Riverdale is a residential neighborhood in the northwest portion of the New York City borough of the Bronx. Riverdale, which has a population of 47,850 as of the 2000 United States Census, contains the northernmost point in New York City. Riverdale's boundaries are disputed, but it is commonly agreed to be bordered by Yonkers to the north, Van Cortlandt Park and Broadway to the east, the Kingsbridge neighborhood to the southeast, either the Harlem River or the Spuyten Duyvil neighborhood to the south, and the Hudson River to the west. Riverdale Avenue is the primary north–south thoroughfare through Riverdale.