| Archuleta County 50 Jt, CO (District) |
| Archway Classical Academy Chandler, AZ (District) |
| Archway Classical Academy North Phoenix, AZ (District) |
| Archway Classical Academy Scottsdale, AZ (District) |
| Archway Classical Academy Trivium, AZ (District) |
| Archway Classical Academy Veritas, AZ (District) |
| Arcohe Union Elementary, CA (District) |
| Arcola CUSD 306, IL (District) |
| Ardmore, OK (District) |
| Ardsley Union Free School District, NY (District) |
| Area 30 Career Center Edu Inter, IN (District) |
| Area Cooperative Educational, CT (District) |
| Area Special Education Cooperative, MN (District) |
| Area Vocational Technical Schools of Mercer County, NJ (District) |
| Arena Union Elementary, CA (District) |
