Post Office - Poquonock 1771 Poquonock Ave Poquonock, CT 06064 Phone : (860) 687-6928 Post Office - Poquonock Business Category Post Offices Toll-Free           (800) ASK-USPS United States Government--united States Postal Service, Post Offices, Poquonock Post Office 1771 Poquonock Ave Poquonock, CT 06064 Phone : (860) 687-6928 Business Category Government Offices-Federal Post Offices Government Offices & Public Schools