| Coffeyville, KS (District) |
| Cohagen Elem, MT (District) |
| Cohasset, MA (District) |
| Cohoes City School District, NY (District) |
| Coke County, TX (ISD) |
| Colbert, OK (District) |
| Colbert County, AL (District) |
| Colbert County, AL (ISD) |
| Colby Public Schools, KS (District) |
| Colby School District, WI (District) |
| Colchester School District, CT (District) |
| Colcord, OK (District) |
| Cold Spring Elementary, CA (District) |
| Cold Spring Harbor Central School District, NY (District) |
| Coldspring-Oakhurst Cisd, TX (District) |
