Mystic Post Office

23 E Main St, Mystic, CT 06355

Contact Numbers

Phone: 860-536-8143
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Lobby Hours
PO Box Access Available

Monday 6:00am - 5:30pm
Tuesday 6:00am - 5:30pm
Wednesday 6:00am - 5:30pm
Thursday 6:00am - 5:30pm
Friday 6:00am - 5:30pm
Saturday 6:15am - 3:30pm
Sunday Closed

Last Collection Times

Monday 5:00pm
Tuesday 5:00pm
Wednesday 5:00pm
Thursday 5:00pm
Friday 5:00pm
Saturday 2:00pm
Sunday Closed

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 - 3:00pm
Saturday Closed
Sunday Closed

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

  • 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)
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Street 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 Mystic
55 W Mystic Ave
0.5 mile away

19 1/2 Pearl St
1.5 miles away

Old Mystic
47 Main St
1.5 miles away

Groton Long Point
44 Beach Rd
2.4 miles away


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the mail does not come at regular times like it use to sometimes at noon and sometimes late in the afternoon is this going to be the norm thank you Al


On more than one occasion, I've watched the postman walk up to the duplex I live in, deliver mail to the home next to mine, and then walk away without delivering to me. The walk is shovelled on one side, as are the steps, but access to both doors/mailboxes is available once on the landing since there is no snow there. Very poor service.

* is not a part of, or affiliated with, the official United States Postal Service (USPS).