| Atlantic Comm School District, IA (District) |
| Atlantic County Schools, NJ (ISD) |
| Atlantic County Special Services School District, NJ (District) |
| Atlantic County Vocational School District, NJ (District) |
| Atlantic Highlands School District, NJ (District) |
| Atlantis Charter (District), MA (District) |
| Atmosphere Academy Public Charter, NY (PSA) |
| Atoka, OK (District) |
| Atoka County, OK (ISD) |
| Atoka-Coal Counties Ilc, OK (District) |
| Attala Co School Dist, MS (District) |
| Attala County, MS (ISD) |
| Attalla City, AL (District) |
| Attica, KS (District) |
| Attica Central School District, NY (District) |
