Schools in 91765 — Diamond Bar, California
91765 has 9 ranked schools averaging a Scope Score of 70.0 — 26.2 points above the California state average of 43.8. Scores range from 40.2 to 86.0, a 45.8-point spread. 6 schools rank in the 90th percentile or above statewide.
How 91765 schools perform
The top-ranked school is Chaparral Middle with a Scope Score of 86 and 58.3% of students exceeding standard.
High-ceiling zip code: Schools here average 44.5% exceeding standard — well above the statewide average of 21.6%. These schools aren't just meeting proficiency; they're pushing students beyond it.
Chronic absenteeism across 91765 averages 9.0%, above the state average of 18.1%.
How 91765 compares to nearby zip codes
School archetypes in 91765
Hidden gems: 1 school in 91765 is classified as Growth Engine — 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 91765
| # | School | Score | County | Exceeded | Met+ | Absent | Susp. |
|---|---|---|---|---|---|---|---|
| 1 | Chaparral Middle Walnut Valley Unified High Ceiling | 86 | Los Angeles | 58.3% | 81.6% | 3.4% | 0.3% |
| 2 | Diamond Bar High Walnut Valley Unified Strong All-Around | 82 | Los Angeles | 46.3% | 72.3% | 10.9% | 1.0% |
| 3 | Maple Hill Elementary Walnut Valley Unified High Ceiling | 82 | Los Angeles | 60.6% | 82.6% | 4.4% | 0.1% |
| 4 | Pantera Elementary Pomona Unified High Ceiling | 79 | Los Angeles | 52.6% | 76.6% | 4.7% | 0.1% |
| 5 | Evergreen Elementary Walnut Valley Unified Strong All-Around | 74 | Los Angeles | 47.2% | 72.1% | 5.6% | 0.1% |
| 6 | Quail Summit Elementary Walnut Valley Unified High Ceiling | 74 | Los Angeles | 52.3% | 79.3% | 6.9% | 0.5% |
| 7 | Castle Rock Elementary Walnut Valley Unified Building Momentum | 68 | Los Angeles | 42.9% | 71.1% | 6.9% | 0.2% |
| 8 | Armstrong Elementary Pomona Unified Growth Engine | 45 | Los Angeles | 21.4% | 39.9% | 20.9% | 1.8% |
| 9 | Golden Springs Elementary Pomona Unified Building Momentum | 40 | Los Angeles | 18.7% | 50.5% | 17.6% | 1.0% |
Schools in 91765 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.
What Scope Scores can't tell you about 91765
- Class sizes and student-teacher interaction quality
- Quality of arts, music, athletics, and enrichment programs
- Teacher experience, turnover, and professional development
- Campus safety, bullying climate, and social-emotional support
- Parent and community engagement levels
- Quality of special education and gifted programs
- How school zones and enrollment boundaries affect access
Scope Scores measure academic performance and school climate using public data. They are one lens among many. Full methodology