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.
Courtesy of the Library of Congress
Boston was one of the most important cities in the postal system during the colonial period. Most of the mail going to and from England was routed through Boston, Philadelphia or Charleston, Virginia.