List of Sonic Stores in Blanco, TX Outlet Note Regular Brands Sonic Texas Blanco 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 - Blanco 1020 Us Highway 281 S (830) 833-4600 Sonic outlet - Blanco 1022 S US Highway 281 (830) 833-4600 People Also Viewed