Winthrop Post Office

112 Main St, Winthrop, ME 04364

Contact Numbers

Phone: 207-377-8455
Fax: 207-377-9424
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Last Collection Times

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

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

  • Bulk Mail Acceptance
  • Packaged Stamps
  • Street Parking

Visit our Links Page for links to 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:

North Monmouth
140 N Main St
2.6 miles away

East Winthrop
2402 Us Route 202
2.9 miles away

1138 Main St
3.3 miles away

744 Main St
3.8 miles away


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I have been calling the Winthrop Maine post office for 2 days. No one answers the phone Trying to find out what happened to a pkg that was delivered there on January 4. That post office is the worst I’ve ever dealt with. Their lazy and ignorant

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