| Full Orchestra - 921 and String Orchestra - 926 | |
| Region 1 | 921 (5A) Amarillo / 926 (5A) Tascosa, Amarillo |
| Region 2 | 926 (5A) Cooper (Abilene), Central (San Angelo); (4A) Rider (Wichita Falls) |
| Region 3 | 921 (5A) Berkner (Richardson), Garland, Plano / 926 (5A) North Mesquite, Plano East; (4A) Poteet (Mesquite), West Mesquite |
| Region 5 | 921 (5A) Bowie, Martin, Lamar, Arlington / 926 (5A) Lamar; (4A) Denton, Ryan |
| Region 6 | 921 (5A) Lee, Permian / 926 (5A) Lee, Permian |
| Region 8 | 921 (5A) A&M Consolidated / 926 (5A) A&M Consolidated, Temple, Bryan |
| Region 9 | 921(5A) Memorial, Klein, Klein Forest, Klein Oak, Stratford / 926 (5A) Memorial, Klein, Klein Forest, Stratford |
| Region 10 | 921 (5A) Robert E. Lee, Sterling / 926 (5A) Sterling, West Brook |
| Region 11 | 926 (5A) Clark, Health Careers, Holmes, Taft |
| Region 12 | 921 (5A) Lee, Churchill, Roosevelt / 926 (5A) Madison, MacArthur, Churchill |
| Region 14 | 926 (5A) Nixon (Laredo) |
| Region 15 | 921 (5A) Memorial (McAllen), Edinburg North, Edinburg / 926 (5A) Edinburg, Edinburg North, Rowe (McAllen) |
| Region 16 | 921 (5A) Monterey, Coronado, Lubbock / 926 (5A) Lubbock |
| Region 17 | 921 (5A) Brazoswood, Clements, Dulles, Austin (4A) Alief Kerr / 921 (5A) Kempner, Hastings, Dulles |
| Region 18 | 921 (5A) Westlake, Round Rock, McNeil, Austin, Bowie, Westwood; (4A) Lanier (Austin), LBJ (Austin) |
| Region 19 | 921 (5A) Clear Brook, Clear Lake, Dobie, Kingwood, LaPorte / 926 (5A) Clear Lake, Deer Park, Dobie, Humble, Kingwood, Pasadena, South Houston |
| Region 20 | 921 (5A) Newman Smith, Turner / 926 (5A) MacArthur, Irving, Newman Smith, Turner, Washington |
| Region 21 | 926 (5A) Longview; (4A) Kilgore |
| Region 22 | 926 (5A) Eastwood |
| Region 23 | 921 (5A) Katy, Taylor / 926 (5A) Bellaire, Cypress Creek, Lamar, Katy, Taylor |