| Arlington Sd 3, OR (District) |
| Armada Area Schools, MI (District) |
| Armona Union Elementary, CA (District) |
| Armorel School District, AR (District) |
| Armour School District, SD (District) |
| Armstrong County, TX (ISD) |
| Armstrong County, PA (ISD) |
| Armstrong SD, PA (District) |
| Armstrong Twp HSD 225, IL (District) |
| Armstrong-Ellis Cons SD 61, IL (District) |
| Arnett, OK (District) |
| Arnold Public Schools, NE (District) |
| Arock Sd 81, OR (District) |
| Aromas - San Juan Unified, CA (District) |
| Aroostook County, ME (ISD) |
