| Cleora, OK (District) |
| Clermont County Educational Service Center, OH (ISD) |
| Clermont Northeastern Local School District, OH (District) |
| Cleveland, OK (District) |
| Cleveland, TN (District) |
| Cleveland Academy for Scholarship Technology and Leadership, OH (PSA) |
| Cleveland Arts and Social Sciences Academy, OH (PSA) |
| Cleveland College Preparatory School, OH (PSA) |
| Cleveland County, AR (ISD) |
| Cleveland County, NC (ISD) |
| Cleveland County, OK (ISD) |
| Cleveland County Community In-Schools, NC (District) |
| Cleveland County School Dist., AR (District) |
| Cleveland County Schools, NC (District) |
| Cleveland Elem, MT (District) |
