Schools in 91773 — San Dimas, California
91773 has 10 ranked schools averaging a Scope Score of 59.6 — 15.8 points above the California state average of 43.8. Scores range from 24.0 to 73.8, a 49.8-point spread. 3 schools rank in the 90th percentile or above statewide.
How 91773 schools perform
The top-ranked school is Arma J. Shull Elementary with a Scope Score of 74 and 54.0% of students exceeding standard.
High-ceiling zip code: Schools here average 35.3% exceeding standard — well above the statewide average of 21.6%. These schools aren't just meeting proficiency; they're pushing students beyond it.
Declining trajectory: Average proficiency drops by 5.5 percentage points from grade 3 to grade 5 across 91773. This pattern in test scores may reflect a variety of factors and is worth examining school by school.
Chronic absenteeism across 91773 averages 16.5%, near the state average of 18.1%.
How 91773 compares to nearby zip codes
School archetypes in 91773
Archetypes are data-driven labels based on Scope Score dimensions. Learn more
All schools in 91773
| # | School | Exceeded | Score |
|---|---|---|---|
| 1 | Arma J. Shull Elementary Bonita Unified High Ceiling | 54.0% | Strong 74/100 |
| 2 | Grace Miller Elementary Bonita Unified Strong All-Around | 46.3% | Strong 74/100 |
| 3 | Ramona Middle Bonita Unified Strong All-Around | 40.7% | Solid 69/100 |
| 4 | San Dimas High Bonita Unified Strong All-Around | 30.4% | Solid 69/100 |
| 5 | Lone Hill Middle Bonita Unified Building Momentum | 33.8% | Solid 62/100 |
| 6 | La Verne Heights Elementary Bonita Unified Solid Base | 39.3% | Solid 61/100 |
| 7 | Gladstone Elementary Bonita Unified Solid Base | 37.0% | Solid 60/100 |
| 8 | Allen Avenue Elementary Bonita Unified Culture First | 31.4% | Solid 52/100 |
| 9 | Fred Ekstrand Elementary Bonita Unified Building Momentum | 36.5% | Solid 51/100 |
| 10 | Chaparral High (Continuation) Bonita Unified Building Momentum | 3.3% | Needs Support 24/100 |
Schools in 91773 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 91773
- 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