U S Government--post Office Hickory Vly Hickory Valley, TN 38042 Phone : (731) 764-2743 Business Category Post Offices Government Offices & Public Schools Post Office - Hickory Valley 7065 Highway 18 S Hickory Valley, TN 38042 Phone : (731) 764-2743 Business Category Post Offices Toll-Free           (800) ASK-USPS