| Academy of The Americas High School | 874 | regular | other |
| Academy of the Canyons | 385 | regular | high |
| ACADEMY OF THE CITY CHARTER SCHOOL | 695 | regular | elementary |
| Academy Of the Pacific Rim Charter Public School | 509 | regular | other |
| Academy of the Redwoods | 154 | alternative | high |
| Academy of Tucson Elementary School | 140 | regular | elementary |
| Academy of Tucson High School | 152 | regular | high |
| Academy of Tucson Middle School | 143 | regular | elementary |
| ACADEMY OF URBAN PLANNING AND ENGINEERING (THE) | 409 | regular | high |
| Academy of Warren | 817 | regular | other |
| Academy Of World Languages School | 548 | regular | other |
| Academy Park HS | 1,194 | regular | high |
| Academy Park School | 358 | regular | other |
| ACADEMY SCHOOL | 70 | alternative | other |
| Academy School | 418 | regular | other |
| Academy Street Elementary School | 509 | regular | other |
| ACADEMY STREET ELEMENTARY SCHOOL | 317 | regular | elementary |
| Academy West Alternative Education | 199 | alternative | other |
| Academy with Community Partners | 170 | alternative | high |
| Acadia Academy School | 250 | regular | other |
| ACADIA MIDDLE SCHOOL | 761 | regular | middle |
| Acadian Elementary | 270 | regular | other |
| Acadian Elementary School | 654 | regular | other |
| Acadian Middle School | 340 | regular | middle |
| Acadiana High School | 1,652 | regular | high |
| Acadiana Renaissance Charter Academy | 3,669 | regular | other |
| Acalanes Center for Independent Study | 61 | alternative | high |
| Acalanes High | 1,256 | regular | high |
| Accawmacke Elementary | 453 | regular | other |
| ACCE | 175 | alternative | other |
| ACCEL Academy | 154 | alternative | other |
| Accelerated | 729 | regular | elementary |
| Accelerated Achievement Academy | 151 | regular | elementary |
| Accelerated Advanced Learning Program | 60 | regular | elementary |
| Accelerated Charter Elementary | 526 | regular | elementary |
| Accelerated Charter High | 152 | regular | high |
| ACCELERATED INT CHARTER SCHOOL | 21 | regular | middle |
| ACCELERATED INTERDISCIPLINARY ACAD | 161 | regular | other |
| Accelerated Learning Academy | 126 | alternative | other |
| Accelerated Learning Center | 133 | alternative | high |
| ACCELERATION ACADEMIES LLC HOMESTEAD | 170 | alternative | other |
| ACCELERATION ACADEMIES-CENTRAL MIAMI | 375 | alternative | other |
| ACCELERATION ACADEMY | 418 | alternative | other |
| Acceleration Academy | 2,092 | alternative | high |
| Acceleration Academy | 450 | alternative | high |
| Acceleration Day and Evening Academy | 513 | regular | high |
| ACCELERATION EAST | 212 | alternative | other |
| Acceleration Preparatory Academy | 322 | regular | middle |
| ACCELERATION WEST | 246 | alternative | other |
| Access | 7 | alternative | high |