| Adrian School District, MI (District) |
| Adrian Sd 61, OR (District) |
| Advance R-Iv, MO (District) |
| Advanced Math And Science Academy Charter (District), MA (District) |
| Advanced Technology Academy, MI (PSA) |
| Advantage Academy, TX (PSA) |
| Advantage Arts Academy, UT (PSA) |
| Aea 11 Heartland Aea, IA (District) |
| Aea 13 Green Hills Aea, IA (District) |
| Aea 267, IA (District) |
| Aeci Ii: Nyc Charter Hs, NY (PSA) |
| AECI II: NYC CHARTER HS-COMP ENGIN, NY (PSA) |
| AFESC, AR (ISD) |
| Affton 101, MO (District) |
| Afsa High School, MN (District) |
