| Montessori Schools Of Snohomish County | 11.3 |
Montessori | Ungraded-Ungraded | 75 | 10.0 | Nonsectarian |
| Grace Academy | 13.1 |
Regular elementary or secondary | Pre-KG-12 | 307 | 15.9 | Christian (no specific denomination) |
| Arlington Christian School | 15.0 |
Regular elementary or secondary | Pre-KG-12 | 72 | 10.3 | Christian (no specific denomination) |
| Peaceful Glen Christian School | 15.9 |
Regular elementary or secondary | Pre-KG-12 | 66 | 8.5 | Christian (no specific denomination) |
| Providence Classical Christian School | 16.2 |
Special program emphasis | Pre-KG-12 | 167 | 8.4 | Calvinist |
| The Clearwater School | 16.3 |
Alternative/other | Ungraded-Ungraded | 63 | 13.7 | Nonsectarian |
| King's Schools | 17.2 |
Regular elementary or secondary | Pre-KG-12 | 1215 | 16.1 | Christian (no specific denomination) |
| Jefferson Community School | 17.4 |
Alternative/other | 6-12 | 41 | 10.0 | Nonsectarian |
| Children's Garden Montessori School Of Poulsbo | 18.5 |
Montessori | Ungraded-Ungraded | 21 | 21.0 | Nonsectarian |
| Heritage Christian Academy | 19.5 |
Regular elementary or secondary | Pre-KG-9 | 140 | 7.6 | Baptist |
| Academy Northwest/family Academy | 19.6 |
Alternative/other | 1-12 | 485 | 26.1 | Christian (no specific denomination) |
| Shoreline Christian School | 19.9 |
Regular elementary or secondary | Pre-KG-12 | 254 | 10.9 | Christian (no specific denomination) |
| Lakeside School | 19.9 |
Regular elementary or secondary | 5-12 | 773 | 9.1 | Nonsectarian |
| Chrysalis School | 21.1 |
Alternative/other | KG-12 | 266 | 5.3 | Nonsectarian |
| Cedar Park Christian Schools | 21.2 |
Regular elementary or secondary | Pre-KG-12 | 1528 | 15.2 | Assembly of God |
| Northwest Academy | 21.5 |
Regular elementary or secondary | KG-12 | 27 | 3.4 | Nonsectarian |
| Northgate Christian Academy | 21.6 |
Regular elementary or secondary | Pre-KG-12 | 23 | 4.7 | Baptist |
| Dartmoor School | 21.6 |
Regular elementary or secondary | 4-12 | 46 | 10.2 | Nonsectarian |
| Bible Baptist Church School | 21.9 |
Regular elementary or secondary | 2-12 | 31 | 7.8 | Baptist |
| Glen Eden Institute | 21.9 |
Special education | 3-12 | 4 | 1.1 | Nonsectarian |
| Woodinville Montessori School | 22.0 |
Montessori | Pre-KG-9 | 176 | 8.7 | Nonsectarian |
| Christ The King Academy | 22.1 |
Regular elementary or secondary | KG-9 | 152 | 11.7 | Assembly of God |
| Countryside Montessori School | 22.2 |
Montessori | Pre-KG-Pre-KG | 20 | 6.7 | Nonsectarian |
| Dartmoor School | 22.3 |
Regular elementary or secondary | Ungraded-Ungraded | 50 | 10.2 | Nonsectarian |
| Seattle Waldorf School | 22.3 |
Special program emphasis | Pre-KG-12 | 218 | 8.9 | Nonsectarian |
| West Sound Academy | 22.8 |
Regular elementary or secondary | 6-12 | 96 | 6.7 | Nonsectarian |
| University Prep | 23.2 |
Regular elementary or secondary | 6-12 | 478 | 8.6 | Nonsectarian |
| Menachem Mendel Seattle Cheder Mmsc Day School | 24.9 |
Regular elementary or secondary | Pre-KG-10 | 61 | 4.2 | Jewish |
