Inman Square Post Office

1311 Cambridge St, Cambridge, MA 02139

Contact Numbers

Phone: 617-864-4344
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours







Lobby Hours
PO Box Access Available

Monday 9:30am - 5:00pm
Tuesday 9:30am - 5:00pm
Wednesday 9:30am - 5:00pm
Thursday 9:30am - 5:00pm
Friday 9:30am - 5:00pm
Saturday Closed
Sunday Closed

Last Collection Times

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

*This facility does not process US Passports applications or renewals. Check nearby locations below.

  • Burial Flags
  • Business Line
  • Duck Stamps
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Philatelic Services
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online

Visit our Links Page for Holiday Schedule, Change of Address, Hold Mail/Stop Delivery, PO Box rentals and fees, and Available Jobs.

*Please call to verify information. Is anything incorrect? Let us know here

Nearby Post Offices:

Union Square
18 Bow St
0.3 mile away

Cambridge
770 Massachusetts Ave
0.4 mile away

M I T
84 Massachusetts Ave
0.6 mile away

Porter Square Carrier Annex
30 Cobble Hill Rd
0.6 mile away

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