| Full Orchestra - 921 and String Orchestra - 926 | |
| Region 1 | Full Orchestra 5A - Amarillo, Tascosa |
| Region 2 |
Full Orchestra 4A - Rider; Orchestra 5A - Central
String Orchestra 4A - Rider, Wichita Falls; 5A - Abilene, Central, Cooper |
| Region 3 |
Full Orchestra 5A - Berkner, Garland, Lake Highlands, Plano, Plano West
String Orchestra 5A - North Mesquite, Plano East |
| Region 4 |
Full Orchestra 5A - Longview
String Orchestra 4A - Kilgore; 5A - Lee |
| Region 5 |
Full Orchestra 5A - Arlington, Bowie, Lamar, Martin, The Colony
String Orchestra 4A - Denton; 5A - Lamar, Marcus |
| Region 6 |
Full Orchestra 5A - Lee, Midland, Permian, Odessa
String Orchestra 5A - Lee, Permian |
| Region 7 | |
| Region 8 |
Full Orchestra 5A - A&M Consolidated
String Orchestra 5A -Temple |
| Region 9 |
Full Orchestra 5A - Klein, Klein Forest, Klein Oak, Memorial, Stratford
String Orchestra 5A - Klein, Klein Forest, Memorial, Stratford, The Woodlands |
| Region 10 |
Full Orchestra 5A - Sterling
String Orchestra 5A - Sterling |
| Region 11 | |
| Region 12 |
Full Orchestra 5A - Churchill, Reagan
String Orchestra 4A - Alamo Heights; 5A - Churchill, MacArthur, Reagan |
| Region 13 | |
| Region 14 | String Orchestra 5A - Carroll, King, Nixon |
| Region 15 | String Orchestra 5A - Edinburg North, McAllen, Memorial, Rowe |
| Region 16 |
Full Orchestra 5A - Coronado, Lubbock
String Orchestra 5A - Lubbock |
| Region 17 |
Full Orchestra 5A - Austin, Brazoswood, Dulles
String Orchestra 4A - Kerr; 5A - Austin, Clements, Dulles, Kempner |
| Region 18 |
Full Orchestra 4A - LBJ; 5A - Austin, Bowie, Round Rock, Westlake, Westwood
String Orchestra 4A - LBJ; 5A - Crockett |
| Region 19 |
Full Orchestra 5A - Clear Brook, Kingwood
String Orchestra 5A - Clear Lake, Dobie, Humble, Kingwood |
| Region 20 |
Full Orchestra 5A - Creekview, Turner, Smith
String Orchestra 4A - Highland Park; 5A - Creekview, Washington, Turner, Smith |
| Region 21 | |
| Region 22 | String Orchestra 5A - Eastwood, Hanks |
| Region 23 |
Full Orchestra 5A - Jersey Village, Katy, Taylor
String Orchestra 5A - Bellaire, Cinco Ranch, Cypress-Fairbanks, Cypress Creek, Katy, Lamar, Taylor |