| Cowgill R-Vi, MO (District) |
| Cowley County, KS (ISD) |
| Cowley County Special Services Cooperative, KS (District) |
| Cowlitz County, WA (ISD) |
| Coxsackie-athens Central School District, NY (District) |
| Coyle, OK (District) |
| Cozad Community Schools, NE (District) |
| Cplc Community Schools Dba Hiaki High School, AZ (District) |
| Cplc Community Schools Dba Toltecalli High School, AZ (District) |
| Crab Orchard CUSD 3, IL (District) |
| Craft Academy, KY (PSA) |
| Craig, VA (District) |
| Craig City School District, AK (District) |
| Craig County, OK (ISD) |
| Craig R-Iii, MO (District) |
