| Alpine Christian School |
| Andrews High School |
| Antonian College Preparatory High School |
| Calvary Baptist Academy |
| Denton High School |
| Faith Christian Academy |
| Founders Classical Academy |
| Gonzales High School |
| Ira High School |
| Kelton High School |
| Lake Travis High School |
| Liberty Eylau High School |
| Mansfield ISD |
| Mt. Pleasant High School |
| Muenster High School |
| Porter High School |
| River Hills Christian Academy |
| San Antonio Christian School |
| Sharyland High School |
| Sharyland Pioneer High School |
| Splendora High School |
| Uvalde Classical Academy |
| Van Alstyne High School |
| Westlake High School |
