Northwest (NW or N.W.) is the northwestern quadrant of Washington, D.C., the capital of the United States, and is located north of the National Mall and west of North Capitol Street. It is the largest of the four quadrants of the city (NW, NE, SW and SE), and it includes the central business district, the Federal Triangle, and the museums along the northern side of the National Mall, as well as many of the District's historic neighborhoods. Politically, Northwest is made up of parts of Wards 1, 2, 3, 4, 5, and 6, with Wards 1 and 3 being the only wards located entirely within the quadrant. The Northwest is the wealthiest quadrant of the city, particularly west of 16th Street. The population of Northwest is 340,531, based on the data collected in the latest U.S. Census Bureau release. The population is 48.33% male, and 51.67% female. There are 146,397 households, with 57,445 being family households, and 88,951 being non-family households. From Wikipedia
