Porter Square Carrier Annex Post Office

30 Cobble Hill Rd, Somerville, MA 02143

Contact Numbers

Phone: 617-492-8778
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Last Collection Times

Monday 5:30pm
Tuesday 5:30pm
Wednesday 5:30pm
Thursday 5:30pm
Friday 5:30pm
Saturday 5:30pm
Sunday Closed

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

  • Pickup Accountable Mail
  • Pickup Hold Mail

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:

East Cambridge
303 Cambridge St
0.4 mile away

Union Square
18 Bow St
0.5 mile away

Kendall Square
91 1st St
0.5 mile away

Winter Hill
320 Broadway
0.6 mile away

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