Bronx, New York the northernmost of the five boroughs (counties) of New York City in the state of New York, lies south of Westchester County. Many bridges and tunnels link the Bronx to the island and borough of Manhattan to the west over and under the narrow Harlem River, as well as three longer bridges south over the East River to the borough of Queens. Of the five boroughs, the Bronx is the only one on the U.S. mainland and, with a land area of 42 square miles (109 km2) and a population of 1,455,444 in 2015, has the fourth largest land area, the fourth highest population, and the third-highest population density.
with surrounding areas in New Rochelle, Yonkers, NYC, Throgs Neck, or Larchmont is home to Gracie Jiu-Jitsu NY, a Martial Arts facility focusing on
programs in Kids Martial Arts and Gracie Jiu Jitsu.