| Carlisle ISD, TX (District) |
| Carlisle Local School District, OH (District) |
| Carlisle School District, AR (District) |
| Carlsbad Municipal Schools, NM (District) |
| Carlsbad Unified, CA (District) |
| CARLSTADT PUBLIC SCHOOL, NJ (District) |
| Carlstadt-East Rutherford Regional High School, NJ (District) |
| Carlton County, MN (ISD) |
| Carlton Public School District, MN (District) |
| Carlyle CUSD 1, IL (District) |
| Carlynton SD, PA (District) |
| Carman-Ainsworth Community Schools, MI (District) |
| Carmel Central School District, NY (District) |
| Carmel Clay Schools, IN (District) |
| Carmel Unified, CA (District) |
