Mott Haven is a primarily residential neighborhood in the southwestern section of the Bronx borough in New York City. Zip codes include 10451, 10454, and 10455. The neighborhood is part of Bronx Community Board 1. Its boundaries, starting from the north and moving clockwise, are East 149th Street to the north, the Bruckner Expressway to the east, the Bronx Kill waterway to the south, and the Harlem River to the west. East 138th Street is the primary east-west thoroughfare through Mott Haven.