United States Government--postal Service, Harrisburg Stations & Branches, Offices, Marysville Ofc 309 Camm Marysville, PA 17053 Phone : (717) 957-2111 Business Category Government Offices & Public Schools United States Government--postal Service, Marysville Ofc 309 Cameron St Marysville, PA 17053 Phone : (717) 957-2111 Business Category Government Offices-Federal Government Offices & Public Schools Post Office - Marysville 309 Cameron St Marysville, PA 17053 Phone : (717) 957-2111 Business Category Post Offices Toll-Free           (800) ASK-USPS