U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Cambridge Postal Advisory Council

The United States Postal Service established the Cambridge Postal Advisory Council (CPAC) in 1991 to serve as a community resource in terms of offering the customers’ perspective on the nature and quality of mail delivery service and other postal services in the City of Cambridge.

CPAC’s primary goal is to monitor customer trends and field any complaints that may arise. In addition to serving as a vehicle for customer complaints, CPAC serves as a venue to assist the Post Office in the development and implementation of new programs.

More Information

Post Office Information

All telephone inquiries go to the USPS Call Center:
1-800-ASK-USPS or 1-800-275-8777

Any questions that require local intervention from the appropriate branch manager listed below can be redirected by the call center for you or you will be told that the local postal official will call you back.

You may also find the information you need on-line at www.usps.com

Cambridge Postmaster

Michael Sullivan
770 Massachusetts Avenue
Cambridge MA 02139-9998

Main Office

Central Square 

770 Massachusetts Avenue
Cambridge MA 02139-9998

Hours of Operation

Mon-Fri 7:30 a.m. - 7:00 p.m.
Sat 7:30 a.m. - 2:00 p.m.

Branch Postal Stations

Harvard Square

125 Mt Auburn Street
Cambridge MA 02238-9998

Hours of Operation

Mon - Fri 7:30 a.m. - 6:00 p.m.
*24 Hour Lobby Access to Automatic Postal Center*

Kendall Square

250 Main Street
Cambridge MA 02142-9998

Hours of Operation

Mon-Fri 8:0 0 a.m. -5:00 p.m.
24 Hour Lobby Access to Automatic Postal Center

MIT Station

84 Massachusetts Avenue
Cambridge MA 02139-9992

Hours of Operation

Mon-Fri 7:30 a.m.-5:00 p.m.

Porter Square

1953 Massachusetts Avenue
Cambridge MA 02140-9998

Hours of Operation

Mon-Fri 7:30 a.m. - 5:30 p.m.
Sat 7:30 a.m. - 2:00 p.m.

Inman Square

1309 Cambridge Street
Cambridge MA 02139-9991

Hours of Operation

Mon-Fri 10 a.m.-5:00 p.m.

East Cambridge

303 Cambridge Street
Cambridge MA -2141-9998

Hours of Operation

Mon-Fri 8:00 a.m.-5:00 p.m.

Carrier Alert Program

The Carrier Alert Program is intended to assist the elderly (65 and older) who live in Cambridge. The Program is free, and it offers home bound adults an extra measure of personal security. It works by cooperation between the United States Postal Service and the Cambridge Council on Aging.

To join the program you will have to fill out an application form. You provide names of the family members or friends to be contacted in case of an emergency. The Cambridge Council on Aging keeps this information confidential and uses it only if there is an emergency. Your letter carrier will make sure you pick up your mail from your mailbox. If the mail stars to accumulate, the Letter Carrier will contact the Council on Aging. The Council on Aging will then get in touch with your contacts to see if assistance is needed.

To obtain an application form and more information, please call the Council on Aging at 617-349-6055, Someone will be able to discuss the Carrier alert Program with you to see if it is right for your and then send you an application form. Once you are enrolled in the program the Postal Service will be notified.

Contact Us

How can we help?

Please provide as much detail below as possible so City staff can respond to your inquiry:

As a governmental entity, the Massachusetts Public Records Law applies to records made or received by the City. Any information received through use of this site is subject to the same provisions as information provided on paper.

Read our complete privacy statement

Service Requests

Enter a service request via SeeClickFix for things like missed trash pickups, potholes, etc.