Niantic Post Office

58 Pennsylvania Ave Ste 2, Niantic, CT 06357

Contact Numbers

Phone: 860-739-8211
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Lobby Hours
PO Box Access Available

Monday 24 hours
Tuesday 24 hours
Wednesday 24 hours
Thursday 24 hours
Friday 24 hours
Saturday 24 hours
Sunday 24 hours

Last Collection Times

Monday 5:00pm
Tuesday 5:00pm
Wednesday 5:00pm
Thursday 5:00pm
Friday 5:00pm
Saturday 12:30pm
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)
  • Money Orders (International)
  • Packaged Stamps
  • 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:

East Lyme
225 Boston Post Rd
2.1 miles away

222 Boston Post Rd
2.4 miles away

South Lyme
389 Shore Rd
2.9 miles away

New London
27 Masonic St Ste 1
4.1 miles away


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Wonderful, I have never had a bad experience there.


Just arrived this evening to retrieve my mail and found the card reader used to access the space had been removed. No sign. No notice. No call. And for me, no mail. What happened? No ones answers the only phone number listed, and there's no answering machine. Anybody? Anyone?

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