| City On A Hill Charter Public (District), MA (District) |
| City View ISD, TX (District) |
| CKEC, KY (ISD) |
| Clackamas County, OR (ISD) |
| Clackamas Esd, OR (District) |
| Claflin, KS (District) |
| Claiborne Co School Dist, MS (District) |
| Claiborne County, MS (ISD) |
| Claiborne County, TN (District) |
| Claiborne County, TN (ISD) |
| Claiborne Parish, LA (District) |
| Claiborne Parish, LA (ISD) |
| Clairton City SD, PA (District) |
| Clallam County, WA (ISD) |
| Clancy Elem, MT (District) |
