Harwich Port Post Office

10 Post Office Sq, Harwich Port, MA 02646

Contact Numbers

Phone: 508-430-6100
Fax: 508-432-9724
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Lobby Hours
PO Box Access Available

Monday 6:00am - 5:15pm
Tuesday 6:00am - 5:15pm
Wednesday 6:00am - 5:15pm
Thursday 6:00am - 5:15pm
Friday 6:00am - 5:15pm
Saturday 6:00am - 2:30pm
Sunday Closed

Last Collection Times

Monday 3:45pm
Tuesday 3:45pm
Wednesday 3:45pm
Thursday 3:45pm
Friday 3:45pm
Saturday 2:30pm
Sunday Closed

*This facility does not process US Passports applications or renewals. Check nearby locations below.

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

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:

West Harwich
216 Route 28
0.9 mile away

South Harwich
944 Route 28
1.6 miles away

Dennis Port
3 Mill St
2.0 miles away

South Chatham
2455 Main St
2.4 miles away


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Just a shout out to employee Dan Joslin! With a package over 4 1/2 weeks late and another still en route after close to 5 weeks, Dan kindly researched and called me at home to follow up on the delay! Kindness so welcome in this day of stress and a pandemic. Kim another kind postal worker, let me know that there were 5 times the volume of packages this year due to the pandemic! Essential workers need our thanks and praise!

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