Open daily 10 a.m. to 5:30 p.m.
Admission is always free!
2 Massachusetts Ave., N.E.
Washington, DC 20002
The museum's main entrance is located on the corner of First Street and Massachusetts Avenue NE. Other entrances have variable hours.
The Smithsonian's National Postal Museum is located in the historic City Post Office Building, which was constructed in 1914 and served as the Washington, D.C., post office from 1914 through 1986.
The museum's Mission and Vision statements.
As part of its outreach efforts, the National Postal Museum participates in the Smithsonian Affiliations. The program's mission is to make Smithsonian collections and resources more accessible to the American public.