| Union County, GA (District) |
| Union County, FL (ISD) |
| Union County, IN (ISD) |
| Union County, TN (ISD) |
| Union County, OR (ISD) |
| Union County, IA (ISD) |
| Union County, NC (ISD) |
| Union County, TN (District) |
| Union County, AR (ISD) |
| Union County, MS (ISD) |
| Union County, KY (Phantom) |
| Union County Educational Services Commission, NJ (District) |
| Union County Public Schools, NC (District) |
| Union County Schools, KY (District) |
| Union County Schools, NJ (ISD) |
