| Copenhagen Central School District, NY (District) |
| Copiague Union Free School District, NY (District) |
| Copiah Co School Dist, MS (District) |
| Copiah County, MS (ISD) |
| Copley-Fairlawn City School District, OH (District) |
| Coplin Plt School Department, ME (District) |
| Coppell ISD, TX (District) |
| Copper Country ISD, MI (ISD) |
| Copper Island Academy, MI (PSA) |
| Copper River School District, AK (District) |
| Copperas Cove ISD, TX (District) |
| Coquille Sd 8, OR (District) |
| Coral Community Charter, NM (PSA) |
| Corbett Sd 39, OR (District) |
| CORBIN CITY BOARD OF EDUCATION, NJ (District) |
