List of US Post Office Stores in Cossayuna, NY Outlet Note Regular Brands US Post Office New York Cossayuna Rating 4.5 based on 76 votes Official Website https://www.usps.com/ Products Postal Service NameAddressPhone Name/Address/Phone US Post Office outlet - Cossayuna 703 County Route 49 (518) 692-7820 People Also Viewed