U S Government Of--us Postal Service 5800 Route 378 Center Valley, PA 18034 Phone : (610) 282-3827 Business Category Government Offices-Federal Government Offices & Public Schools Post Office - Center Valley 5800 Route 378 Center Valley, PA 18034 Phone : (610) 282-3827 Business Category Government Offices-Federal Post Offices Government Offices & Public Schools Toll-Free           (800) ASK-USPS