As the city proper with the largest ethnic Chinese population outside of Asia by a wide margin, estimated at 628,763 as of 2017, and as the primary destination for new Chinese immigrants, New York City is subdivided into official municipal boroughs, which themselves are home to significant Chinese populations, with Brooklyn and Queens, adjacently located on Long Island, leading the fastest growth. After the City of New York itself, the boroughs of Queens and Brooklyn encompass the largest Chinese populations, respectively, of all municipalities in the United States.