Sonic Restaurants Address955 US Highway 90 East, Medina County, Castroville, US Websitehttps://locations.sonicdrivein.com/tx/castroville/955-highway-90-east.html AreaMedina County, Castroville, United States Open on map Directions Back to directory search ☆ ☆ ☆ ☆ ☆ Submit