List of Sonic Stores in Post Falls, ID Outlet Note Regular Brands Sonic Idaho Post Falls Rating 4.5 based on 91 votes Official Website https://www.sonicdrivein.com/ Products Snacks Ice Cream Drinks Chicken Hot Dogs Burgers NameAddressPhone Name/Address/Phone Sonic Drive-In outlet - Post Falls 750 N Highway 41 (208) 777-7162 Sonic outlet - Post Falls 750 N Highway 41 (208) 777-7162 People Also Viewed