U S Government--postal Service, Schafferstown Ofc Schaefferstown, PA 17088 Phone : (717) 949-3027 Business Category Government Offices-Federal Government Offices & Public Schools Post Office - Schaefferstown 608 W Main St Schaefferstown, PA 17088 Phone : (717) 949-3027 Business Category Post Offices Toll-Free           (800) ASK-USPS