| Siena Academy | 2.5 |
Montessori | Ungraded-Ungraded | 130 | 56.5 | Roman Catholic |
| Temple Baptist School | 4.4 |
Regular elementary or secondary | Pre-KG-12 | 193 | 12.9 | Baptist |
| Flint Hill School | 5.6 |
Regular elementary or secondary | Pre-KG-12 | 1072 | 9.7 | Nonsectarian |
| Oak Valley Center | 6.5 |
Special education | 3-12 | 61 | 6.2 | Nonsectarian |
| The Kellar School Of Inova Kellar Center | 6.6 |
Alternative/other | 6-12 | 34 | 5.2 | Nonsectarian |
| The New School Of Northern Virginia | 6.8 |
Regular elementary or secondary | 4-12 | 145 | 4.7 | Nonsectarian |
| Way Of Faith Christian Academy | 6.9 |
Regular elementary or secondary | KG-12 | 153 | 10.2 | Assembly of God |
| Northern Virginia Christian Academy | 7.3 |
Regular elementary or secondary | KG-12 | 165 | 8.3 | Christian (no specific denomination) |
| Trinity Christian School | 8.3 |
Regular elementary or secondary | 1-12 | 553 | 13.0 | Christian (no specific denomination) |
| The Potomac School | 8.6 |
Regular elementary or secondary | KG-12 | 931 | 6.7 | Nonsectarian |
| Christian Faith & Fellowship School | 9.1 |
Regular elementary or secondary | Pre-KG-12 | 333 | 17.2 | Christian (no specific denomination) |
| Chesterbrook Montessori School | 9.9 |
Montessori | Ungraded-Ungraded | 54 | 13.5 | Nonsectarian |
| Oakwood School | 11.6 |
Special education | Ungraded-Ungraded | 114 | 5.3 | Nonsectarian |
| Phillips School-annandale | 11.8 |
Special education | 4-12 | 189 | 8.2 | Nonsectarian |
| Word Of Life Christian Academy | 12.1 |
Regular elementary or secondary | Pre-KG-12 | 204 | 10.2 | Assembly of God |
| Accotink Academy | 12.2 |
Special education | Ungraded-Ungraded | 151 | 6.0 | Nonsectarian |
| Leary School Of Virginia | 12.3 |
Special education | 4-12 | 63 | 6.3 | Nonsectarian |
| Chesapeake Academy | 13.0 |
Special program emphasis | Pre-KG-12 | 36 | 6.8 | Nonsectarian |
| Emmanuel Christian School | 13.9 |
Regular elementary or secondary | Pre-KG-12 | 209 | 11.3 | Baptist |
| St Stephen's & St Agnes School | 14.7 |
Regular elementary or secondary | Pre-KG-12 | 1132 | 8.4 | Episcopal |
| Leesburg Christian School | 15.5 |
Regular elementary or secondary | Pre-KG-12 | 156 | 9.6 | Baptist |
| Commonwealth Academy | 16.7 |
Alternative/other | 6-12 | 89 | 6.0 | Nonsectarian |
| Engleside Christian School | 18.6 |
Regular elementary or secondary | Pre-KG-12 | 101 | 7.5 | Baptist |
| Cary Christian Academy | 18.8 |
Regular elementary or secondary | Pre-KG-12 | 117 | 7.8 | Christian (no specific denomination) |
| Islamic Saudi Academy | 18.9 |
Regular elementary or secondary | Pre-KG-12 | 911 | 7.3 | Islamic |
| Youth For Tomorrow | 19.5 |
Regular elementary or secondary | 6-12 | 65 | 5.4 | Christian (no specific denomination) |
| Christ Chapel Academy | 21.0 |
Regular elementary or secondary | Pre-KG-11 | 428 | 14.6 | Assembly of God |
| Heritage Christian School | 22.2 |
Regular elementary or secondary | KG-12 | 335 | 12.9 | Baptist |
| Evangel Christian School | 22.3 |
Regular elementary or secondary | Pre-KG-12 | 169 | 9.7 | Baptist |
