| Tri Valley CUSD 3, IL (District) |
| Tri Valley School District, SD (District) |
| Tri Village Local School District, OH (District) |
| Tri-Center Comm School District, IA (District) |
| Tri-Central Community Schools, IN (District) |
| Tri-Cities ROP, CA (District) |
| Tri-City United School District, MN (District) |
| Tri-County Area School District, WI (District) |
| Tri-County Career Center, OH (District) |
| Tri-County Comm School District, IA (District) |
| Tri-County Ilc, OK (District) |
| Tri-County JVSD CTPD, OH (District) |
| Tri-County North Local School District, OH (District) |
| Tri-County R-Vii, MO (District) |
| Tri-County ROP, CA (District) |
