Post Offices
Post Offices in & near Old Cambridge, Massachusetts. Operating hours, locations, phone/fax number, services information.
Harvard Squar Post Office
Harvard Square Post Office in Cambridge, Massachusetts on Mount Auburn St Ste 1. Operating hours, phone number, services information, and other locations.
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
Retail Hours
Monday 7:30am - 6:00pmTuesday 7:30am - 6:00pm
Wednesday 7:30am - 6:00pm
Thursday 7:30am - 6:00pm
Friday 7:30am - 6:00pm
Saturday 7:30am - 3:00pm
Sunday Closed
Lobby Hours
Monday 6:00pmTuesday 6:00pm
Wednesday 6:00pm
Thursday 6:00pm
Friday 6:00pm
Saturday 3:00pm
Sunday Closed
Last Collection Times
Monday 10:00am - 4:00pmTuesday 10:00am - 4:00pm
Wednesday 10:00am - 4:00pm
Thursday 10:00am - 4:00pm
Friday 10:00am - 4:00pm
Saturday 7:30am - 3:00pm
Sunday Closed