| Athens Sr High School | 299 | regular | high |
| Athens-Chilesburg Elementary | 620 | regular | elementary |
| ATHERTON EL | 474 | regular | other |
| ATHERTON EL | 450 | regular | other |
| Atherton Elementary School | 267 | regular | elementary |
| Atherton High | 1,466 | regular | high |
| Atherton Hough | 256 | regular | elementary |
| Atherton Jr Sr High School | 323 | regular | other |
| Atherton Vern Van Y Educational Center | 48 | alternative | other |
| Atherwood Elementary | 456 | regular | elementary |
| Athey Creek Middle School | 470 | regular | middle |
| Athletic Training and Physical Therapy | 62 | vocational | high |
| Athlos Academy of Jefferson Parish | 1,012 | regular | elementary |
| Athlos Academy of Saint Cloud | 260 | regular | elementary |
| Athlos Academy of Utah | 458 | regular | other |
| Athlos Leadership Academy | 807 | regular | other |
| Athol Community Elementary School | 589 | regular | other |
| ATHOL ELEMENTARY SCHOOL | 287 | regular | other |
| Athol High | 417 | regular | high |
| Athol-Royalston Middle School | 446 | regular | elementary |
| Atholton Elementary | 516 | regular | other |
| Atholton High | 1,540 | regular | high |
| Atkins Academic & Tech High | 1,187 | regular | high |
| Atkins Elementary | 168 | regular | other |
| ATKINS ELEMENTARY SCHOOL | 370 | regular | other |
| Atkins Elementary School | 394 | regular | other |
| ATKINS HIGH SCHOOL | 317 | regular | high |
| ATKINS MIDDLE | 433 | regular | middle |
| ATKINS MIDDLE SCHOOL | 264 | regular | elementary |
| Atkins Technology Elementary School | 189 | regular | other |
| Atkinson | 274 | regular | elementary |
| Atkinson Academy | 462 | regular | elementary |
| Atkinson Academy | 364 | regular | other |
| Atkinson County High School | 447 | regular | high |
| Atkinson County Middle School | 336 | regular | middle |
| ATKINSON EL | 454 | regular | other |
| Atkinson Elementary | 288 | regular | other |
| Atkinson Elementary School | 276 | regular | elementary |
| Atkinson Elementary School | 398 | regular | other |
| Atkinson Elementary School | 366 | regular | other |
| ATKINSON ELEMENTARY SCHOOL | 189 | regular | other |
| Atkinson Elementary School | 318 | regular | other |
| Atkinson Elementary School | 372 | regular | elementary |
| Atlanta Area School for the Deaf | 110 | special-ed | other |
| Atlanta Classical Academy | 697 | regular | other |
| Atlanta Community Schools | 247 | regular | other |
| ATLANTA EL | 447 | regular | elementary |
| ATLANTA ELEM. | 112 | regular | elementary |
| ATLANTA H S | 511 | regular | high |
| Atlanta Heights Charter School | 663 | regular | elementary |