (Lower Manhattan), Midtown (Midtown Manhattan), and Uptown (Upper Manhattan), with Fifth Avenue dividing Manhattan's east and west sides. Manhattan Island is bounded by the Hudson River to the west and the East River to the east. To the north, the Harlem River divides Manhattan Island from The Bronx and the mainland United States.

Several small islands are also included: Randall's Island, Wards Island, and Roosevelt Island in the East River, and Governors Island and Liberty Island to the south in New York Harbor.

Borough President (Manhattan) - Gale Brewer

New York City Mayor - Bill de Blasio