Post Office - Valier 101 E Main St Valier, IL 62891 Phone : (618) 724-9350 Post Office - Valier Business Category Post Offices Toll-Free           (800) ASK-USPS United States Government--post Offices, Valier Christopher, IL 62822 Phone : (618) 724-9350 Business Category Government Offices-Federal Post Offices Government Offices & Public Schools