Schools in 91740 — Glendora, California: 7 schools. Average score 6.6 points below the state. Here is what that number does — and doesn't — tell you.
91740 has 7 ranked schools in Glendora, averaging a Scope Score of 38.3/100 — 6.6 points below the state average of 44.8 (CDE CAASPP 2025). Scores range from 16.6 to 53.3, a 36.8-point spread.
How 91740 schools perform
The top-ranked school is Sutherland Elementary with a Scope Score of 53 and 34.2% of students exceeding standard.
Average proficiency falls 17.6 percentage points from grade 3 to grade 5 across 91740. This pattern in test scores may reflect a variety of factors and is worth examining school by school.
Chronic absenteeism across 91740 averages 26.7%, above the state average of 17.9%. CDE CAASPP 2025.
How 91740 compares to nearby zip codes
| Zip | City | Schools | Avg Score | vs 91740 |
|---|---|---|---|---|
| 91740 | Glendora | 7 | Developing 38.3/100 | — |
| 91739 | Etiwanda | 9 | Solid 64.9/100 | +26.7 |
| 91741 | Glendora | 6 | Solid 57.4/100 | +19.1 |
| 91737 | Alta Loma | 5 | Solid 59.9/100 | +21.7 |
| 91744 | La Puente | 21 | Developing 36.6/100 | -1.7 |
| 91745 | Hacienda Heights | 13 | Developing 47.1/100 | +8.8 |
Source: CDE CAASPP 2025, analyzed by SchoolScope.
School archetypes in 91740
Archetypes are data-driven labels based on Scope Score dimensions. Learn more
All schools in 91740
ranked by Scope Score · 2024–25 CAASPP
| # | School | Exceeded | Score |
|---|---|---|---|
| 1 | Sutherland Elementary Glendora Unified Culture First | 34.2% | Solid 53/100 |
| 2 | Willow Elementary Charter Oak Unified Building Momentum | 34.3% | Developing 50/100 |
| 3 | Washington Elementary Charter Oak Unified Culture First | 28.8% | Developing 50/100 |
| 4 | Stanton Elementary Glendora Unified Culture First | 17.1% | Developing 46/100 |
| 5 | Oak Knoll Alternative Charter Oak Unified Building Momentum | 6.3% | Needs Support 26/100 |
| 6 | Whitcomb Continuation High Glendora Unified Building Momentum | 1.5% | Needs Support 26/100 |
| 7 | Arrow High (Continuation) Charter Oak Unified Building Momentum | 0.0% | Needs Support 17/100 |
Schools in 91740 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