| Andrew J Brown Academy, IN (District) |
| Andrew Young Early College Academy, MI (PSA) |
| Andrews County, TX (ISD) |
| Andrews ISD, TX (District) |
| Androscoggin County, ME (ISD) |
| Angelina County, TX (ISD) |
| Angleton ISD, TX (District) |
| Animas Public Schools, NM (District) |
| Ankeny Comm School District, IA (District) |
| Ann Arbor Learning Community, MI (PSA) |
| Ann Arbor Public Schools, MI (District) |
| Ann Jerkins-Harris Academy of Excellence, OH (PSA) |
| Anna CCSD 37, IL (District) |
| Anna ISD, TX (District) |
| Anna Jonesboro CHSD 81, IL (District) |
