List of Sonic Stores in Castle Rock, CO Outlet Note Regular Brands Sonic Colorado Castle Rock 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 - Castle Rock 210 Founders Pkwy (303) 663-6856 People Also Viewed