| Calvary Christian School | 0.0 |
Regular elementary or secondary | Pre-KG-12 | 233 | 13.4 | Christian (no specific denomination) |
| Victory Baptist School | 7.1 |
Regular elementary or secondary | Pre-KG-12 | 75 | 9.4 | Baptist |
| Robert B Jolicoer School | 9.6 |
Special education | 3-12 | 154 | 9.6 | Nonsectarian |
| Center Of Optimum Learning | 9.8 |
Special education | Ungraded-Ungraded | 12 | 2.0 | Nonsectarian |
| Tabernacle Christian School | 10.4 |
Regular elementary or secondary | Pre-KG-12 | 117 | 7.8 | Baptist |
| Mount Zion Christian Schools | 10.5 |
Regular elementary or secondary | Pre-KG-12 | 152 | 8.9 | Christian (no specific denomination) |
| The Lighthouse Christian Academy | 11.6 |
Regular elementary or secondary | Pre-KG-12 | 52 | 5.0 | Christian (no specific denomination) |
| The Derryfield School | 13.5 |
Regular elementary or secondary | 6-12 | 383 | 9.2 | Nonsectarian |
| Nashua Christian Academy | 13.8 |
Regular elementary or secondary | KG-12 | 233 | 11.8 | Christian (no specific denomination) |
| Nashua Childrens Home | 13.9 |
Special education | Ungraded-Ungraded | 26 | 7.7 | Nonsectarian |
| South Merrimack Christian Academy | 15.9 |
Regular elementary or secondary | Pre-KG-12 | 210 | 10.6 | Baptist |
| Seacoast Learning Collaborative | 16.6 |
Special education | 2-12 | 52 | 6.5 | Nonsectarian |
| Kids' Inn Of Amherst | 17.2 |
Early childhood program/child care center | Ungraded-Ungraded | 50 | 6.2 | Nonsectarian |
| Pine Haven Boys Center | 18.2 |
Special education | Ungraded-Ungraded | 18 | 3.5 | Nonsectarian |
| Cornerstone Christian Academy | 20.2 |
Regular elementary or secondary | 2-9 | 16 | 3.5 | Baptist |
| Milford Christian Academy | 20.7 |
Regular elementary or secondary | 1-12 | 39 | 9.1 | Christian (no specific denomination) |
| Learning Skills Academy | 24.6 |
Special education | 5-12 | 19 | 2.4 | Nonsectarian |
| Concord Christian School | 24.7 |
Regular elementary or secondary | Pre-KG-10 | 180 | 7.1 | Christian (no specific denomination) |
| Trinity Christian School | 24.7 |
Regular elementary or secondary | KG-12 | 232 | 12.7 | Christian (no specific denomination) |
