Sonic Drive-In Prices and Locations in San Marcos, TX

Looking for a Sonic Drive-In near you?

Also called Sonic Drive-In, Sonic Corp. is a chain of American drive-in fast-food restaurants based in Oklahoma City, Oklahoma, with 3561 locations in 43 US states by August 31, 2011. The food Sonic provides include hamburgers and French fries, as well as onion rings, corn dogs, chili dogs, breakfast toaster sandwiches, soft drinks, slushes, milkshakes, and ice creams like sundaes and banana splits.