| Triopia CUSD 27, IL (District) |
| Trip-Delmart School District, SD (District) |
| Triplains, KS (District) |
| Tripoli Comm School District, IA (District) |
| Triton, MA (District) |
| Triton School Corporation, IN (District) |
| Triton School District, MN (District) |
| Triumph Academy, MI (PSA) |
| Triumphant Learning Center, AZ (District) |
| Trivium Academy, TX (PSA) |
| Trivium Preparatory Academy, AZ (District) |
| Triway Local School District, OH (District) |
| Trona Joint Unified, CA (District) |
| Trotwood Preparatory & Fitness Academy, OH (PSA) |
| Trotwood-Madison City School District, OH (District) |
