| Full Orchestra - 921 and String Orchestra - 926 |
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| Region 1 | (5A) Amarillo: Amarillo, Tascosa. |
| Region 2 | (5A) San Angelo: Central, Wichita Falls: Rider. |
| Region 3 | |
| Region 4 | (4A) Kilgore. |
| Region 5 | (5A) Arlington: Arlington, Bowie, Lamar, Martin; (4A) Denton. |
| Region 6 | (5A) Midland: Midland, Lee, Odessa: Permian. |
| Region 7 | |
| Region 8 | (5A) A&M Consolidated, Bryan, Temple. |
| Region 9 | (5A) Klein, Klein Forest, Klein Oak, Houston: Memorial, Stratford. |
| Region 10 | (5A) Baytown: Sterling. |
| Region 11 | |
| Region 12 | (5A) San Antonio: Churchill, Lee, MacArthur. |
| Region 13 | |
| Region 14 | (5A) Laredo: Nixon. |
| Region 15 | 5A) Edinburg, Edinburg North, McAllen: McAllen, Memorial. |
| Region 16 | (5A) Lubbock: Lubbock, Coronado |
| Region 17 | (5A) Alief: Elsik, Clute: Brazoswood, Houston: Kerr, Sugar Land: Austin, Clements, Dulles, Kempner. |
| Region 18 | |
| Region 19 | (5A) Clear Creek, Clear Lake, Deer Park, Dobie, Humble, Kingwood, South Houston; (4A) Clear Brook. |
| Region 20 | (5A) Carrolton: Smith, Turner, Dallas: Washington Arts Magnet, Irving: MacArthur, Nimitz; (4A) Highland Park. |
| Region 21 | (5A) Longview; (4A) Kilgore. |
| Region 22 | (5A) El Paso: Hanks. |
| Region 23 | (5A) Bellaire, Cypress Creek, Cy-Fair.
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