Post office locations in 06357
| Post Office | Address | Phone | Hours |
| NIANTIC | 58 PENNSYLVANIA AVE STE 2 NIANTIC, CT 06357 - 9991 | 860-739-8211 | Mon-Fri 08:30 AM - 05:00 PM Sat 08:30 AM - 12:00 PM Sun Closed |
| Post Office | Address | Phone | Hours |
| NIANTIC | 58 PENNSYLVANIA AVE STE 2 NIANTIC, CT 06357 - 9991 | 860-739-8211 | Mon-Fri 08:30 AM - 05:00 PM Sat 08:30 AM - 12:00 PM Sun Closed |