Schools in 91761 — Ontario, California: 91761 schools average 2.7 points above the state — but the range is 41.7 points wide.
91761 has 10 ranked schools in Ontario, averaging a Scope Score of 47.6/100 — 2.7 points above the state average of 44.8 (CDE CAASPP 2025). Scores range from 35.1 to 76.8, a 41.7-point spread. 1 school ranks in the 90th percentile or above statewide.
How 91761 schools perform
The top-ranked school is Park View Elementary with a Scope Score of 77 and 44.3% of students exceeding standard.
Schools in 91761 show an average grade 3-to-5 growth of +5.4 percentage points, suggesting these schools are adding real value over time.
Chronic absenteeism across 91761 averages 14.2%, below the state average of 17.9%. CDE CAASPP 2025.
How 91761 compares to nearby zip codes
| Zip | City | Schools | Avg Score | vs 91761 |
|---|---|---|---|---|
| 91761 | Ontario | 10 | Developing 47.6/100 | — |
| 91762 | Ontario | 11 | Developing 46.2/100 | -1.4 |
| 91763 | Montclair | 8 | Developing 50.0/100 | +2.4 |
| 91764 | Ontario | 13 | Developing 42.3/100 | -5.3 |
| 91765 | Diamond Bar | 9 | Solid 67.8/100 | +20.2 |
| 91766 | Pomona | 14 | Developing 37.2/100 | -10.4 |
Source: CDE CAASPP 2025, analyzed by SchoolScope.
School archetypes in 91761
Hidden gems: 6 schools in 91761 are classified as Growth Engine (5) or On the Rise — showing positive growth trajectories that raw proficiency scores alone don't capture. These are schools where students leave with more than they arrived with.
Archetypes are data-driven labels based on Scope Score dimensions. Learn more
All schools in 91761
ranked by Scope Score · 2024–25 CAASPP
| # | School | Exceeded | Score |
|---|---|---|---|
| 1 | Park View Elementary Mountain View Elementary Growth Engine | 44.3% | Strong 77/100 |
| 2 | Liberty Elementary Chino Valley Unified Growth Engine | 26.4% | Solid 53/100 |
| 3 | Online Academy Ontario-Montclair Growth Engine | 22.1% | Solid 51/100 |
| 4 | Bon View Elementary Ontario-Montclair Growth Engine | 12.4% | Developing 47/100 |
| 5 | Colony High Chaffey Joint Union High Building Momentum | 15.8% | Developing 46/100 |
| 6 | Sultana Elementary Ontario-Montclair Growth Engine | 13.8% | Developing 46/100 |
| 7 | Creek View Elementary Mountain View Elementary Building Momentum | 15.9% | Developing 42/100 |
| 8 | Ranch View Elementary Mountain View Elementary On the Rise | 19.3% | Developing 41/100 |
| 9 | Levi H. Dickey Elementary Chino Valley Unified Culture First | 15.6% | Developing 38/100 |
| 10 | Mountain View Elementary Mountain View Elementary Culture First | 10.3% | Developing 35/100 |
Schools in 91761 on the map
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.
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