| Reed Academy | 2.1 |
Special education | Ungraded-Ungraded | 20 | 3.4 | Nonsectarian |
| Sudbury Valley School | 2.1 |
Special program emphasis | Ungraded-Ungraded | 165 | 16.7 | Nonsectarian |
| New England Center For Children | 3.6 |
Special education | Pre-KG-12 | 191 | 2.3 | Nonsectarian |
| Crossroad Center For Children | 4.7 |
Special education | Ungraded-Ungraded | 40 | 5.7 | Nonsectarian |
| Brandon Residential Treatment | 4.8 |
Special education | 1-11 | 74 | 5.9 | Nonsectarian |
| Fay School | 5.3 |
Regular elementary or secondary | 1-9 | 379 | 6.6 | Nonsectarian |
| The Rivers School | 5.5 |
Regular elementary or secondary | 6-12 | 433 | 7.5 | Nonsectarian |
| Dana Hall School | 7.4 |
Regular elementary or secondary | 6-12 | 485 | 9.2 | Nonsectarian |
| Willow Hill School | 7.4 |
Special education | 6-12 | 60 | 3.4 | Nonsectarian |
| The Gifford School | 8.9 |
Special education | 4-12 | 106 | 4.8 | Nonsectarian |
| Hillside School | 9.5 |
Regular elementary or secondary | 5-9 | 139 | 6.0 | Nonsectarian |
| Montrose School | 10.4 |
Regular elementary or secondary | 6-12 | 138 | 3.7 | Roman Catholic |
| Learning Prep School | 10.4 |
Special education | Ungraded-Ungraded | 403 | 2.8 | Nonsectarian |
| Evergreen Center | 10.8 |
Special education | Ungraded-Ungraded | 89 | 6.8 | Nonsectarian |
| Clearway School | 10.9 |
Special education | 6-12 | 25 | 2.8 | Nonsectarian |
| Fessenden School | 11.2 |
Regular elementary or secondary | KG-9 | 482 | 7.3 | Nonsectarian |
| Community Therapeutic Day School Inc | 12.1 |
Special education | Ungraded-Ungraded | 30 | 2.6 | Nonsectarian |
| The Fenn School | 12.3 |
Regular elementary or secondary | 4-9 | 304 | 8.2 | Nonsectarian |
| Newton Country Day School | 12.5 |
Regular elementary or secondary | 5-12 | 394 | 5.6 | Roman Catholic |
| Cotting School | 12.6 |
Special education | Ungraded-Ungraded | 119 | 4.8 | Nonsectarian |
| Protestant Guild Learning Center | 12.9 |
Special education | 5-12 | 38 | 2.3 | Nonsectarian |
| Protestant Guild For Human Services | 12.9 |
Special education | Ungraded-Ungraded | 60 | 6.1 | Nonsectarian |
| Beaver Country Day School | 13.7 |
Regular elementary or secondary | 6-12 | 419 | 8.6 | Nonsectarian |
| Brimmer And May School | 13.8 |
Regular elementary or secondary | Pre-KG-12 | 378 | 8.7 | Nonsectarian |
| Touchstone Community School | 13.9 |
Alternative/other | Ungraded-Ungraded | 129 | 10.4 | Nonsectarian |
| Germaine Lawrence | 14.8 |
Alternative/other | 6-12 | 50 | 4.5 | Nonsectarian |
| Kennedy Day School Program | 14.9 |
Special education | Ungraded-Ungraded | 74 | 3.7 | Nonsectarian |
| Rfk Lancaster School | 15.0 |
Special education | 4-12 | 36 | 1.1 | Nonsectarian |
| Dexter School | 15.1 |
Regular elementary or secondary | Pre-KG-12 | 417 | 5.2 | Nonsectarian |
| Lexington Christian Academy | 15.1 |
Regular elementary or secondary | 6-12 | 345 | 9.9 | Christian (no specific denomination) |
| Southfield School | 15.1 |
Regular elementary or secondary | Pre-KG-12 | 370 | 4.8 | Nonsectarian |
| Mendon Mennonite School | 15.2 |
Regular elementary or secondary | 1-10 | 20 | 10.0 | Mennonite |
| British School Of Boston | 15.3 |
Regular elementary or secondary | Pre-KG-11 | 235 | 7.8 | Nonsectarian |
| Maimonides School | 15.4 |
Regular elementary or secondary | KG-12 | 602 | 9.5 | Jewish |
| Italian Home For Children | 15.6 |
Special education | Ungraded-Ungraded | 49 | 5.1 | Nonsectarian |
| League School Of Greater Boston | 15.6 |
Special education | KG-12 | 83 | 5.2 | Nonsectarian |
| Boston Trinity Academy | 15.8 |
Regular elementary or secondary | 6-12 | 193 | 9.7 | Christian (no specific denomination) |
| Buckingham Browne & Nichols School | 15.8 |
Regular elementary or secondary | Pre-KG-12 | 938 | 7.2 | Nonsectarian |
| Victory Christian Academy | 16.1 |
Regular elementary or secondary | KG-12 | 14 | 4.7 | Assembly of God |
| New Beginnings Academy | 16.2 |
Regular elementary or secondary | Pre-KG-12 | 65 | 9.3 | Christian (no specific denomination) |
| Meridian Academy | 16.3 |
Regular elementary or secondary | 6-9 | 27 | 6.6 | Nonsectarian |
| South Lancaster Academy And Browning Elementary | 16.3 |
Regular elementary or secondary | Pre-KG-12 | 237 | 15.0 | Seventh-Day Adventist |
| Dearborn Academy | 16.3 |
Special education | 3-12 | 110 | 1.4 | Nonsectarian |
| Manville School | 16.5 |
Special education | 1-10 | 82 | 4.9 | Nonsectarian |
| International School Of Boston | 16.6 |
Regular elementary or secondary | Pre-KG-12 | 452 | 4.1 | Nonsectarian |
| Compass Inc | 16.6 |
Special education | 5-12 | 29 | 3.2 | Nonsectarian |
| Winsor School | 16.7 |
Regular elementary or secondary | 5-12 | 433 | 6.4 | Nonsectarian |
| Kids Are People Elementary School | 17.3 |
Alternative/other | Ungraded-Ungraded | 96 | 10.7 | Nonsectarian |
| Whitinsville Christian School | 18.0 |
Regular elementary or secondary | Pre-KG-12 | 551 | 13.1 | Calvinist |
| New England Christian Academy | 18.2 |
Regular elementary or secondary | KG-10 | 15 | 6.2 | Christian (no specific denomination) |
| Open Bible Academy | 18.3 |
Regular elementary or secondary | Pre-KG-12 | 71 | 6.2 | Christian (no specific denomination) |
| The Judge Rotenberg Center | 18.5 |
Special education | Ungraded-Ungraded | 145 | 6.6 | Nonsectarian |
| Seven Hills Academy | 18.9 |
Special education | 4-12 | 60 | 14.6 | Nonsectarian |
| Worcester Academy | 18.9 |
Regular elementary or secondary | 6-12 | 631 | 8.9 | Nonsectarian |
| Browning Elementary & South Lancaster Academy | 19.7 |
Regular elementary or secondary | Pre-KG-12 | 238 | 15.0 | Seventh-Day Adventist |
| Bancroft School | 19.7 |
Regular elementary or secondary | KG-12 | 562 | 7.7 | Nonsectarian |
| Umass/boston Early Learning Center | 19.8 |
Early childhood program/child care center | Pre-KG-Pre-KG | 44 | 23.2 | Nonsectarian |
| Nashoba Learning Group | 20.0 |
Special education | Pre-KG-11 | 40 | 0.8 | Nonsectarian |
| Mercy Centre | 20.3 |
Special education | Ungraded-Ungraded | 24 | 6.0 | Roman Catholic |
| Yeshiva Achei Tmimim Academy | 20.3 |
Regular elementary or secondary | Pre-KG-12 | 86 | 4.2 | Jewish |
| Edgewood Elementary School/gba | 20.4 |
Regular elementary or secondary | Pre-KG-12 | 94 | 8.9 | Seventh-Day Adventist |
| Merrimack Schools | 20.4 |
Alternative/other | 5-12 | 55 | 2.5 | Nonsectarian |
| G Stanley Hall School | 20.5 |
Special education | 3-12 | 43 | 6.1 | Nonsectarian |
| Sterling Nursery School | 20.6 |
Special education | Pre-KG-Pre-KG | 3 | 0.8 | Nonsectarian |
| May Center For Child Development | 20.8 |
Special education | Pre-KG-12 | 100 | 0.8 | Nonsectarian |
| Boston Higashi School | 21.1 |
Special education | 3-12 | 80 | 1.6 | Nonsectarian |
| Hill Crest Academy | 21.1 |
Alternative/other | Ungraded-Ungraded | 13 | 5.0 | Nonsectarian |
| Kathleen Burns Preparatory School | 21.2 |
Special education | 5-12 | 36 | 5.1 | Nonsectarian |
| Al-noor Academy High | 21.3 |
Regular elementary or secondary | 6-12 | 69 | 8.3 | Islamic |
| Melrose Montessori School | 21.4 |
Montessori | Ungraded-Ungraded | 41 | 10.2 | Nonsectarian |
| The Woodward School | 22.0 |
Regular elementary or secondary | 6-12 | 145 | 8.2 | Nonsectarian |
| Amego | 22.4 |
Special program emphasis | Ungraded-Ungraded | 21 | 3.8 | Nonsectarian |
| Seven Hills At Groton | 22.5 |
Special education | 1-12 | 25 | 8.3 | Nonsectarian |
| Cardinal Cushing Centers | 22.5 |
Special education | Ungraded-Ungraded | 39 | 3.9 | Roman Catholic |
| Thayer Academy | 22.9 |
Regular elementary or secondary | 6-12 | 672 | 7.7 | Nonsectarian |
| Lighthouse School | 23.7 |
Special education | Pre-KG-12 | 220 | 6.7 | Nonsectarian |
| Archway Inc | 23.7 |
Special education | 5-12 | 13 | 4.5 | Nonsectarian |
| Granite Academy | 23.7 |
Special education | 6-12 | 52 | 4.0 | Nonsectarian |
| Oak Hill Christian School | 24.3 |
Regular elementary or secondary | Pre-KG-9 | 30 | 5.9 | Christian (no specific denomination) |
| Riverside School | 24.4 |
Special education | 2-12 | 34 | 4.9 | Nonsectarian |
| South Shore Christian Academy | 24.6 |
Regular elementary or secondary | Pre-KG-12 | 216 | 11.4 | Christian (no specific denomination) |
