| Montessori Schools Of Snohomish County | 5.2 |
Montessori | Ungraded-Ungraded | 75 | 10.0 | Nonsectarian |
| The Clearwater School | 8.7 |
Alternative/other | Ungraded-Ungraded | 63 | 13.7 | Nonsectarian |
| Grace Academy | 10.8 |
Regular elementary or secondary | Pre-KG-12 | 307 | 15.9 | Christian (no specific denomination) |
| Providence Classical Christian School | 11.0 |
Special program emphasis | Pre-KG-12 | 167 | 8.4 | Calvinist |
| Chrysalis School | 11.1 |
Alternative/other | KG-12 | 266 | 5.3 | Nonsectarian |
| Northwest Academy | 11.4 |
Regular elementary or secondary | KG-12 | 27 | 3.4 | Nonsectarian |
| Heritage Christian Academy | 11.5 |
Regular elementary or secondary | Pre-KG-9 | 140 | 7.6 | Baptist |
| Dartmoor School | 11.8 |
Regular elementary or secondary | 4-12 | 46 | 10.2 | Nonsectarian |
| Woodinville Montessori School | 12.1 |
Montessori | Pre-KG-9 | 176 | 8.7 | Nonsectarian |
| Cedar Park Christian Schools | 12.8 |
Regular elementary or secondary | Pre-KG-12 | 1528 | 15.2 | Assembly of God |
| Countryside Montessori School | 14.5 |
Montessori | Pre-KG-Pre-KG | 20 | 6.7 | Nonsectarian |
| The Overlake School | 15.6 |
Regular elementary or secondary | 5-12 | 498 | 10.0 | Nonsectarian |
| King's Schools | 15.8 |
Regular elementary or secondary | Pre-KG-12 | 1215 | 16.1 | Christian (no specific denomination) |
| Shoreline Christian School | 15.9 |
Regular elementary or secondary | Pre-KG-12 | 254 | 10.9 | Christian (no specific denomination) |
| Island Christian Academy | 15.9 |
Regular elementary or secondary | KG-11 | 32 | 8.9 | Christian (no specific denomination) |
| Lakeside School | 16.9 |
Regular elementary or secondary | 5-12 | 773 | 9.1 | Nonsectarian |
| Seattle Waldorf School | 17.8 |
Special program emphasis | Pre-KG-12 | 218 | 8.9 | Nonsectarian |
| Dartmoor School | 18.4 |
Regular elementary or secondary | Ungraded-Ungraded | 50 | 10.2 | Nonsectarian |
| Arlington Christian School | 18.5 |
Regular elementary or secondary | Pre-KG-12 | 72 | 10.3 | Christian (no specific denomination) |
| University Prep | 18.7 |
Regular elementary or secondary | 6-12 | 478 | 8.6 | Nonsectarian |
| Northgate Christian Academy | 18.7 |
Regular elementary or secondary | Pre-KG-12 | 23 | 4.7 | Baptist |
| Eastside Preparatory School | 19.6 |
Regular elementary or secondary | 6-11 | 139 | 7.3 | Nonsectarian |
| Academy Northwest/family Academy | 19.9 |
Alternative/other | 1-12 | 485 | 26.1 | Christian (no specific denomination) |
| Menachem Mendel Seattle Cheder Mmsc Day School | 20.3 |
Regular elementary or secondary | Pre-KG-10 | 61 | 4.2 | Jewish |
| Dartmoor School | 20.7 |
Alternative/other | 2-12 | 89 | 3.3 | Nonsectarian |
| Bellevue Christian School | 21.0 |
Regular elementary or secondary | Pre-KG-12 | 1021 | 12.2 | Christian (no specific denomination) |
| Arbor Schools | 22.3 |
Montessori | KG-9 | 110 | 9.7 | Nonsectarian |
| The Bush School | 22.4 |
Regular elementary or secondary | KG-12 | 580 | 8.7 | Nonsectarian |
| Seattle Academy | 23.5 |
Regular elementary or secondary | 6-12 | 581 | 10.9 | Nonsectarian |
| Morningside Academy | 23.6 |
Special education | 2-11 | 75 | 8.8 | Nonsectarian |
| Etc Preparatory Academy | 24.2 |
Alternative/other | 6-12 | 58 | 2.2 | Nonsectarian |
| Children's Institute For Learning Differences | 24.6 |
Special education | Pre-KG-12 | 38 | 5.4 | Nonsectarian |
| Dartmoor School | 24.7 |
Special program emphasis | 1-12 | 41 | 9.1 | Nonsectarian |
| Forest Ridge School Of The Sacred Heart | 25.0 |
Regular elementary or secondary | 5-12 | 384 | 8.4 | Roman Catholic |
