| CHSD 155, IL (District) |
| CHSD 218, IL (District) |
| CHSD 94, IL (District) |
| CHSD 99, IL (District) |
| Chualar Union, CA (District) |
| Chugach School District, AK (District) |
| Chula Vista Elementary, CA (District) |
| Church School District, MI (District) |
| Churchill County, NV (ISD) |
| Churchill County School District, NV (District) |
| Churchville-chili Central School District, NY (District) |
| Cibola County, NM (ISD) |
| Cicero SD 99, IL (District) |
| Cien Aguas International School, NM (PSA) |
| Cienega Union Elementary, CA (District) |
