U S Government--postal Service, Enon Valley Enon Valley, PA 16120 Phone : (724) 336-5130 Business Category Government Offices-Federal Government Offices & Public Schools Post Office - Enon Valley 7150 Vine St Enon Valley, PA 16120 Phone : (724) 336-5130 Business Category Post Offices Toll-Free           (800) ASK-USPS