| Whitfield School | 8.8 |
Regular elementary or secondary | 6-12 | 470 | 7.6 | Nonsectarian |
| Chesterfield Day School-st Albans | 8.9 |
Regular elementary or secondary | Pre-KG-12 | 124 | 11.4 | Nonsectarian |
| The Principia School | 9.3 |
Regular elementary or secondary | Pre-KG-12 | 528 | 8.8 | Other |
| Moog Center For Deaf Education | 10.4 |
Special education | Ungraded-Ungraded | 34 | 2.2 | Nonsectarian |
| Churchill Center & School | 10.4 |
Special education | 2-10 | 129 | 4.0 | Nonsectarian |
| Apprende Private School | 12.0 |
Regular elementary or secondary | Pre-KG-12 | 17 | 3.9 | Nonsectarian |
| Chaminade College Prep School | 12.8 |
Regular elementary or secondary | 6-12 | 867 | 9.5 | Roman Catholic |
| Christian Academy Of Greater St Louis | 13.2 |
Regular elementary or secondary | Pre-KG-12 | 164 | 9.8 | Church of Christ |
| Mary Institute & St Louis Country Day School | 13.3 |
Regular elementary or secondary | Pre-KG-12 | 1207 | 8.9 | Nonsectarian |
| New Life Christian School | 13.9 |
Regular elementary or secondary | Pre-KG-12 | 123 | 12.3 | Pentecostal |
| The Miriam School | 15.2 |
Special education | Ungraded-Ungraded | 93 | 9.0 | Nonsectarian |
| Edgewood Children Center | 15.6 |
Special education | Ungraded-Ungraded | 160 | 8.4 | Nonsectarian |
| Ecc-childhaven | 15.6 |
Special education | Ungraded-Ungraded | 35 | 8.8 | Nonsectarian |
| Epworth School | 15.9 |
Special education | 4-12 | 73 | 9.1 | Nonsectarian |
| Evangelical Childrens Home School | 17.1 |
Special education | 3-12 | 57 | 9.5 | Church of Christ |
| Crosspoint Christian School | 17.4 |
Regular elementary or secondary | Pre-KG-12 | 93 | 9.2 | Christian (no specific denomination) |
| Metropolitan School | 17.8 |
Special education | Ungraded-Ungraded | 42 | 5.2 | Nonsectarian |
| St Vincent Home/school | 19.0 |
Special education | 4-12 | 46 | 7.7 | Nonsectarian |
| North County Christian School | 19.2 |
Regular elementary or secondary | Pre-KG-12 | 482 | 13.8 | Church of the Nazarene |
| Child Center - Marygrove | 19.3 |
Special education | 3-9 | 9 | 9.0 | Nonsectarian |
| People's Christian Academy | 19.5 |
Regular elementary or secondary | KG-12 | 65 | 8.9 | Assembly of God |
| Foristell Baptist Academy | 20.4 |
Regular elementary or secondary | 1-11 | 11 | 2.2 | Baptist |
| Central Institute For The Deaf | 20.7 |
Special education | Ungraded-Ungraded | 18 | 3.5 | Nonsectarian |
| Dept Of Special Education | 20.8 |
Special education | Ungraded-Ungraded | 158 | 7.9 | Roman Catholic |
| Tower Grove Christian School | 21.1 |
Regular elementary or secondary | KG-12 | 280 | 11.1 | Baptist |
| St Louis Christian Academy | 22.3 |
Regular elementary or secondary | Pre-KG-12 | 124 | 8.4 | Christian (no specific denomination) |
| Calvary Christian School | 24.2 |
Regular elementary or secondary | 3-11 | 14 | 7.0 | Assembly of God |
| Liberty Christian Academy | 24.5 |
Regular elementary or secondary | Pre-KG-12 | 80 | 8.9 | Christian (no specific denomination) |
