Elementary Schools in San Dimas, California
San Dimas, California has 8 ranked elementary schools with an average Scope Score of 57.7/100 — 14.0 points above the California state average of 43.8. The highest-scoring school is Arma J. Shull Elementary at 74/100, where 54.0% of students exceed the state standard on the 2025 CAASPP assessment. San Dimas schools average 33.4% exceeded standard (state: 21.6%) — this exceeded-vs-met distinction reveals whether schools push students beyond proficiency or pace toward it. Of 8 schools, 1 High Ceiling stand out for their performance profiles. Chronic absenteeism averages 17.5% (near the state average of 18.1%). Data source: California Department of Education CAASPP 2025, analyzed by SchoolScope.
How San Dimas schools compare
San Dimas's 8 ranked elementary schools average a Scope Score of 57.7 — 14.0 points above the California state average of 43.8. Scores range from 24.0 to 73.8, a 49.8-point spread.
The top-ranked school is Arma J. Shull Elementary with a Scope Score of 74 and 54.0% of students exceeding standard.
High-ceiling schools: San Dimas schools average 33.4% exceeding standard — well above the statewide average of 21.6%. These schools aren't just getting students to proficiency, they're pushing them further.
Chronic absenteeism in San Dimas averages 17.5%, which is near the state average of 18.1%.
How we score · Scope Score weights exceeded (40%), met (22%), growth (15%), absenteeism (10%), suspension (5%), ELPAC (5%), baseline (3%)
School archetypes in San Dimas
Archetypes are data-driven labels based on Scope Score dimensions. Learn more
Schools in San Dimas ranked by Scope Score
| # | School | Exceeded | Score |
|---|---|---|---|
| 1 | Arma J. Shull Elementary Bonita Unified High Ceiling | 54.0% | Strong 74/100 |
| 2 | Ramona Middle Bonita Unified Strong All-Around | 40.7% | Solid 69/100 |
| 3 | San Dimas High Bonita Unified Strong All-Around | 30.4% | Solid 69/100 |
| 4 | Lone Hill Middle Bonita Unified Building Momentum | 33.8% | Solid 62/100 |
| 5 | Gladstone Elementary Bonita Unified Strong All-Around | 37.0% | Solid 60/100 |
| 6 | Allen Avenue Elementary Bonita Unified Culture First | 31.4% | Solid 52/100 |
| 7 | Fred Ekstrand Elementary Bonita Unified Building Momentum | 36.5% | Solid 51/100 |
| 8 | Chaparral High (Continuation) Bonita Unified Building Momentum | 3.3% | Needs Support 24/100 |
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 San Dimas
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.
What Scope Scores can't tell you about San Dimas
- 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
Frequently asked questions
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