United States Government--postal Service, New Buffalo Ofc 13 Creek Rd New Buffalo, PA 17069 Phone : (717) 834-5464 Business Category Government Offices-Federal Government Offices & Public Schools Post Office - New Buffalo 13 Creek Rd New Buffalo, PA 17069 Phone : (717) 834-5464 Business Category Post Offices Toll-Free           (800) ASK-USPS