Brooklyn is a borough of New York City in the U.S. state of New York. It is New York City's most populous borough, with 2,736,074 residents in 2020. If each borough were ranked as a city, Brooklyn would rank as the third-most populous city in the U.S., after Los Angeles and Chicago.
Named after the Dutch village of Breukelen, it shares a land border with the borough of Queens, on the western end of Long Island. Brooklyn has several bridge and tunnel connections to the borough of Manhattan across the East River, and the Verrazzano-Narrows Bridge connects it with Staten Island.
Brooklyn was an independent incorporated city until January 1, 1898, when, after a long political campaign and public relations battle during the 1890s, according to the new Municipal Charter of "Greater New York," Brooklyn was consolidated with other cities, towns, and counties, to form the modern City of New York, surrounding the Upper New York Bay with five constituent boroughs.