The Cos Cob Post Office branch at 152 East Putnam Avenue closed temporarily for business on Friday, Aug 7, according to a press release from the US Postal Service.
Cos Cob post office. Aug 11, 2026 Photo: Leslie Yager
Signage at Cos Cob post office. Aug 11, 2026 Photo: Leslie Yager
Signage at the loading dock behind Cos Cob post office. Aug 11, 2026 Photo: Leslie Yager
Signage at the loading dock behind Cos Cob post office. Aug 11, 2026 Photo: Leslie Yager
Effective Saturday, August 8, 2026, retail services will be offered at the Downtown Greenwich Post Office during the closure.
• Downtown Greenwich
44 Amogerone Crossway
Greenwich, CT 06830
Retail Window Hours
Window Service M-F 9:00 AM – 5:30 PM
Saturday 9:00 AM – 12:30 PM
Sunday Closed
Drop shipments will be accepted at the Greenwich
• Greenwich Post Office
29 Valley Dr
Greenwich, CT 06831
Drop Shipment Hours
Drop Ship Monday – Saturday 8:15 AM – 3:00 PM
“We apologize for this inconvenience to our customers and plan to have the COS COB Post Office reopened and fully operational as soon as possible,” the postal service said in their release.