| Constellation Schools: Stockyard Community Middle, OH (PSA) |
| Constellation Schools: Westpark Community Elementary, OH (PSA) |
| Constellation Schools: Westpark Community Middle, OH (PSA) |
| Constellation Schools: Westside Community School of the Arts, OH (PSA) |
| Construction Careers Center, MO (District) |
| Continental Elementary District, AZ (District) |
| Continental Local School District, OH (District) |
| Contoocook Valley Sau Office, NH (District) |
| Contoocook Valley School District, NH (District) |
| Contra Costa County Office of Education, CA (District) |
| 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) |
