Cambridge Post Office

Find Cambridge Massachusetts post offices and USPS mailing boxes. Post offices provide information on bulk mail services, domestic mail delivery, international shipping, change of address, mail forwarding, PO boxes, and passport services.


Cambridge Post Office 770 Massachusetts Avenue Cambridge MA 02139 617-575-8700


East Cambridge Post Office 303 Cambridge Street Cambridge MA 02141 617-876-8558

Harvard Square Post Office 125 Mount Auburn Street Cambridge MA 02138 617-876-3883

Inman Square Post Office 1311 Cambridge Street Cambridge MA 02139 617-864-4344

Kendall Square Post Office 250 Main Street Cambridge MA 02142 617-876-5155

M I T Post Office 84 Massachusetts Avenue Cambridge MA 02139 617-494-5511

Porter Square Financial Unit Post Office 1953 Massachusetts Avenue Cambridge MA 02140 617-876-5599

Soldiers Field Post Office 117 Western Avenue Boston MA 02163 0.8 miles from Cambridge 617-354-0131

Somerville Post Office 237 Washington Street Somerville MA 02143 1.3 miles from Cambridge 617-666-2332

West Somerville Post Office 58 Day Street Somerville MA 02144 1.4 miles from Cambridge 617-666-2255

Allston Post Office 47 Harvard Avenue Boston MA 02134 1.7 miles from Cambridge 617-789-3769

Winter Hill Post Office 320 Broadway Somerville MA 02145 1.7 miles from Cambridge 617-666-5225

East Watertown Post Office 589 Mount Auburn Street Watertown Town MA 02472 2.1 miles from Cambridge 617-924-1407

Kenmore Post Office 11 Deerfield Street Boston MA 02215 2.1 miles from Cambridge 617-437-1113

Tufts University Post Office 470 Boston Avenue Medford MA 02155 2.2 miles from Cambridge 617-625-5755

Brookline Post Office 1295 Beacon Street Brookline MA 02446 2.3 miles from Cambridge 617-738-1649

East Arlington Post Office 240 Massachusetts Avenue Arlington MA 02474 2.5 miles from Cambridge 781-643-4482

Charles Street Post Office 136 Charles Street Boston MA 02114 2.7 miles from Cambridge 617-723-7434

Brighton Post Office 424 Washington Street Boston MA 02135 2.7 miles from Cambridge 617-254-5026

Astor Post Office 207 Massachusetts Avenue Boston MA 02115 2.7 miles from Cambridge 617-247-2429

What Change of Address options are available?

Customers can request a temporary or permanent Change of Address either online or in person at the Post Office using PS Form 3575. The online application for Change of Address has a $1.00 identity validation fee.

Is it possible to insure mail and items sent via the USPS?

Yes. Standard mail can be insured for up to $5,000 for an additional fee. Registered mail items can be insured for up to $50,000.

What is the USPS Office of Inspector General?

The Office of Inspector General (OIG) is a division within the USPS responsible for ensuring the integrity and accountability of the postal service. It conducts investigations to safeguard the postal system and performs audits and reviews.