| Riverside Christian Schools | 0.0 |
Regular elementary or secondary | Pre-KG-12 | 921 | 19.3 | Christian (no specific denomination) |
| Uhs Schools, Riverside Formerly Known As Keystone | 1.7 |
Special education | Ungraded-Ungraded | 185 | 10.3 | Nonsectarian |
| La Sierra Academy | 3.8 |
Regular elementary or secondary | KG-12 | 819 | 20.5 | Seventh-Day Adventist |
| Somerset Educational Services | 4.8 |
Special education | KG-12 | 216 | 12.0 | Nonsectarian |
| Woodcrest Christian School System | 5.6 |
Regular elementary or secondary | KG-12 | 1104 | 21.2 | Christian (no specific denomination) |
| Big Springs Center & School | 7.3 |
Special education | Ungraded-Ungraded | 15 | 1.9 | Nonsectarian |
| Amor Christian Academy | 8.5 |
Regular elementary or secondary | 1-12 | 41 | 8.2 | Christian (no specific denomination) |
| California Ranch School | 8.6 |
Regular elementary or secondary | 1-12 | 12 | 10.9 | Nonsectarian |
| Immanuel Baptist School | 8.9 |
Alternative/other | Pre-KG-12 | 66 | 13.8 | Baptist |
| Cornerstone Fellowship Academy | 9.7 |
Regular elementary or secondary | 1-10 | 16 | 1.8 | Christian (no specific denomination) |
| Christian Heritage | 10.0 |
Alternative/other | KG-12 | 388 | 27.7 | Christian (no specific denomination) |
| Grace Christian Academy | 10.5 |
Regular elementary or secondary | Pre-KG-12 | 197 | 14.1 | Baptist |
| Bloomington Christian School | 10.8 |
Regular elementary or secondary | Pre-KG-12 | 903 | 14.8 | Church of the Nazarene |
| Lighthouse Christian Academy | 11.1 |
Regular elementary or secondary | KG-12 | 85 | 9.7 | Pentecostal |
| Corona Christian School | 11.2 |
Regular elementary or secondary | Pre-KG-12 | 15 | 7.9 | Christian (no specific denomination) |
| Oak Grove At The Ranch | 11.7 |
Special education | 3-12 | 39 | 6.5 | Nonsectarian |
| Kings Chapel Christian Academy | 11.8 |
Alternative/other | 3-12 | 16 | 8.0 | Christian (no specific denomination) |
| Montecito Baptist School | 11.8 |
Regular elementary or secondary | KG-12 | 98 | 11.5 | Baptist |
| Altus Academy Rialto | 12.0 |
Special education | KG-12 | 57 | 11.4 | Nonsectarian |
| Loma Linda Academy | 13.4 |
Regular elementary or secondary | KG-12 | 1572 | 17.0 | Seventh-Day Adventist |
| Praise Fellowship Christian Academy | 14.2 |
Regular elementary or secondary | KG-12 | 11 | 4.8 | Christian (no specific denomination) |
| Abc Hope For Kids | 14.6 |
Special education | Pre-KG-12 | 28 | 9.3 | Nonsectarian |
| Calvary Chapel Christian School | 14.7 |
Regular elementary or secondary | KG-12 | 555 | 15.7 | Christian (no specific denomination) |
| Temple Learning Center | 14.8 |
Regular elementary or secondary | Pre-KG-12 | 31 | 10.3 | Christian (no specific denomination) |
| Montessori In Redlands Inc | 15.0 |
Montessori | Pre-KG-9 | 164 | 9.7 | Nonsectarian |
| Lighthouse Christian Academy | 15.0 |
Regular elementary or secondary | 2-11 | 7 | 2.3 | Christian (no specific denomination) |
| Benchmark Young Adult School | 15.2 |
Alternative/other | Ungraded-Ungraded | 50 | 12.5 | Nonsectarian |
| Eagle Valley School | 15.5 |
Special education | 5-12 | 48 | 12.0 | Nonsectarian |
| San Antonio Christian School | 15.8 |
Regular elementary or secondary | KG-10 | 89 | 14.6 | Seventh-Day Adventist |
| Redlands Adventist Academy | 15.8 |
Regular elementary or secondary | KG-12 | 493 | 14.5 | Seventh-Day Adventist |
| Packinghouse Christian Academy | 16.8 |
Regular elementary or secondary | KG-12 | 293 | 14.0 | Christian (no specific denomination) |
| American Christian Military Academy | 16.9 |
Regular elementary or secondary | 5-12 | 47 | 9.6 | Christian (no specific denomination) |
| Gospel Restoration Academy | 17.3 |
Regular elementary or secondary | Pre-KG-12 | 18 | 3.0 | Church of God |
| Marywood-palm Valley School | 17.4 |
Regular elementary or secondary | Pre-KG-12 | 415 | 8.4 | Nonsectarian |
| Upland Christian Schools | 17.5 |
Regular elementary or secondary | KG-12 | 607 | 15.2 | Church of the Nazarene |
| Odell Young Alternative School | 18.3 |
Special education | 2-11 | 35 | 7.0 | Nonsectarian |
| Gateway Education Center | 18.6 |
Regular elementary or secondary | KG-12 | 96 | 10.8 | Pentecostal |
| Jesus Center Christian School | 18.7 |
Regular elementary or secondary | KG-11 | 26 | 9.0 | Christian (no specific denomination) |
| Oliver Christian School Center | 19.3 |
Alternative/other | 2-12 | 11 | 1.8 | Christian (no specific denomination) |
| Grace Prep School | 19.4 |
Alternative/other | Pre-KG-12 | 53 | 2.4 | Christian (no specific denomination) |
| Carbon Canyon Christian School | 21.6 |
Regular elementary or secondary | 1-12 | 40 | 4.4 | Christian (no specific denomination) |
| Mountainside Private School | 21.7 |
Regular elementary or secondary | 3-12 | 12 | 9.2 | Nonsectarian |
| Live Oak School | 21.8 |
Special education | 6-12 | 45 | 9.0 | Nonsectarian |
| Vineyard Christian School | 21.8 |
Regular elementary or secondary | Pre-KG-12 | 329 | 17.0 | Christian (no specific denomination) |
| City Of Knowledge School | 22.2 |
Regular elementary or secondary | Pre-KG-12 | 233 | 13.0 | Islamic |
| Faith Baptist Academy | 22.6 |
Regular elementary or secondary | KG-12 | 175 | 16.2 | Baptist |
| Fulbright Montessori Academy | 22.9 |
Early childhood program/child care center | Pre-KG-Pre-KG | 21 | 21.0 | Nonsectarian |
| Haynes Education Center | 23.0 |
Special education | 2-12 | 99 | 7.6 | Nonsectarian |
| Cornerstone Christian School | 23.2 |
Regular elementary or secondary | KG-12 | 296 | 12.1 | Christian (no specific denomination) |
| On Track Custom Learning Solutions | 23.3 |
Alternative/other | 5-12 | 65 | 16.2 | Nonsectarian |
| Eldorado School/emerson Honors | 23.6 |
Special program emphasis | Pre-KG-12 | 167 | 8.6 | Nonsectarian |
| Hope Christian | 23.7 |
Alternative/other | KG-12 | 61 | 1.9 | Christian (no specific denomination) |
| Mesa Grande Academy | 23.7 |
Regular elementary or secondary | KG-12 | 306 | 13.3 | Seventh-Day Adventist |
| The Master's Academy | 23.7 |
Regular elementary or secondary | KG-12 | 50 | 2.5 | Christian (no specific denomination) |
| Joan Macy School | 23.9 |
Special education | 6-12 | 44 | 5.9 | Nonsectarian |
| St Michael The Archangel Academy | 24.0 |
Alternative/other | KG-12 | 221 | 221.0 | Roman Catholic |
| Orange Hills | 24.1 |
Regular elementary or secondary | Pre-KG-10 | 40 | 5.3 | Assembly of God |
| Calvary Baptist Schools | 24.2 |
Regular elementary or secondary | Pre-KG-12 | 95 | 4.8 | Baptist |
| The Eirich | 24.6 |
Regular elementary or secondary | 1-11 | 7 | 3.7 | Nonsectarian |
| Agape Academy | 24.8 |
Regular elementary or secondary | 1-12 | 78 | 4.0 | Christian (no specific denomination) |
| Saddleback Christian Academy | 24.9 |
Alternative/other | KG-12 | 278 | 2.0 | Christian (no specific denomination) |
| Spirit Academy | 25.0 |
Regular elementary or secondary | KG-12 | 196 | 9.4 | Christian (no specific denomination) |
