List of Sonic Stores in Johnston, IA Outlet Note Regular Brands Sonic Iowa Johnston 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 outlet - Johnston 5350 Merle Hay Rd (515) 334-7309 People Also Viewed