| Carbon Cliff-Barstow SD 36, IL (District) |
| Carbon County, WY (ISD) |
| Carbon County, MT (ISD) |
| Carbon County, UT (ISD) |
| Carbon County, PA (ISD) |
| Carbon County School District #1, WY (District) |
| Carbon County School District #2, WY (District) |
| Carbon District, UT (District) |
| Carbonado School District, WA (District) |
| Carbondale Area SD, PA (District) |
| Carbondale CHSD 165, IL (District) |
| Carbondale ESD 95, IL (District) |
| Carden Of Tucson Inc., AZ (District) |
| Cardiff Elementary, CA (District) |
| Cardinal Academy Incorporated, ID (PSA) |
