Post Offices

Post Offices in & near Cambridge, Massachusetts. Operating hours, locations, phone/fax number, services information.

Cambridg Post Office

Post Office in Cambridge, Massachusetts on Massachusetts Ave. Operating hours, phone number, services information, and other locations.

Address: 770 Massachusetts Ave, Cambridge, MA 02139
Phone: 617-575-8700
Fax: 617-491-8318
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

Retail Hours

Monday 7:30am - 7:00pm
Tuesday 7:30am - 7:00pm
Wednesday 7:30am - 7:00pm
Thursday 7:30am - 7:00pm
Friday 7:30am - 7:00pm
Saturday 7:30am - 2:00pm
Sunday Closed

Lobby Hours

Monday 7:00pm
Tuesday 7:00pm
Wednesday 7:00pm
Thursday 7:00pm
Friday 7:00pm
Saturday 5:00pm
Sunday Closed

Last Collection Times

Monday 10:30am - 3:30pm
Tuesday 10:30am - 3:30pm
Wednesday 10:30am - 3:30pm
Thursday 10:30am - 3:30pm
Friday 10:30am - 3:30pm
Saturday 7:00am - 3:00pm
Sunday Closed

Harvard Squar Post Office

Address: 125 Mount Auburn St Ste 1, Cambridge, MA 02138
Phone: 617-876-3883
Fax: 617-876-8508
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

Inman Squar Post Office

Address: 1311 Cambridge St, Cambridge, MA 02139
Phone: 617-864-4344
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

Union Squar Post Office

Address: 18 Bow St, Somerville, MA 02143
Phone: 617-776-0175
Fax: 617-625-6622
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

Soldiers Field Post Office

Address: 117 Western Ave Ste 1, Boston, MA 02163
Phone: 617-547-4250
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

M Post Office

Address: 84 Massachusetts Ave, Cambridge, MA 02139
Phone: 617-494-5511
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457