Post Office - Lava Hot Springs 15 S Center St Lava Hot Springs, ID 83246 Phone : (208) 776-5680 Business Category Post Offices Toll-Free           (800) ASK-USPS United States Government--post Office 4 S Center St Lava Hot Springs, ID 83246 Phone : (208) 776-5680 Business Category Government Offices-Federal Post Offices Government Offices & Public Schools