| Capitan Municipal Schools, NM (District) |
| Capitol Area Academy, MI (PSA) |
| Capitol Region Education Council, CT (District) |
| Capitol West Academy Agency, WI (PSA) |
| Capstone Academy Charter School (SDA), MI (PSA) |
| Capstone Classical Academy, UT (PSA) |
| Caratunk School Department, ME (District) |
| Carbon, MT (District) |
| Carbon Career & Technical Institute, PA (District) |
| Carbon Cliff-Barstow SD 36, IL (District) |
| Carbon County, WY (ISD) |
| Carbon County, MT (ISD) |
| Carbon County, UT (ISD) |
| Carbon County, PA (ISD) |
| Carbon County School District #1, WY (District) |
