Old Greenwich Post Office

36 Arcadia Rd, Old Greenwich, CT 06870

Contact Numbers

Phone: 203-637-1405
Fax: 203-637-0685
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 5:30pm
Tuesday 5:30pm
Wednesday 5:30pm
Thursday 5:30pm
Friday 5:30pm
Saturday 4:30pm
Sunday Closed

Passport Appointment Hours*

Monday 9:00am - 1:00pm, 2:00pm - 3:00pm
Tuesday 9:00am - 1:00pm, 2:00pm - 3:00pm
Wednesday 9:00am - 1:00pm, 2:00pm - 3:00pm
Thursday 9:00am - 1:00pm, 2:00pm - 3:00pm
Friday 9:00am - 1:00pm, 2:00pm - 3:00pm
Saturday 9:00am - 12:00pm
Sunday Closed

  • Visit our Passport FAQ page for a complete overview of what to bring, what you need to know, and how long it will take.
  • You will need two forms of Identification with copies.
  • A passport quality photo. Available at location.
  • The appropriate application form printed and filled out, and the required fee for applying or renewing.
  • You can find up to date costs, information, and forms at the State Departments Travel Site

*An appointment is required to apply for or renew US Passports. Please Call or schedule online.

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

  • 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)
  • Passport Acceptance
  • Passport Photo
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Street Parking
  • Passport Appointment Hours

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:

427 West Ave Rm 334
0.4 mile away

West Ave Carrier Unit
427 West Ave
0.4 mile away

West Ave
317 West Ave
0.5 mile away

1273 E Putnam Ave
0.6 mile away


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Old Greenwich Post Office has become very unreliable. When told to hold mail it nine-the-less gets delivered. And now its 8:43 pm and still no delivery. Very upset. My absentee ballot is waiting and now a storm is ciming.


Mail man car 128672. Was very rude and even cursed at me because there is no space in road i i was parked next to mailbox. Unexceptable. I had just entered my car to leave and started to call Inconsiderable and said move your fu**ing car. I jad just entered and told him i was leaving and he got even more mad because i was parked there. Im sorry but that was out of line unexectable.


the old greenwich website is kind of jumbled—the hours do not ,match the days. for example—monday - friday is blank and below is saturday with 9-3 hours etc. needs to be adjusted. po geniuses!


I am missing 4 tracked packages from old greenwich ps. I filed a change of address notice prior to moving but I haven't received any yet. What course of action do I peruse to get them. The home owner was home and available never received then.

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