List of US Post Office Stores in Greenwich, CT Outlet Note Regular Brands US Post Office Connecticut Greenwich Rating 4.5 based on 76 votes Official Website https://www.usps.com/ Products Postal Service NameAddressPhone Name/Address/Phone US Post Office outlet - Greenwich 44 Amogerone Cross Way (203) 869-3737 US Post Office outlet - Greenwich 25 Glen Ridge Rd, #6 (203) 531-4146 US Post Office outlet - Greenwich 29 Valley Dr (203) 625-3168 People Also Viewed