| Greater Portland Christian School | 0.0 |
Regular elementary or secondary | KG-12 | 141 | 8.9 | Christian (no specific denomination) |
| Waynflete School | 1.4 |
Regular elementary or secondary | Pre-KG-12 | 540 | 8.7 | Nonsectarian |
| Sonlight Christian School | 1.5 |
Special education | 3-12 | 7 | 7.0 | Roman Catholic |
| Aucocisco School | 2.2 |
Special education | 3-12 | 33 | 1.9 | Nonsectarian |
| Morrison Developmental Center | 4.6 |
Special education | KG-12 | 6 | 1.2 | Nonsectarian |
| Cornerstone Baptist Academy | 4.9 |
Alternative/other | 1-12 | 38 | 5.0 | Baptist |
| The School At Sweetser | 10.8 |
Special education | KG-12 | 99 | 6.6 | Nonsectarian |
| Thornton Academy | 11.5 |
Regular elementary or secondary | 6-12 | 1401 | 15.2 | Nonsectarian |
| North Yarmouth Academy | 12.8 |
Regular elementary or secondary | 6-12 | 330 | 13.5 | Nonsectarian |
| Nfi Buxton - Beacon House | 15.2 |
Special education | Ungraded-Ungraded | 6 | 3.8 | Nonsectarian |
| Living Waters Christian School | 15.5 |
Regular elementary or secondary | Pre-KG-12 | 45 | 4.5 | Pentecostal |
| Standish Baptist Academy | 15.7 |
Regular elementary or secondary | KG-12 | 55 | 7.9 | Baptist |
| Merriconeag Waldorf School | 17.1 |
Special program emphasis | Pre-KG-10 | 222 | 6.0 | Nonsectarian |
| Royal Academy | 17.7 |
Alternative/other | 1-12 | 139 | 27.8 | Nonsectarian |
| Pine Tree Academy | 18.3 |
Regular elementary or secondary | KG-12 | 119 | 9.5 | Seventh-Day Adventist |
| Windham Christian Academy | 18.5 |
Regular elementary or secondary | Pre-KG-12 | 88 | 7.9 | Assembly of God |
| Maine Classical School | 18.7 |
Special program emphasis | 5-10 | 26 | 4.0 | Christian (no specific denomination) |
| Mse/mhc-collaborative School | 19.0 |
Special education | 1-12 | 46 | 6.6 | Nonsectarian |
| Berean Christian Academy | 21.4 |
Regular elementary or secondary | 2-12 | 10 | 10.0 | Calvinist |
| Spurwink - Brunswick Staff Secure | 21.9 |
Special education | Ungraded-Ungraded | 17 | 5.9 | Nonsectarian |
