| Carter, MT (District) |
| Carter Community Charter, NC (District) |
| Carter County, KY (Phantom) |
| Carter County, TN (District) |
| Carter County, OK (ISD) |
| Carter County, MT (ISD) |
| Carter County, MO (ISD) |
| Carter County, TN (ISD) |
| Carter County H S, MT (District) |
| Carter County Schools, KY (District) |
| Carter Elem, MT (District) |
| Carteret County, NC (ISD) |
| Carteret County Public Schools, NC (District) |
| Carteret Public Schools, NJ (District) |
| Cartersville City, GA (District) |
