| ACCESS CHARTER | 115 | special-ed | other |
| ACCESS County Community | 1,315 | alternative | other |
| ACCESS Juvenile Hall | 186 | alternative | other |
| ACCESS TO EDUCATION | 44 | special-ed | other |
| Accident Elementary | 221 | regular | other |
| ACCION ACADEMY | 185 | regular | middle |
| ACCLAIM Academy | 249 | regular | elementary |
| Accokeek Academy | 1,445 | regular | elementary |
| ACCOMPSETT ELEMENTARY SCHOOL | 523 | regular | elementary |
| ACCOMPSETT MIDDLE SCHOOL | 522 | regular | middle |
| ACE | 61 | alternative | high |
| ACE ACADEMY FOR SCHOLARS AT THE GERALDINE FERRARO CAMPUS | 573 | regular | other |
| ACE Alliance Charter Elementary | 225 | regular | elementary |
| ACE Amandla Charter School | 137 | regular | high |
| ACE Charter High | 313 | regular | high |
| ACE Empower Academy | 189 | regular | elementary |
| ACE Esperanza Middle | 205 | regular | elementary |
| ACE Inspire Academy | 205 | regular | elementary |
| ACE LEADERSHIP HIGH SCHOOL | 285 | regular | high |
| ACE Preparatory Academy | 131 | regular | elementary |
| ACEQUIA ELEMENTARY SCHOOL | 253 | regular | other |
| ACEQUIA MADRE ELEMENTARY | 154 | regular | elementary |
| Acero Chtr Roberto Clemente Elem | 461 | regular | elementary |
| Acero Chtr Sor Juana Ines de la | 432 | regular | other |
| Acero Chtr - Bartolome de las | 225 | regular | elementary |
| Acero Chtr - Carlos Fuentes Elem | 370 | regular | elementary |
| Acero Chtr - Esmera Santiago Cmps | 224 | regular | elementary |
| Acero Chtr - Octavio Paz Elem Sch | 98 | regular | elementary |
| Acero Chtr - Officer Marquez Elem | 508 | regular | elementary |
| Acero Chtr - Rufino Tamayo Elem | 266 | regular | elementary |
| Acero Chtr - Sandra Cisneros Elem | 326 | regular | elementary |
| Acero Chtr - SPC Zizumbo Elem | 532 | regular | elementary |
| Acero Chtr Netrk - Major Garcia | 666 | regular | high |
| Acero Chtr Network - Jovita Idar | 528 | regular | elementary |
| Acero Chtr Network - PFC Torress | 528 | regular | elementary |
| Acero Chtr Sch Netwrk- Victoria | 561 | regular | high |
| Acero Chtr-Brighton Park Elem Sch | 465 | regular | elementary |
| ACES Academy | 57 | alternative | other |
| ACES at Chase | 556 | regular | middle |
| ACES High School | 130 | alternative | high |
| ACES TECHNICAL HIGH SCHOOL | 165 | regular | elementary |
| ACGC ELEMENTARY GRADES 5 AND 6 | 134 | regular | elementary |
| ACHIEVABLE DREAM ACADEMY | 641 | regular | other |
| ACHIEVABLE DREAM MIDDLE/HIGH | 498 | regular | other |
| Achieve Academy | 537 | regular | elementary |
| Achieve Academy | 370 | regular | other |
| ACHIEVE ACADEMY | 133 | alternative | other |
| ACHIEVE ACADEMY AT MCMILLIAN | 260 | alternative | other |
| ACHIEVE ALTERNATIVE HIGH SCHOOL | 21 | special-ed | other |
| Achieve Career Preparatory Academy | 68 | regular | high |