Settlements similar to or like New York City

Most densely populated of the five boroughs of New York City, and coextensive with the County of New York, one of the original counties of the U.S. state of New York. Manhattan serves as the city's economic and administrative center, cultural identifier, and historical birthplace. Wikipedia

Largest metropolitan area in the United States by urban landmass, at 3450.2 mi2. The metropolitan area includes New York City (the most populous city in the United States), Long Island, and the Mid and Lower Hudson Valley in New York State; the five largest cities in New Jersey: Newark, Jersey City, Paterson, Elizabeth, and Edison, and their vicinities; and six of the seven largest cities in Connecticut: Bridgeport, New Haven, Stamford, Waterbury, Norwalk, and Danbury, and their vicinities. Wikipedia

Borough of New York City, co-extensive with Kings County, in the U.S. state of New York. Most-populous county in the state, the second-most densely populated county in the United States, and New York City's most populous borough, with an estimated 2,648,403 residents in 2020. Wikipedia

Borough of New York City, coextensive with Bronx County, in the U.S. state of New York, the third-most-densely populated county in the United States. South of Westchester County; northeast and east of Manhattan, across the Harlem River; and north of Queens, across the East River. Wikipedia

Borough of New York City, coextensive with Queens County, in the U.S. state of New York. Largest borough of New York City in area and is adjacent to the borough of Brooklyn at the western end of Long Island, with Nassau County to the east. Wikipedia

Largest city in the U.S. state of Pennsylvania and the sixth-most populous U.S. city, with a 2019 estimated population of 1,584,064. Since 1854, the city has had the same geographic boundaries as Philadelphia County, the most-populous county in Pennsylvania and the urban core of the eighth-largest U.S. metropolitan statistical area, with over 6 million residents. Wikipedia