Does this Sonic have Dr Pepper? Usually, yes. It's on Sonic's usual fountain lineup, but nobody has checked this location yet.
Usually on the fountain at Sonic (not checked at this location yet): Dr Pepper, Root Beer, Sprite, Coca-Cola, Diet Coke, Coke Zero, Lemonade, Iced Tea.
Address: 5350 Merle Hay Road, Johnston, IA
Hours: Mon–Fri midnight–1am, 10am–midnight; Sat–Sun midnight–2am, 10am–midnight