The South Texas Chapter is the Home Chapter for the following counties:

Aransas, Bee, Brooks, Calhoun, Cameron, DeWitt, Duval, Goliad, Hidalgo, Jackson, Jim Hogg, Jim Wells, Karnes,  Kenedy, Kleberg, Live Oak, McMullen, Nueces, Refugio, San Patricio, Starr, Victoria, and Willacy