Elementary Schools in Ontario, California: Ontario schools average near the state. The 45.4-point spread is where the choice actually lives.
Ontario, California has 26 ranked elementary schools with an average Scope Score of 46.0/100 — within 1.1 points of the state average of 44.8. The highest-scoring school is Park View Elementary at 77/100, where 44.3% of students exceed the state standard on the 2025 CAASPP assessment. Ontario schools average 16.9% exceeded standard (state: 21.3%) — this exceeded-vs-met distinction reveals whether schools push students beyond proficiency or pace toward it. Chronic absenteeism averages 11.2% (below the state average of 17.9%). Data source: California Department of Education CAASPP 2025, analyzed by SchoolScope.
| Level | Schools | Avg Score | Exceeded | vs State |
|---|---|---|---|---|
| Elementary | 26 | Developing 46.0/100 | 16.9% | +1.1 |
| High | 5 | Developing 43.0/100 | 19.2% | -0.7 |
| Middle | 2 | Developing 34.2/100 | 9.3% | -8.4 |
How Ontario schools compare
Ontario has 26 ranked elementary schools with an average Scope Score of 46.0/100 — within 1.1 points of the state average of 44.8 (CDE CAASPP 2025).
The top-ranked school is Park View Elementary with a Scope Score of 77 and 44.3% of students exceeding standard.
Chronic absenteeism in Ontario averages 11.2% — below the state average of 17.9%.
How we score · Weighted composite of test performance, growth, and school climate · Full weights on the methodology page
School archetypes in Ontario
Archetypes are data-driven labels based on Scope Score dimensions. Learn more
Every school in Ontario
ranked by Scope Score · 2024–25 CAASPP
| # | School | Exceeded | Score |
|---|---|---|---|
| 1 | Park View Elementary Mountain View Elementary Strong All-Around | 44.3% | Strong 77/100 |
| 2 | Edison Elementary Ontario-Montclair Strong All-Around | 36.4% | Solid 63/100 |
| 3 | Chaffey District Online High Chaffey Joint Union High Building Momentum | 42.6% | Solid 55/100 |
| 4 | Elderberry Elementary Ontario-Montclair Building Momentum | 22.8% | Solid 54/100 |
| 5 | Corona Elementary Ontario-Montclair Culture First | 24.1% | Solid 53/100 |
| 6 | Liberty Elementary Chino Valley Unified Building Momentum | 26.4% | Solid 53/100 |
| 7 | Online Academy Ontario-Montclair Culture First | 22.1% | Solid 51/100 |
| 8 | Ontario High Chaffey Joint Union High Building Momentum | 19.6% | Solid 50/100 |
| 9 | Hawthorne Elementary Ontario-Montclair Building Momentum | 15.4% | Solid 50/100 |
| 10 | Vista Grande Elementary Ontario-Montclair Culture First | 22.3% | Developing 49/100 |
| 11 | Central Language Academy Ontario-Montclair Building Momentum | 13.9% | Developing 49/100 |
| 12 | Vineyard Elementary Ontario-Montclair Culture First | 14.8% | Developing 48/100 |
| 13 | Bon View Elementary Ontario-Montclair Culture First | 12.4% | Developing 47/100 |
| 14 | El Camino Elementary Ontario-Montclair Culture First | 16.0% | Developing 47/100 |
| 15 | Colony High Chaffey Joint Union High Building Momentum | 15.8% | Developing 46/100 |
| 16 | Sultana Elementary Ontario-Montclair Culture First | 13.8% | Developing 46/100 |
| 17 | Lincoln Elementary Ontario-Montclair Culture First | 14.6% | Developing 46/100 |
| 18 | Chaffey High Chaffey Joint Union High Building Momentum | 16.7% | Developing 44/100 |
| 19 | Euclid Elementary Ontario-Montclair Culture First | 11.8% | Developing 43/100 |
| 20 | Mission Elementary Ontario-Montclair Culture First | 10.6% | Developing 43/100 |
| 21 | Creek View Elementary Mountain View Elementary Building Momentum | 15.9% | Developing 42/100 |
| 22 | Ranch View Elementary Mountain View Elementary Building Momentum | 19.3% | Developing 41/100 |
| 23 | Richard Haynes Elementary Ontario-Montclair Culture First | 11.2% | Developing 39/100 |
| 24 | Berlyn Elementary Ontario-Montclair Building Momentum | 8.5% | Developing 39/100 |
| 25 | Levi H. Dickey Elementary Chino Valley Unified Culture First | 15.6% | Developing 38/100 |
| 26 | Del Norte Elementary Ontario-Montclair Culture First | 10.4% | Developing 38/100 |
| 27 | Mariposa Elementary Ontario-Montclair Culture First | 10.0% | Developing 38/100 |
| 28 | Ray Wiltsey Middle Ontario-Montclair Building Momentum | 10.0% | Developing 36/100 |
| 29 | Mountain View Elementary Mountain View Elementary Culture First | 10.3% | Developing 35/100 |
| 30 | Arroyo Elementary Ontario-Montclair Culture First | 8.5% | Developing 35/100 |
| 31 | Vina Danks Middle Ontario-Montclair Building Momentum | 8.5% | Developing 32/100 |
| 32 | Ontario Center Cucamonga Elementary Building Momentum | 6.8% | Developing 31/100 |
| 33 | Valley View High (Continuation) Chaffey Joint Union High Building Momentum | 1.3% | Needs Support 19/100 |
Data source: California Department of Education · CAASPP 2024-25 · Methodology
Scores are SchoolScope's analysis of public data, not official CDE ratings. They represent one way of interpreting test results and should not be the sole basis for school decisions.
Private Schools in Ontario
Private schools don't participate in California's standardized testing (CAASPP) and cannot be scored or ranked. Showing enrollment, student-teacher ratio, and affiliation where available.
Numbers tell you whether students are clearing the bar. A school visit tells you whether they're happy doing it. These metrics are intentionally missing from the Scope Score: class sizes and student-teacher interaction quality; arts, music, athletics, and enrichment programs; teacher experience and turnover; campus safety and social-emotional support; parent and community engagement; quality of special education and gifted programs; how school zones and enrollment boundaries affect access. Full methodology