Clinton Post Office

320 High St, Clinton, MA 01510

Contact Numbers

Phone: 978-365-4903
Fax: 978-365-1784
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Lobby Hours
PO Box Access Available

Monday 5:30am - 5:30pm
Tuesday 5:30am - 5:30pm
Wednesday 5:30am - 5:30pm
Thursday 5:30am - 5:30pm
Friday 5:30am - 5:30pm
Saturday 5:30am - 4:00pm
Sunday Closed

Last Collection Times

Monday 5:30pm
Tuesday 5:30pm
Wednesday 5:30pm
Thursday 5:30pm
Friday 5:30pm
Saturday 4:00pm
Sunday Closed

Passport Appointment Hours*

Monday 10:30am - 3:30pm
Tuesday 10:30am - 3:30pm
Wednesday 10:30am - 3:30pm
Thursday 10:30am - 3:30pm
Friday 10:30am - 3:30pm
Saturday 8:30am - 11:00am
Sunday Closed

  • Visit our Passport FAQ page for a complete overview of what to bring, what you need to know, and how long it will take.
  • You will need two forms of Identification with copies.
  • A passport quality photo. Available at location.
  • The appropriate application form printed and filled out, and the required fee for applying or renewing.
  • You can find up to date costs, information, and forms at the State Departments Travel Site

*An appointment is required to apply for or renew US Passports. Please Call or schedule online.

Bulk Mail Acceptance Hours

Monday 9:00am - 3:00pm
Tuesday 9:00am - 3:00pm
Wednesday 9:00am - 3:00pm
Thursday 9:00am - 3:00pm
Friday 9:00am - 3:30pm
Saturday Closed
Sunday Closed

  • Bulk Mail Acceptance
  • Bulk Mail Account Balance
  • Bulk Mail New Permit
  • Burial Flags
  • Business Line
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • General Delivery
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Passport Acceptance
  • Passport Photo
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Lot Parking
  • Passport Appointment Hours

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:

South Lancaster
93 Sawyer St
0.9 mile away

771 Main St
1.5 miles away

1092 Main St
2.3 miles away

6 Clinton Rd
2.9 miles away


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Hi it's a Saturday and I put some mail out to be picked up by the postman. But what I'm noticing is since 7 AM. That's odd because they're here before noon on Sat. The ketters i left for pick up were bills so this is concerning if i cant get to the physical post office. Is no one working on the route for leighton ave in Clinton today?


Good morning. I just received my Kohl's department store add in the mail. The back page has a perfect square cut out of it. Looks as though there was a coupon, that someone tore/cut out. Please advise, and let me know if you'd like a picture. Thanks.


I have been waiting for a package to be delivered since January 11th. This package was accepted by USPS in Clinton from UPS since that date. It took 9 days for a package to go from the Clinton Post Office to a Clinton address... a snail would have delivered it faster..


We live on Gorham Ave and today the mailman left the entire mail bin open for everyone to just dig into everyone’s private mail. This mailman has been slacking and could careless about his job. Very unprofessional.


Do not know the name of the man that delivered the mail today on Walnut Street but someone needs to speak with him. He obviously takes no pride in his job. There are many issues with him...he cuts through yards rather than use the sidewalk, when it rains the mail is very wet as he does not keep his bag closed, he many times haphazardly tosses the mail in the box, at times loses mail on the sidewalk...I have found neighbors mail;including a check which I had to scream at him (he had phone buds in his ears) and when I got his attention, his reply was thank goodness they would have killed me, I have also had to hunt for my mail as it was on the ground near the neighbors fence. The young man that delivered mail yesterday did a good job and our regular mail girl does a fantastic job. I have been meaning to say something about today's mail person for quite some time as this has been going on for awhile.

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