List of Sonic Stores in Boulder, CO Outlet Note Regular Brands Sonic Colorado Boulder 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 - Boulder 3853 57th St (720) 485-3457 People Also Viewed