| Arapahoe Public Schools, NE (District) |
| Arbon Elementary District, ID (District) |
| Arbor Academy, MI (PSA) |
| Arbor Community School Agency, WI (PSA) |
| Arbor Park SD 145, IL (District) |
| Arbor Preparatory High School, MI (PSA) |
| Arcadia Charter School, MN (District) |
| Arcadia Local School District, OH (District) |
| Arcadia Public Schools, NE (District) |
| Arcadia School District, WI (District) |
| Arcadia Unified, CA (District) |
| Arcadia Valley R-Ii, MO (District) |
| Arcanum-Butler Local School District, OH (District) |
| Arcata Elementary, CA (District) |
| Archbold Area Local School District, OH (District) |
