| Career Preparation Network, IL (District) |
| Career Success Schools, AZ (District) |
| Career Technical Planning District 600, OH (District) |
| Career Technical Planning District 602, OH (District) |
| Carey Ex Vlg School District, OH (District) |
| Caribou County, ID (ISD) |
| Carinos De Los Ninos, NM (PSA) |
| Carl Junction R-I, MO (District) |
| Carle Place Union Free School District, NY (District) |
| Carlinville CUSD 1, IL (District) |
| Carlisle, MA (District) |
| Carlisle Area SD, PA (District) |
| Carlisle Comm School District, IA (District) |
| Carlisle County, KY (Phantom) |
| Carlisle County Schools, KY (District) |
