New York :  metropolitan area includes the most populous city in the United States (New York City); Long Island and the Mid- and Lower Hudson Valley in the state of New York; the five largest cities inNew Jersey (Newark - the largest city in New Jersey - Jersey City,Paterson, Elizabeth, and Edison) and their vicinities; six of the seven largest cities in Connecticut (Bridgeport - the largest city in Connecticut - New Haven, Stamford, Waterbury, Norwalk, and Danbury) and their vicinities; and five counties in northeastern Pennsylvania.

As per the 2015 United States Census Bureau estimates, the New York metropolitan area remains by a significant margin the most populous in the United States, as defined by both the Metropolitan Statistical Area (20.2 million residents and the Combined Statistical Area (23.7 million residents) it is also one of the most populousurban agglomerations in the world, and the single largest in North America The New York metropolitan area continues to be the premier gateway for legal immigration to the United States with the largest foreign-born population of any metropolitan region in the world. The MSA covers 6,720 sq mi (17,405 km²), while the CSA area is 13,318 sq mi (34,493 km²), encompassing an ethnically and geographically diverse region. The New York metropolitan area's population is larger than that of the state of New York.

As a center of many industries, including finance, international trade, new and traditional media, real estate, education, fashion and entertainment, tourism, biotechnology, and manufacturing, the New York City metropolitan region is one of the most important economic regions in the world; in 2013, the MSA produced a gross metropolitan product (GMP) of nearly US$1.39 trillion while in 2012, the CSA had a GMP of over US$1.55 trillion, both ranking first nationally by a wide margin and behind the GDP of only twelve nations and eleven nations, respectively.  In 2012, the New York metropolitan area was also home to seven of the 25 wealthiest counties in the United Statesby median household income, according to the American Community Survey  According to Forbes, in 2014, the New York City metropolitan area was home to eight of the top ten ZIP codes in the United States by median housing price, with six in Manhattan alone ^[The New York metropolitan region's higher education networkcomprises hundreds of colleges and universities, including Princeton University, Columbia University, Yale University, New York University, and Rockefeller University, which have been ranked among the top 35 in the world