CAMBRIDGE POST OFFICE 02139

Cambridge Post Office Hours


Retail Hours

Contact Numbers:

Phone: 617-575-8700
Monday-Friday 7:30am - 7:00pm
Saturday 7:30am - 2:00pm
Sunday Closed

Bulk Mail Acceptance Hours

Monday-Friday 8:00am - 4:30pm
Saturday-Sunday Closed

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

Lobby Hours

Monday-Friday 6:00am - 7:00pm
Saturday 6:00am - 5:00pm
Sunday Closed

Monday-Friday 6:00am - 7:00pm
Saturday 6:00am - 5:00pm
Sunday Closed

Last Collection Times

Monday-Friday 7:00pm
Saturday 5:00pm
Sunday Closed

USPS Shipping Rate Calculator

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Frances E Griffith (Postmaster) frances.e.griffith@usps.gov
770 Massachusetts Ave
Cambridge, MA 02139

The Cambridge Post Office is located in the state of Massachusetts within Middlesex County. This location serves 36,349 Cambridge residents with a median income of $70,508. It's estimated that approximately 58,017 packages pass through this post office each year.

Cambridge Post Office Location


Cambridge Massachusetts Local Links