United States Postal Service

Post Office

(800) 275-8777

1 Naval Submarine Base Groton, CT 06349

tools.usps.com

Today: 9:00 AM to 1:00 PM,2:00 PM to 3:30 PM

Visit your local Post Office at 1 Naval Submarine Base to find everything you need to send mail and ship packages. Explore our other products and services like money orders, Post Office boxes, passports, gift cards, and more

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Hours of Operation

Mon 9:00 AM to 1:00 PM
  2:00 PM to 3:30 PM
Tue 9:00 AM to 1:00 PM
  2:00 PM to 3:30 PM
Wed 9:00 AM to 1:00 PM
  2:00 PM to 3:30 PM
Thu 9:00 AM to 1:00 PM
  2:00 PM to 3:30 PM
Fri 9:00 AM to 1:00 PM
  2:00 PM to 3:30 PM
Sat Closed
Sun Closed

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