| Union County, IA (ISD) |
| Union County, GA (ISD) |
| Union County, SC (ISD) |
| Union County, GA (District) |
| Union County, FL (ISD) |
| Union County, IN (ISD) |
| Union County, TN (ISD) |
| Union County, OR (ISD) |
| Union County Educational Services Commission, NJ (District) |
| Union County Public Schools, NC (District) |
| Union County Schools, KY (District) |
| Union County Schools, NJ (ISD) |
| Union County TEAMS Charter School, NJ (District) |
| Union County Vocational-Technical School District, NJ (District) |
| Union Elementary, CA (District) |
