SOUTH TEXAS REGION The South Texas Region covers about 37,800 square miles in southern Texas, stretching from the Gulf of Mexico to the Mexican border. The region includes four metropolitan statistical areas (MSAs): the Corpus Christi MSA, which includes Aransas, Nueces, and San Patricio counties.Our County Coverage in the South Texas RegionAransas, Bee, Brooks, Duval, Jim Wells, Kenedy, La Salle, Live Oak, McMullen, Nueces, Refugio, and San Patricio START SEARCHING SEARCH SOUTH TEXAS COUNTIES Have a questions? Contact us today! 361-208-6880[email protected]