| Colonial Heights, VA (District) |
| Colonial School District, DE (District) |
| Colonial SD, PA (District) |
| Colorado City Unified District, AZ (District) |
| Colorado County, TX (ISD) |
| Colorado Department of Education, CO (State) |
| Colorado ISD, TX (District) |
| Colorado River Union High School District, AZ (District) |
| Colorado School For The Deaf And Blind, CO (District) |
| Colorado Springs 11, CO (District) |
| Colquitt County, GA (ISD) |
| Colquitt County, GA (District) |
| Colstrip Elem, MT (District) |
| Colstrip H S, MT (District) |
| Colton Joint Unified, CA (District) |
