Sonic LocationsHome » Sonic Locations » Delaware Tweet Follow @ffmenuprice Total restaurants in the States3,126 Locations across the USThe restaurants sitewww.sonicdrivein.comExact Zip Code - Where to find this location Sonic - Bridgeville - 18757 Sussex Hwy Bridgeville, DE 19933 Sonic Drive-In - Dover - 1481 N Dupont Hwy Dover, DE 19901 Sonic - Dover - 375 Gateway South Blvd Dover, DE 19901