| Summit County Educational Service Center, OH (ISD) |
| Summit Hill SD 161, IL (District) |
| Summit Public School: Atlas, WA (District) |
| Summit Public School: Olympus, WA (District) |
| Summit Public School: Sierra, WA (District) |
| Summit Public Schools, NJ (District) |
| Summit Re-1, CO (District) |
| Summit School District, SD (District) |
| Summit SD 104, IL (District) |
| Summit Valley School District, WA (District) |
| Sumner Co Educational Services, KS (District) |
| Sumner County, KS (ISD) |
| Sumner County, TN (ISD) |
| Sumner County, TN (District) |
| Sumner School District, WA (District) |
