| Grace Baptist Christian Academy | 5.2 |
Regular elementary or secondary | Pre-KG-12 | 119 | 7.7 | Baptist |
| Amego | 5.9 |
Special program emphasis | Ungraded-Ungraded | 21 | 3.8 | Nonsectarian |
| Hill Crest Academy | 9.1 |
Alternative/other | Ungraded-Ungraded | 13 | 5.0 | Nonsectarian |
| Browning Elementary & South Lancaster Academy | 9.9 |
Regular elementary or secondary | Pre-KG-12 | 238 | 15.0 | Seventh-Day Adventist |
| New England Baptist Academy | 10.4 |
Regular elementary or secondary | Pre-KG-12 | 138 | 11.6 | Baptist |
| The Institute For Developmenta | 11.4 |
Special education | Ungraded-Ungraded | 46 | 5.8 | Nonsectarian |
| Metro South Academy | 11.8 |
Special education | 6-12 | 14 | 4.7 | Nonsectarian |
| May Institute For Neurorehabilitation | 11.9 |
Special education | 1-12 | 48 | 1.6 | Nonsectarian |
| New England Christian Academy | 13.0 |
Regular elementary or secondary | Pre-KG-12 | 186 | 10.6 | Christian (no specific denomination) |
| Meadowridge Behavioral Health Center | 13.6 |
Special education | 6-12 | 27 | 4.5 | Nonsectarian |
| Victory Christian Academy | 13.6 |
Regular elementary or secondary | KG-12 | 14 | 4.7 | Assembly of God |
| League School Of Greater Boston | 14.5 |
Special education | KG-12 | 83 | 5.2 | Nonsectarian |
| St Vincent School | 14.8 |
Special education | KG-12 | 53 | 10.6 | Roman Catholic |
| The Judge Rotenberg Center | 16.3 |
Special education | Ungraded-Ungraded | 145 | 6.6 | Nonsectarian |
| East Gate Christian Academy | 17.4 |
Regular elementary or secondary | Pre-KG-12 | 61 | 7.6 | Christian (no specific denomination) |
| Boston Higashi School | 17.6 |
Special education | 3-12 | 80 | 1.6 | Nonsectarian |
| Montrose School | 18.0 |
Regular elementary or secondary | 6-12 | 138 | 3.7 | Roman Catholic |
| Calvary Chapel Academy | 18.1 |
Regular elementary or secondary | Pre-KG-10 | 96 | 6.0 | Christian (no specific denomination) |
| May Center For Child Development | 18.8 |
Special education | Pre-KG-12 | 100 | 0.8 | Nonsectarian |
| Mendon Mennonite School | 19.6 |
Regular elementary or secondary | 1-10 | 20 | 10.0 | Mennonite |
| Early Bird Academy Inc | 19.6 |
Regular elementary or secondary | Pre-KG-10 | 107 | 26.8 | Nonsectarian |
| Thayer Academy | 20.2 |
Regular elementary or secondary | 6-12 | 672 | 7.7 | Nonsectarian |
| Cardinal Cushing Centers | 21.5 |
Special education | Ungraded-Ungraded | 39 | 3.9 | Roman Catholic |
| South Shore Christian Academy | 21.5 |
Regular elementary or secondary | Pre-KG-12 | 216 | 11.4 | Christian (no specific denomination) |
| The Master's Academy | 21.5 |
Regular elementary or secondary | KG-12 | 56 | 4.4 | Christian (no specific denomination) |
| New Beginnings Academy | 21.7 |
Regular elementary or secondary | Pre-KG-12 | 65 | 9.3 | Christian (no specific denomination) |
| Cardinal Cushing Centers | 21.7 |
Special education | Ungraded-Ungraded | 119 | 6.3 | Roman Catholic |
| Boston Trinity Academy | 21.8 |
Regular elementary or secondary | 6-12 | 193 | 9.7 | Christian (no specific denomination) |
| Evergreen Center | 22.1 |
Special education | Ungraded-Ungraded | 89 | 6.8 | Nonsectarian |
| Granite Academy | 22.5 |
Special education | 6-12 | 52 | 4.0 | Nonsectarian |
| Al-noor Academy High | 22.6 |
Regular elementary or secondary | 6-12 | 69 | 8.3 | Islamic |
| The Woodward School | 23.1 |
Regular elementary or secondary | 6-12 | 145 | 8.2 | Nonsectarian |
| Nazarene Christian Academy | 23.1 |
Regular elementary or secondary | Pre-KG-12 | 150 | 6.7 | Church of the Nazarene |
| Schwartz Center For Children | 24.5 |
Special education | Pre-KG-11 | 41 | 6.8 | Nonsectarian |
| Dana Hall School | 24.6 |
Regular elementary or secondary | 6-12 | 485 | 9.2 | Nonsectarian |
| Italian Home For Children | 24.8 |
Special education | Ungraded-Ungraded | 49 | 5.1 | Nonsectarian |
