| Union Gap School District, WA (District) |
| Union Grove ISD, TX (District) |
| Union Grove J1 School District, WI (District) |
| Union Grove UHS School District, WI (District) |
| Union Hill Elementary, CA (District) |
| Union Hill ISD, TX (District) |
| Union Local School District, OH (District) |
| Union Parish, LA (ISD) |
| Union Parish, LA (District) |
| Union Public School Dist, MS (District) |
| Union R-Xi, MO (District) |
| Union Ridge SD 86, IL (District) |
| Union School Corporation, IN (District) |
| Union School District, CT (District) |
| Union SD, PA (District) |
