| Jacksonville High | 1,441 | regular | high |
| Jacksonville High School | 756 | regular | other |
| JACKSONVILLE HIGH SCHOOL | 1,208 | regular | high |
| Jacksonville High School | 890 | regular | high |
| JACKSONVILLE LIGHTHOUSE ELEMENTARY ACADEMY | 210 | regular | elementary |
| JACKSONVILLE MIDDLE | 629 | regular | middle |
| JACKSONVILLE MIDDLE SCHOOL | 926 | regular | middle |
| Jacksonville Middle School | 680 | regular | middle |
| Jacksonwald El Sch | 370 | regular | elementary |
| Jacob Coy Middle School | 1,058 | regular | middle |
| Jacob Elementary | 519 | regular | other |
| Jacob G. Smith Elementary School | 466 | regular | other |
| Jacob Hiatt Magnet | 367 | regular | other |
| Jacob L. Adams Elementary | 453 | regular | other |
| Jacob Wiens Elementary | 580 | regular | elementary |
| Jacob Wismer Elementary School | 592 | regular | elementary |
| JACOB'S WELL EL | 553 | regular | elementary |
| Jacobs Fork Middle | 482 | regular | middle |
| Jacobs Road Elementary | 716 | regular | other |
| Jacobsen High School | 24 | alternative | other |
| Jacobsen Middle | 925 | regular | middle |
| Jacobson Walter ES | 494 | regular | other |
| Jacobsville Elementary | 474 | regular | other |
| Jacoby Creek | 455 | regular | elementary |
| Jacox Elementary | 596 | regular | other |
| JACQUELINE KENNEDY-ONASSIS HIGH SCHOOL | 316 | regular | high |
| Jacqueline M. Walsh School | 173 | regular | high |
| Jacques Memorial Elementary School | 276 | regular | elementary |
| Jaffrey Grade School | 250 | regular | other |
| Jaffrey-Rindge Middle School | 241 | regular | middle |
| Jahn Elem School | 360 | regular | other |
| Jaime Escalante Elementary | 453 | regular | elementary |
| JAIME ESCALANTE MIDDLE | 554 | regular | middle |
| Jake Drost School for Exceptional Children | 19 | special-ed | other |
| JAKE SILBERNAGEL EL | 509 | regular | other |
| JAL ELEMENTARY | 290 | regular | other |
| JAL HIGH | 158 | regular | high |
| JAL JR HIGH | 119 | regular | middle |
| Jalen Rose Leadership Academy | 420 | regular | high |
| Jamacha Elementary | 415 | regular | elementary |
| Jamaica Child Development Center | 106 | regular | other |
| JAMAICA CHILDREN'S SCHOOL | 257 | regular | elementary |
| Jamaica Elementary School | 424 | regular | elementary |
| JAMAICA GATEWAY TO THE SCIENCES | 531 | regular | high |
| Jamaica Village School | 9 | regular | other |
| James & Rosemary Phalen Leadership Academy Middle School | 296 | regular | middle |
| James A Allison Elementary Sch 3 | 249 | regular | elementary |
| James A Caywood Elementary School | 582 | regular | other |
| James A Cotten Intermediate School | 542 | regular | elementary |
| JAMES A DEVER SCHOOL | 437 | regular | elementary |