| Coachella Valley Unified, CA (District) |
| Coahoma Ahs, MS (District) |
| Coahoma County, MS (ISD) |
| Coahoma County School District, MS (District) |
| Coahoma ISD, TX (District) |
| Coal City CUSD 1, IL (District) |
| Coal County, OK (ISD) |
| Coalgate, OK (District) |
| Coalinga-Huron Unified, CA (District) |
| Coast Unified, CA (District) |
| Coastal Plains High School, GA (PSA) |
| Coastline ROP, CA (District) |
| Coatesville Area SD, PA (District) |
| Cobb County, GA (District) |
| Cobb County, GA (ISD) |
