| Haynes Education Center | 1.0 |
Special education | 2-12 | 99 | 7.6 | Nonsectarian |
| Joan Macy School | 2.1 |
Special education | 6-12 | 44 | 5.9 | Nonsectarian |
| Calvary Baptist Schools | 2.2 |
Regular elementary or secondary | Pre-KG-12 | 95 | 4.8 | Baptist |
| Canyon View School | 4.2 |
Special education | KG-12 | 109 | 9.1 | Nonsectarian |
| Upland Christian Schools | 5.5 |
Regular elementary or secondary | KG-12 | 607 | 15.2 | Church of the Nazarene |
| Live Oak Canyon School | 5.7 |
Special education | 2-12 | 38 | 8.3 | Nonsectarian |
| Marywood-palm Valley School | 5.8 |
Regular elementary or secondary | Pre-KG-12 | 415 | 8.4 | Nonsectarian |
| Covina Baptist Academy | 6.1 |
Regular elementary or secondary | KG-12 | 25 | 6.9 | Baptist |
| Gospel Restoration Academy | 6.1 |
Regular elementary or secondary | Pre-KG-12 | 18 | 3.0 | Church of God |
| Quest Academy Inc | 6.3 |
Special education | KG-12 | 60 | 10.0 | Nonsectarian |
| San Antonio Christian School | 7.7 |
Regular elementary or secondary | KG-10 | 89 | 14.6 | Seventh-Day Adventist |
| Western Christian Isp | 8.9 |
Alternative/other | KG-12 | 496 | 50.6 | Christian (no specific denomination) |
| Christbridge Academy | 9.1 |
Regular elementary or secondary | 2-12 | 69 | 5.8 | Christian (no specific denomination) |
| Montecito Baptist School | 10.4 |
Regular elementary or secondary | KG-12 | 98 | 11.5 | Baptist |
| Ivy League School | 11.3 |
Regular elementary or secondary | 1-12 | 114 | 9.1 | Nonsectarian |
| Alpha & Omega Christian Academy | 12.1 |
Regular elementary or secondary | KG-12 | 13 | 6.5 | Pentecostal |
| Mid Valley Learning Centers Inc | 12.9 |
Special education | 5-12 | 43 | 10.8 | Nonsectarian |
| Carbon Canyon Christian School | 12.9 |
Regular elementary or secondary | 1-12 | 40 | 4.4 | Christian (no specific denomination) |
| Abc School-duarte | 13.3 |
Special education | Pre-KG-Pre-KG | 20 | 5.0 | Nonsectarian |
| Calvary Christian School | 13.6 |
Regular elementary or secondary | 6-12 | 7 | 3.5 | Pentecostal |
| Calvary Road Baptist Academy | 15.0 |
Regular elementary or secondary | KG-12 | 42 | 6.4 | Baptist |
| Morning Star Christian School | 15.0 |
Regular elementary or secondary | KG-12 | 74 | 8.6 | Christian (no specific denomination) |
| Rio Hondo Preparatory School | 15.6 |
Regular elementary or secondary | 6-12 | 197 | 10.2 | Nonsectarian |
| Hbic/the Cleta Harder Developmental School | 16.1 |
Special education | Ungraded-Ungraded | 30 | 7.5 | Nonsectarian |
| Hope Christian | 16.2 |
Alternative/other | KG-12 | 61 | 1.9 | Christian (no specific denomination) |
| The Art House | 16.6 |
Alternative/other | Ungraded-Ungraded | 200 | 500.0 | Nonsectarian |
| Eastside Christian Schools | 17.0 |
Regular elementary or secondary | Pre-KG-12 | 410 | 12.3 | Christian (no specific denomination) |
| Alternative Educational Services | 17.1 |
Alternative/other | Ungraded-Ungraded | 15 | 6.5 | Nonsectarian |
| Vineyard Christian School | 17.3 |
Regular elementary or secondary | Pre-KG-12 | 329 | 17.0 | Christian (no specific denomination) |
| Committed Christian School | 17.5 |
Alternative/other | 1-12 | 68 | 5.7 | Christian (no specific denomination) |
| Christian Heritage | 18.1 |
Alternative/other | KG-12 | 388 | 27.7 | Christian (no specific denomination) |
| Remnant Christian School | 18.7 |
Regular elementary or secondary | 3-9 | 13 | 2.7 | Christian (no specific denomination) |
| San Gabriel Academy | 18.8 |
Regular elementary or secondary | KG-12 | 421 | 14.7 | Seventh-Day Adventist |
| Corona Christian School | 18.9 |
Regular elementary or secondary | Pre-KG-12 | 15 | 7.9 | Christian (no specific denomination) |
| Amor Christian Academy | 19.1 |
Regular elementary or secondary | 1-12 | 41 | 8.2 | Christian (no specific denomination) |
| Orange Hills | 19.3 |
Regular elementary or secondary | Pre-KG-10 | 40 | 5.3 | Assembly of God |
| Watchman Nee Memorial School | 19.4 |
Regular elementary or secondary | 1-9 | 10 | 2.0 | Christian (no specific denomination) |
| Pyramid Autism Center | 19.6 |
Special education | Ungraded-Ungraded | 19 | 4.8 | Nonsectarian |
| La Sierra Academy | 19.6 |
Regular elementary or secondary | KG-12 | 819 | 20.5 | Seventh-Day Adventist |
| Altus Academy Rialto | 19.7 |
Special education | KG-12 | 57 | 11.4 | Nonsectarian |
| Solid Faith Christian School | 19.8 |
Regular elementary or secondary | KG-12 | 30 | 7.5 | Pentecostal |
| Grace Christian Academy | 20.1 |
Regular elementary or secondary | Pre-KG-12 | 197 | 14.1 | Baptist |
| Frostig School | 20.4 |
Special education | 1-12 | 98 | 6.1 | Nonsectarian |
| Faith Christian Academy Of The Cma | 20.6 |
Regular elementary or secondary | KG-12 | 29 | 8.5 | Christian (no specific denomination) |
| Logsdon School | 20.6 |
Special education | 2-12 | 59 | 8.4 | Nonsectarian |
| Armenian Mesrobian School | 20.7 |
Regular elementary or secondary | Pre-KG-12 | 207 | 10.2 | Other |
| Family Life Center Christian Academy | 20.7 |
Regular elementary or secondary | Pre-KG-12 | 18 | 6.0 | Other |
| Bloomington Christian School | 20.7 |
Regular elementary or secondary | Pre-KG-12 | 903 | 14.8 | Church of the Nazarene |
| Villa Esperanza School | 20.8 |
Special education | Pre-KG-Pre-KG | 66 | 6.6 | Nonsectarian |
| La Palma Preschool And Kindergarten | 20.9 |
Montessori | Ungraded-Ungraded | 15 | 5.0 | Nonsectarian |
| Lighthouse Christian Academy | 21.0 |
Regular elementary or secondary | KG-12 | 85 | 9.7 | Pentecostal |
| Uhs Schools, Riverside Formerly Known As Keystone | 21.1 |
Special education | Ungraded-Ungraded | 185 | 10.3 | Nonsectarian |
| Saints Of Glory School | 21.2 |
Regular elementary or secondary | KG-12 | 25 | 4.3 | Christian (no specific denomination) |
| Barbara Dawson Ed Ctr | 21.3 |
Special education | 1-12 | 39 | 7.8 | Nonsectarian |
| Leeway School | 21.3 |
Special education | Ungraded-Ungraded | 90 | 10.0 | Nonsectarian |
| Shiloh Academy | 21.5 |
Regular elementary or secondary | KG-12 | 53 | 2.6 | Christian (no specific denomination) |
| Mountainside Private School | 21.8 |
Regular elementary or secondary | 3-12 | 12 | 9.2 | Nonsectarian |
| Eldorado School/emerson Honors | 21.8 |
Special program emphasis | Pre-KG-12 | 167 | 8.6 | Nonsectarian |
| Polytechnic School | 21.9 |
Regular elementary or secondary | KG-12 | 855 | 9.2 | Nonsectarian |
| Southwestern Academy | 22.0 |
Regular elementary or secondary | 6-12 | 128 | 5.1 | Nonsectarian |
| Acaciawood School | 22.1 |
Regular elementary or secondary | 1-12 | 121 | 8.1 | Nonsectarian |
| Bethel Baptist Academy | 22.2 |
Alternative/other | KG-12 | 153 | 4.5 | Baptist |
| Riverside Christian Schools | 22.2 |
Regular elementary or secondary | Pre-KG-12 | 921 | 19.3 | Christian (no specific denomination) |
| Anaheim Discovery Christian Jr High | 22.3 |
Regular elementary or secondary | 6-12 | 83 | 8.7 | Christian (no specific denomination) |
| Anaheim Discovery Christian Jr/sr High | 22.3 |
Regular elementary or secondary | 6-12 | 83 | 8.5 | Christian (no specific denomination) |
| Sahag-mesrob Armenian Christian School | 22.5 |
Regular elementary or secondary | Pre-KG-12 | 311 | 9.8 | Christian (no specific denomination) |
| Calvary Chapel Christian Academy | 22.7 |
Regular elementary or secondary | KG-12 | 101 | 1.9 | Christian (no specific denomination) |
| Rossier Park School | 22.8 |
Special education | 5-12 | 164 | 10.2 | Nonsectarian |
| Pioneer Baptist School | 22.8 |
Regular elementary or secondary | Pre-KG-12 | 85 | 7.7 | Baptist |
| Almansor Center | 23.1 |
Special education | 1-12 | 109 | 9.9 | Nonsectarian |
| Waverly School | 23.2 |
Regular elementary or secondary | Pre-KG-12 | 297 | 8.8 | Nonsectarian |
| Grace Baptist Academy | 23.3 |
Regular elementary or secondary | KG-12 | 24 | 4.9 | Baptist |
| Grace Christian Schools | 23.3 |
Regular elementary or secondary | KG-12 | 25 | 4.2 | Christian (no specific denomination) |
| The Eirich | 23.4 |
Regular elementary or secondary | 1-11 | 7 | 3.7 | Nonsectarian |
| Westridge School | 23.4 |
Regular elementary or secondary | 4-12 | 523 | 9.1 | Nonsectarian |
| New Harvest Christian School | 23.6 |
Regular elementary or secondary | Pre-KG-12 | 145 | 11.2 | Christian (no specific denomination) |
| Sovereign Grace Academy | 23.8 |
Alternative/other | 1-12 | 12 | 3.3 | Baptist |
| St Monica Academy | 23.8 |
Regular elementary or secondary | 1-12 | 120 | 11.4 | Roman Catholic |
| Immaculate Heart Academy | 24.1 |
Alternative/other | 1-12 | 12 | 1.7 | Roman Catholic |
| Temple Learning Center | 24.2 |
Regular elementary or secondary | Pre-KG-12 | 31 | 10.3 | Christian (no specific denomination) |
| Speech And Language Development Center | 24.3 |
Special education | Pre-KG-12 | 166 | 7.2 | Nonsectarian |
| Trouble Free Educational School | 24.3 |
Regular elementary or secondary | 3-12 | 52 | 26.0 | Nonsectarian |
| Orange County Christian School | 24.4 |
Regular elementary or secondary | Pre-KG-12 | 250 | 13.2 | Church of Christ |
| Big Springs Center & School | 24.5 |
Special education | Ungraded-Ungraded | 15 | 1.9 | Nonsectarian |
| Hillsides Education Center | 24.5 |
Special education | 1-12 | 86 | 9.2 | Nonsectarian |
| Crystal Cathedral Academy | 24.6 |
Special program emphasis | KG-12 | 366 | 12.0 | Other |
| Five Acres School | 24.6 |
Special education | Ungraded-Ungraded | 75 | 7.5 | Nonsectarian |
| The Sycamores School | 24.6 |
Special education | 4-12 | 56 | 11.2 | Nonsectarian |
| Three In One Christian Academy | 24.7 |
Regular elementary or secondary | 1-12 | 9 | 3.5 | Baptist |
| Calvary Chapel Christian School | 24.9 |
Regular elementary or secondary | Pre-KG-12 | 1018 | 18.5 | Other |
| Learning Spot Child Develpoment Center, The | 24.9 |
Early childhood program/child care center | Ungraded-Ungraded | 30 | 10.3 | Nonsectarian |
| Whole Heart Christian Academy | 25.0 |
Alternative/other | 1-12 | 19 | 1.7 | Christian (no specific denomination) |
