| Contra Costa County ROP, CA (District) |
| Contra Costa ESA, CA (ISD) |
| Converse County, WY (ISD) |
| Converse County School District #1, WY (District) |
| Converse County School District #2, WY (District) |
| Conway, MA (District) |
| Conway County, AR (ISD) |
| Conway Sau Office, NH (District) |
| Conway School District, NH (District) |
| Conway School District, WA (District) |
| Conway School District, AR (District) |
| Conway Springs, KS (District) |
| Cook County, MN (ISD) |
| Cook County, GA (ISD) |
| Cook County, GA (District) |
