Post Offices

Post Offices in & near East Central, Washington, D.C.. Operating hours, locations, phone/fax number, services information.

National Capitol Post Office

National Capitol Post Office in Washington, District of Columbia on Massachusetts Ave NE. Operating hours, phone number, services information, and other locations.

Address: 2 Massachusetts Ave NE, Washington, DC 20002
Phone: 202-636-1259
Fax: 202-523-2928
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

Retail Hours

Monday 9:00am - 7:00pm
Tuesday 9:00am - 7:00pm
Wednesday 9:00am - 7:00pm
Thursday 9:00am - 7:00pm
Friday 9:00am - 7:00pm
Saturday 9:00am - 5:00pm
Sunday 9:00am - 5:00pm

Lobby Hours

Monday 6:30pm
Tuesday 6:30pm
Wednesday 6:30pm
Thursday 6:30pm
Friday 6:30pm
Saturday 6:30pm
Sunday 6:30pm

Last Collection Times

Monday 10:00am - 3:00pm
Tuesday 10:00am - 3:00pm
Wednesday 10:00am - 3:00pm
Thursday 10:00am - 3:00pm
Friday 10:00am - 3:00pm
Saturday Closed
Sunday Closed