U S Government--internal Revenue Service, Post Office Saltillo, TN 38370 Phone : (731) 687-3466 Business Category Government Offices-Federal Post Offices Government Offices & Public Schools Post Office - Saltillo 47980 Highway 69 Saltillo, TN 38370 Phone : (731) 687-3466 Post Office - Saltillo Business Category Post Offices Toll-Free           (800) ASK-USPS