District of Columbia, DC

ZIP code 20252 is a special-purpose postal code in Washington, D.C., rather than a conventional residential district. The area is associated with federal offices and civic institutions in the capital’s central core. Prominent nearby landmarks include the U.S. Capitol, the National Mall, Smithsonian museums, and the Washington Monument; ZIP boundaries do not necessarily match landmark boundaries, so these sites may be nearby rather than within the postal area.