Washington, DC

ZIP code 20289 is a federally assigned postal code in central Washington, D.C., rather than a typical residential district. The area is associated with the federal government core, with major nearby landmarks including the White House, the National Mall, the U.S. Capitol, the Washington Monument, and Smithsonian museums. Because unique federal ZIP codes may serve specific institutions rather than fixed neighborhood boundaries, these landmarks are best understood as nearby, not necessarily within the ZIP itself.