| Cornell CCSD 426, IL (District) |
| Cornell School District, WI (District) |
| Cornell SD, PA (District) |
| Cornerstone Academy Community School, OH (PSA) |
| Cornerstone Charter School Inc, AZ (PSA) |
| Cornerstone Health and Technology School, MI (PSA) |
| Cornerstone Jefferson-Douglass Academy, MI (PSA) |
| Cornerstone Montessori Elementary, MN (District) |
| Corning City School District, NY (District) |
| Corning Comm School District, IA (District) |
| Corning School District, AR (District) |
| Corning Union Elementary, CA (District) |
| Corning Union High, CA (District) |
| Cornish School District, NH (District) |
| Cornville Regional Charter School, ME (District) |
