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

Pickup Services Hours

Monday-Friday 8:30am - 5:00pm
Saturday 8:30am - 12:00pm
Sunday Closed

Lobby Hours

Monday-Sunday 12:01am - 11:59pm

PO Box Access Hours

Monday-Sunday 12:01am - 11:59pm

PO Box Delivery Time

Monday-Saturday 11:00am
Sunday Closed

Last Collection Times

Monday-Friday 5:00pm
Saturday 12:30pm
Sunday Closed

Global Express Guaranteed® Hours

Monday-Friday 8:30am - 5:00pm
Saturday 8:30am - 12:00pm
Sunday Closed

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

  • Burial Flags
  • Duck Stamps
  • General Delivery
  • Global Express Guaranteed®
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Packaged Stamps
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Priority Mail International®
  • Lot Parking

Visit our Links Page for Change of Address, Hold Mail/Stop Delivery, PO Boxes™ rentals and fees, Rates on Postage Stamps and Freight/Shipping, Holidays, Bulk Mail, Money Orders, 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
2.3 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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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).