Kensington is a neighborhood in the central portion of the New York City borough of Brooklyn, located south of Prospect Park and Green-Wood Cemetery. It is bordered by Coney Island Avenue to the east; Fort Hamilton Parkway and Caton Avenue to the north; McDonald Avenue, Dahill Road or 36th Street to the west; and Ditmas Avenue or Foster Avenue to the south. Kensington and Parkville are bordered by the Prospect Park South and Ditmas Park subsections of Flatbush to the east; Windsor Terrace to the north; Borough Park to the west; and Midwood to the south.

Brooklyn is a borough of New York City. Located on the westernmost end of Long Island, it is coextensive with Kings County in the U.S. state of New York. With 2,736,074 residents as of the 2020 United States census, Kings County is the most populous of the five boroughs of New York City and the most populous county in the State of New York. The population density of Brooklyn was 37,339.9 inhabitants per square mile (14,417.0/km2) in 2022, making it the second-most-densely-populated county in the United States, behind Manhattan, and it had the ninth-highest population of any county nationwide. Were Brooklyn still an independent city, it would be the fourth most populous in the U.S. after the rest of New York City, Los Angeles, and Chicago.