United States Government--postal Service, Post Offices Montvale, VA 24122 Phone : (540) 947-2311 Business Category Post Offices Government Offices & Public Schools Post Office - Montvale 11345 W Lynchburg Salem Tpke Montvale, VA 24122 Phone : (540) 947-2311 Post Office - Montvale Business Category Post Offices Toll-Free           (800) ASK-USPS