| Browning Elementary & South Lancaster Academy | 1.5 |
Regular elementary or secondary | Pre-KG-12 | 238 | 15.0 | Seventh-Day Adventist |
| Amego | 4.4 |
Special program emphasis | Ungraded-Ungraded | 21 | 3.8 | Nonsectarian |
| Grace Baptist Christian Academy | 7.5 |
Regular elementary or secondary | Pre-KG-12 | 119 | 7.7 | Baptist |
| New Testament Christian School | 9.1 |
Regular elementary or secondary | Pre-KG-12 | 194 | 11.7 | Baptist |
| Mendon Mennonite School | 10.5 |
Regular elementary or secondary | 1-10 | 20 | 10.0 | Mennonite |
| Victory Christian Academy | 10.9 |
Regular elementary or secondary | KG-12 | 14 | 4.7 | Assembly of God |
| League School Of Greater Boston | 11.8 |
Special education | KG-12 | 83 | 5.2 | Nonsectarian |
| Montrose School | 12.3 |
Regular elementary or secondary | 6-12 | 138 | 3.7 | Roman Catholic |
| Evergreen Center | 13.4 |
Special education | Ungraded-Ungraded | 89 | 6.8 | Nonsectarian |
| The Judge Rotenberg Center | 16.0 |
Special education | Ungraded-Ungraded | 145 | 6.6 | Nonsectarian |
| New England Baptist Academy | 16.5 |
Regular elementary or secondary | Pre-KG-12 | 138 | 11.6 | Baptist |
| May Institute For Neurorehabilitation | 17.0 |
Special education | 1-12 | 48 | 1.6 | Nonsectarian |
| Metro South Academy | 17.8 |
Special education | 6-12 | 14 | 4.7 | Nonsectarian |
| Whitinsville Christian School | 18.0 |
Regular elementary or secondary | Pre-KG-12 | 551 | 13.1 | Calvinist |
| Boston Higashi School | 18.5 |
Special education | 3-12 | 80 | 1.6 | Nonsectarian |
| New England Christian Academy | 19.1 |
Regular elementary or secondary | Pre-KG-12 | 186 | 10.6 | Christian (no specific denomination) |
| May Center For Child Development | 19.4 |
Special education | Pre-KG-12 | 100 | 0.8 | Nonsectarian |
| Meadowridge Behavioral Health Center | 19.5 |
Special education | 6-12 | 27 | 4.5 | Nonsectarian |
| The Institute For Developmenta | 19.6 |
Special education | Ungraded-Ungraded | 46 | 5.8 | Nonsectarian |
| Dana Hall School | 19.6 |
Regular elementary or secondary | 6-12 | 485 | 9.2 | Nonsectarian |
| Boston Trinity Academy | 20.0 |
Regular elementary or secondary | 6-12 | 193 | 9.7 | Christian (no specific denomination) |
| New Beginnings Academy | 20.1 |
Regular elementary or secondary | Pre-KG-12 | 65 | 9.3 | Christian (no specific denomination) |
| Touchstone Community School | 20.2 |
Alternative/other | Ungraded-Ungraded | 129 | 10.4 | Nonsectarian |
| Crossroad Center For Children | 21.0 |
Special education | Ungraded-Ungraded | 40 | 5.7 | Nonsectarian |
| The Learning Center For The Deaf | 21.1 |
Special education | Pre-KG-12 | 184 | 4.3 | Nonsectarian |
| Brandon Residential Treatment | 21.4 |
Special education | 1-11 | 74 | 5.9 | Nonsectarian |
| Thayer Academy | 21.6 |
Regular elementary or secondary | 6-12 | 672 | 7.7 | Nonsectarian |
| The Rivers School | 21.6 |
Regular elementary or secondary | 6-12 | 433 | 7.5 | Nonsectarian |
| New England Center For Children | 21.6 |
Special education | Pre-KG-12 | 191 | 2.3 | Nonsectarian |
| St Vincent School | 21.7 |
Special education | KG-12 | 53 | 10.6 | Roman Catholic |
| Cardinal Cushing Centers | 22.5 |
Special education | Ungraded-Ungraded | 39 | 3.9 | Roman Catholic |
| Calvary Chapel Academy | 22.6 |
Regular elementary or secondary | Pre-KG-10 | 96 | 6.0 | Christian (no specific denomination) |
| Italian Home For Children | 22.7 |
Special education | Ungraded-Ungraded | 49 | 5.1 | Nonsectarian |
| Reed Academy | 22.8 |
Special education | Ungraded-Ungraded | 20 | 3.4 | Nonsectarian |
| Sudbury Valley School | 22.8 |
Special program emphasis | Ungraded-Ungraded | 165 | 16.7 | Nonsectarian |
| Beaver Country Day School | 22.9 |
Regular elementary or secondary | 6-12 | 419 | 8.6 | Nonsectarian |
| Dexter School | 22.9 |
Regular elementary or secondary | Pre-KG-12 | 417 | 5.2 | Nonsectarian |
| Southfield School | 22.9 |
Regular elementary or secondary | Pre-KG-12 | 370 | 4.8 | Nonsectarian |
| Al-noor Academy High | 23.0 |
Regular elementary or secondary | 6-12 | 69 | 8.3 | Islamic |
| Fay School | 23.0 |
Regular elementary or secondary | 1-9 | 379 | 6.6 | Nonsectarian |
| British School Of Boston | 23.0 |
Regular elementary or secondary | Pre-KG-11 | 235 | 7.8 | Nonsectarian |
| East Gate Christian Academy | 23.2 |
Regular elementary or secondary | Pre-KG-12 | 61 | 7.6 | Christian (no specific denomination) |
| South Shore Christian Academy | 23.4 |
Regular elementary or secondary | Pre-KG-12 | 216 | 11.4 | Christian (no specific denomination) |
| Brimmer And May School | 23.5 |
Regular elementary or secondary | Pre-KG-12 | 378 | 8.7 | Nonsectarian |
| The Woodward School | 23.6 |
Regular elementary or secondary | 6-12 | 145 | 8.2 | Nonsectarian |
| Learning Prep School | 23.7 |
Special education | Ungraded-Ungraded | 403 | 2.8 | Nonsectarian |
| Granite Academy | 23.8 |
Special education | 6-12 | 52 | 4.0 | Nonsectarian |
| Clearway School | 23.9 |
Special education | 6-12 | 25 | 2.8 | Nonsectarian |
| Newton Country Day School | 24.1 |
Regular elementary or secondary | 5-12 | 394 | 5.6 | Roman Catholic |
| Maimonides School | 24.3 |
Regular elementary or secondary | KG-12 | 602 | 9.5 | Jewish |
| Compass Inc | 24.5 |
Special education | 5-12 | 29 | 3.2 | Nonsectarian |
| Fessenden School | 24.7 |
Regular elementary or secondary | KG-9 | 482 | 7.3 | Nonsectarian |
| The Gifford School | 24.8 |
Special education | 4-12 | 106 | 4.8 | Nonsectarian |
| Manville School | 24.9 |
Special education | 1-10 | 82 | 4.9 | Nonsectarian |
