Parcel Return Service, DC

ZIP code 56964 is a special-purpose postal code associated with Washington, D.C., rather than a conventional neighborhood with a clearly defined public-facing boundary. Consequently, major landmarks cannot reliably be described as lying within the ZIP code itself. Prominent landmarks in the wider city include the U.S. Capitol, the White House, the Washington Monument, and the Smithsonian museums, but these should not be attributed specifically to ZIP code 56964.