| Crutcho, OK (District) |
| Crystal City 47, MO (District) |
| Crystal City ISD, TX (District) |
| Crystal Lake CCSD 47, IL (District) |
| Csdb, CO (District) |
| Csi Charter School, NH (District) |
| Csusa Donnan, IN (District) |
| Csusa Howe, IN (District) |
| Csusa Manual, IN (District) |
| Ctc Of Lackawanna County, PA (District) |
| Cuba City School District, WI (District) |
| Cuba Independent Schools, NM (District) |
| Cuba-rushford Central School District, NY (District) |
| Cucamonga Elementary, CA (District) |
| Cudahy School District, WI (District) |
