| Glen Eden Institute | 3.4 |
Special education | 3-12 | 4 | 1.1 | Nonsectarian |
| Christ The King Academy | 3.6 |
Regular elementary or secondary | KG-9 | 152 | 11.7 | Assembly of God |
| West Sound Academy | 4.8 |
Regular elementary or secondary | 6-12 | 96 | 6.7 | Nonsectarian |
| King's Schools | 11.6 |
Regular elementary or secondary | Pre-KG-12 | 1215 | 16.1 | Christian (no specific denomination) |
| Lakeside School | 13.1 |
Regular elementary or secondary | 5-12 | 773 | 9.1 | Nonsectarian |
| Northgate Christian Academy | 13.1 |
Regular elementary or secondary | Pre-KG-12 | 23 | 4.7 | Baptist |
| Shoreline Christian School | 14.2 |
Regular elementary or secondary | Pre-KG-12 | 254 | 10.9 | Christian (no specific denomination) |
| Dartmoor School | 14.3 |
Regular elementary or secondary | Ungraded-Ungraded | 50 | 10.2 | Nonsectarian |
| Kitsap Adventist Christian School | 14.5 |
Regular elementary or secondary | KG-9 | 34 | 11.3 | Seventh-Day Adventist |
| Seattle Waldorf School | 15.1 |
Special program emphasis | Pre-KG-12 | 218 | 8.9 | Nonsectarian |
| University Prep | 15.4 |
Regular elementary or secondary | 6-12 | 478 | 8.6 | Nonsectarian |
| Menachem Mendel Seattle Cheder Mmsc Day School | 15.9 |
Regular elementary or secondary | Pre-KG-10 | 61 | 4.2 | Jewish |
| Providence Classical Christian School | 16.0 |
Special program emphasis | Pre-KG-12 | 167 | 8.4 | Calvinist |
| Morningside Academy | 16.5 |
Special education | 2-11 | 75 | 8.8 | Nonsectarian |
| Seattle Academy | 17.6 |
Regular elementary or secondary | 6-12 | 581 | 10.9 | Nonsectarian |
| South Kitsap Christian School | 17.8 |
Regular elementary or secondary | Pre-KG-12 | 55 | 11.0 | Christian (no specific denomination) |
| The Bush School | 18.2 |
Regular elementary or secondary | KG-12 | 580 | 8.7 | Nonsectarian |
| The Clearwater School | 18.3 |
Alternative/other | Ungraded-Ungraded | 63 | 13.7 | Nonsectarian |
| Island Christian Academy | 18.5 |
Regular elementary or secondary | KG-11 | 32 | 8.9 | Christian (no specific denomination) |
| Heritage Christian Academy | 18.5 |
Regular elementary or secondary | Pre-KG-9 | 140 | 7.6 | Baptist |
| Countryside Montessori School | 18.7 |
Montessori | Pre-KG-Pre-KG | 20 | 6.7 | Nonsectarian |
| Cedar Park Christian Schools | 19.2 |
Regular elementary or secondary | Pre-KG-12 | 1528 | 15.2 | Assembly of God |
| Montessori Schools Of Snohomish County | 20.7 |
Montessori | Ungraded-Ungraded | 75 | 10.0 | Nonsectarian |
| Dartmoor School | 20.8 |
Regular elementary or secondary | 4-12 | 46 | 10.2 | Nonsectarian |
| Eastside Preparatory School | 20.9 |
Regular elementary or secondary | 6-11 | 139 | 7.3 | Nonsectarian |
| Chrysalis School | 21.0 |
Alternative/other | KG-12 | 266 | 5.3 | Nonsectarian |
| Woodinville Montessori School | 21.0 |
Montessori | Pre-KG-9 | 176 | 8.7 | Nonsectarian |
| Bellevue Christian School | 21.1 |
Regular elementary or secondary | Pre-KG-12 | 1021 | 12.2 | Christian (no specific denomination) |
| Northwest Academy | 21.1 |
Regular elementary or secondary | KG-12 | 27 | 3.4 | Nonsectarian |
| Children's Institute For Learning Differences | 22.6 |
Special education | Pre-KG-12 | 38 | 5.4 | Nonsectarian |
| Etc Preparatory Academy | 23.0 |
Alternative/other | 6-12 | 58 | 2.2 | Nonsectarian |
| Dartmoor School | 23.2 |
Alternative/other | 2-12 | 89 | 3.3 | Nonsectarian |
| Jefferson Community School | 24.3 |
Alternative/other | 6-12 | 41 | 10.0 | Nonsectarian |
| Family Academy And Academy Northwest | 24.7 |
Regular elementary or secondary | KG-12 | 475 | 12.8 | Nonsectarian |
