| Adams County, MS (ISD) |
| Adams County, IN (ISD) |
| Adams County 14, CO (District) |
| Adams County Boces, CO (District) |
| Adams County Technical Institute, PA (District) |
| Adams County/Ohio Valley Local School District, OH (District) |
| Adams Township School District, MI (District) |
| Adams-Arap 28J Aurora, CO (District) |
| Adams-Arapahoe 28J, CO (District) |
| Adams-Cheshire, MA (District) |
| Adams-Friendship Area School District, WI (District) |
| Adams-Wells Special Services Coop, IN (District) |
| Addison Central School District, NY (District) |
| Addison Community Schools, MI (District) |
| Addison SD 4, IL (District) |
