| Benchmark Young Adult School | 0.0 |
Alternative/other | Ungraded-Ungraded | 50 | 12.5 | Nonsectarian |
| Montessori In Redlands Inc | 0.7 |
Montessori | Pre-KG-9 | 164 | 9.7 | Nonsectarian |
| Redlands Adventist Academy | 1.4 |
Regular elementary or secondary | KG-12 | 493 | 14.5 | Seventh-Day Adventist |
| Abc Hope For Kids | 1.4 |
Special education | Pre-KG-12 | 28 | 9.3 | Nonsectarian |
| Packinghouse Christian Academy | 1.8 |
Regular elementary or secondary | KG-12 | 293 | 14.0 | Christian (no specific denomination) |
| Loma Linda Academy | 2.3 |
Regular elementary or secondary | KG-12 | 1572 | 17.0 | Seventh-Day Adventist |
| Eagle Valley School | 5.7 |
Special education | 5-12 | 48 | 12.0 | Nonsectarian |
| American Christian Military Academy | 6.2 |
Regular elementary or secondary | 5-12 | 47 | 9.6 | Christian (no specific denomination) |
| Odell Young Alternative School | 6.2 |
Special education | 2-11 | 35 | 7.0 | Nonsectarian |
| Immanuel Baptist School | 6.5 |
Alternative/other | Pre-KG-12 | 66 | 13.8 | Baptist |
| Kings Chapel Christian Academy | 7.3 |
Alternative/other | 3-12 | 16 | 8.0 | Christian (no specific denomination) |
| Temple Learning Center | 7.3 |
Regular elementary or secondary | Pre-KG-12 | 31 | 10.3 | Christian (no specific denomination) |
| Big Springs Center & School | 8.0 |
Special education | Ungraded-Ungraded | 15 | 1.9 | Nonsectarian |
| Calvary Chapel Christian School | 8.1 |
Regular elementary or secondary | KG-12 | 555 | 15.7 | Christian (no specific denomination) |
| Cornerstone Fellowship Academy | 9.0 |
Regular elementary or secondary | 1-10 | 16 | 1.8 | Christian (no specific denomination) |
| Gateway Education Center | 9.3 |
Regular elementary or secondary | KG-12 | 96 | 10.8 | Pentecostal |
| Lighthouse Christian Academy | 9.4 |
Regular elementary or secondary | KG-12 | 85 | 9.7 | Pentecostal |
| Bloomington Christian School | 9.6 |
Regular elementary or secondary | Pre-KG-12 | 903 | 14.8 | Church of the Nazarene |
| Live Oak School | 9.9 |
Special education | 6-12 | 45 | 9.0 | Nonsectarian |
| Altus Academy Rialto | 10.8 |
Special education | KG-12 | 57 | 11.4 | Nonsectarian |
| Mesa Grande Academy | 12.0 |
Regular elementary or secondary | KG-12 | 306 | 13.3 | Seventh-Day Adventist |
| Woodcrest Christian School System | 13.9 |
Regular elementary or secondary | KG-12 | 1104 | 21.2 | Christian (no specific denomination) |
| Lake Arrowhead Christian School | 14.7 |
Regular elementary or secondary | KG-12 | 118 | 12.6 | Christian (no specific denomination) |
| Somerset Educational Services | 14.8 |
Special education | KG-12 | 216 | 12.0 | Nonsectarian |
| Riverside Christian Schools | 15.2 |
Regular elementary or secondary | Pre-KG-12 | 921 | 19.3 | Christian (no specific denomination) |
| Cherry Valley Brethren Schools | 15.3 |
Regular elementary or secondary | KG-12 | 56 | 14.0 | Brethren |
| Mountainside Private School | 16.0 |
Regular elementary or secondary | 3-12 | 12 | 9.2 | Nonsectarian |
| Oak Grove At The Ranch | 16.2 |
Special education | 3-12 | 39 | 6.5 | Nonsectarian |
| Jesus Center Christian School | 16.6 |
Regular elementary or secondary | KG-11 | 26 | 9.0 | Christian (no specific denomination) |
| Uhs Schools, Riverside Formerly Known As Keystone | 16.7 |
Special education | Ungraded-Ungraded | 185 | 10.3 | Nonsectarian |
| Childhelp School | 17.5 |
Special education | 1-12 | 76 | 10.9 | Nonsectarian |
| Praise Fellowship Christian Academy | 18.2 |
Regular elementary or secondary | KG-12 | 11 | 4.8 | Christian (no specific denomination) |
| La Sierra Academy | 18.6 |
Regular elementary or secondary | KG-12 | 819 | 20.5 | Seventh-Day Adventist |
| Grace Prep School | 18.8 |
Alternative/other | Pre-KG-12 | 53 | 2.4 | Christian (no specific denomination) |
| Calvary Christian School | 19.3 |
Regular elementary or secondary | KG-12 | 124 | 12.3 | Baptist |
| California Ranch School | 20.4 |
Regular elementary or secondary | 1-12 | 12 | 10.9 | Nonsectarian |
| Lighthouse Christian Academy | 20.9 |
Regular elementary or secondary | 2-11 | 7 | 2.3 | Christian (no specific denomination) |
| Montecito Baptist School | 21.5 |
Regular elementary or secondary | KG-12 | 98 | 11.5 | Baptist |
| Berean Christian | 21.5 |
Regular elementary or secondary | KG-12 | 57 | 5.5 | Christian (no specific denomination) |
| Oliver Christian School Center | 22.2 |
Alternative/other | 2-12 | 11 | 1.8 | Christian (no specific denomination) |
| San Antonio Christian School | 22.7 |
Regular elementary or secondary | KG-10 | 89 | 14.6 | Seventh-Day Adventist |
| Amor Christian Academy | 23.5 |
Regular elementary or secondary | 1-12 | 41 | 8.2 | Christian (no specific denomination) |
| Gospel Restoration Academy | 24.3 |
Regular elementary or secondary | Pre-KG-12 | 18 | 3.0 | Church of God |
| Marywood-palm Valley School | 24.5 |
Regular elementary or secondary | Pre-KG-12 | 415 | 8.4 | Nonsectarian |
| Christian Heritage | 24.8 |
Alternative/other | KG-12 | 388 | 27.7 | Christian (no specific denomination) |
| Upland Christian Schools | 24.8 |
Regular elementary or secondary | KG-12 | 607 | 15.2 | Church of the Nazarene |
