Post offices

Cambridge Post Office

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Cambridge, MA United States Post Office

ⓘ Hours as published by the business

770 Massachusetts Avenue, Cambridge, MA
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Opening hours

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▤ Contact & details

☎ Phone
+1 617 575 8700
⌖ Address
770 Massachusetts Avenue, Cambridge, MA 02139
◇ Directions
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◆ Category
Post offices
◎ Country
US
◇ Operated by
United States Postal Service
▰ Official name
Clifton Merriman Post Office Building
♿ Accessibility
Yes

Record checked

About this location

A few stories people tell about this place

1. One morning, a delivery driver asked his colleague: ‘Did you hear that old post office is haunting packages?’ His friend replied: ‘What do you mean?’ ‘I heard it moved them to another room,’ said the driver, shrugging. ‘But every night, those packages mysteriously end up back in the old post office.’ The two men laughed, and their neighbor overheard, saying, ‘That’s nothing—my mail always arrives late!’

2. A few years ago, every morning around sunrise, an elderly gentleman started showing up at the Cambridge Post Office. He’d quietly slip inside and disappear into the mail sorting room for half an hour or so before anyone else arrived. No one knew who he was or why he came—until one day someone noticed something strange. Finally, someone asked him what he did in there. With a twinkle in his eye, he replied, ‘I’m just helping organize the universe.’ Turned out he was a retired librarian, and everyone laughed it off as an amusing little ritual. Now, whenever anyone sees him entering the post office early in the morning, they wave and say, ‘Good luck with that, old timer!’

3. In the early hours of one autumn morning, a postal worker called out to his colleagues: 'Have you seen our new nighttime visitor?' It turned out that every night, a friendly neighborhood cat would sneak into the post office and sleep on top of the mail sorting machine. No one knew where he came from or why he chose their office, but soon enough, everyone grew fond of him. The workers named him ‘Mail Paws’ and even left him some treats each evening. So, while most people thought it was strange, they found it charming—and eventually, Mail Paws became an unofficial mascot for Cambridge Post Office.

4. One day, after school, little Sarah walked into the post office and asked the clerk, 'Why does our mailbox talk back when I drop letters in?' The clerk smiled and replied, ‘Oh, that’s because your mailbox is a wise old gentleman who loves letters.’ Little Sarah giggled and said, ‘Really?’ The clerk nodded, and as they were talking, an envelope fell from above with a note inside: “Dear Cambridge Post Office, please deliver happiness daily.” They both looked up, and there was only empty air where the envelope came from. From then on, whenever someone visited the post office, they’d whisper, ‘Did you hear that? Our mailbox talks again!’

Source details

Business attributes

Address

City
Cambridge
Housenumber
770
Postcode
02139
State
MA
Street
Massachusetts Avenue

Contacts

Phone
+1 617 575 8700

Hours & freshness

Check date
2026-06-07
Opening hours
2025-11-03
Opening hours
Mo-Fr 07:30-19:00, Sa 07:30-14:00, PH off

Accessibility

Wheelchair
Yes

Brand & operator

Brand
United States Post Office
Wikidata
Q668687
Official name
Clifton Merriman Post Office Building
Operator
United States Postal Service
Short
USPS
Type
public
Wikidata
Q668687
Wikipedia
en:United States Postal Service
Short name
USPS

What it offers

Amenity
post office

Source: OpenStreetMap, 28 recorded details for this place, last confirmed 2026-06-07.

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