Del Mar Middle
105 Avenida Miraflores, Tiburon, CA 94920-1414
Summary
Del Mar Middle is an excellent school.
Reading and math results average to the 97th percentile among comparable California schools.
82.2% of students met California's reading standard, and it is trending up.
78.6% of students met California's math standard, which is strong statewide and is trending up.
Proficiency stats
| Current Reading Proficiency | 82.2% |
| Current Math Proficiency | 78.6% |
| Reading State Rank | 38/1,204 (97th percentile) |
| Math State Rank | 31/1,204 (98th percentile) |
School information
| Student / Teacher Ratio | 12:1 |
| Student enrollment (2024–25) | 359 |
| Low-Income Students | 17 (4.7%) |
| English Learners | 9 (2.5%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | No |
| Magnet school | No |
Test score trends
Reading fell 1.6 points from last year and rose 3.6 points over the full period. Math fell 2.6 points from last year and rose 3.7 points over the full period.
•Math +3.7 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
Most students in every reported group meet the reading standard. Asian and Two or more races students have the strongest results.
Distribution of Scores by Grade
The share meeting the reading standard ranges from 70.3% to 89.7% across the grades shown. Overall, the school’s reading results rank in the top 4% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 48.1-point reading income gap is wider than the 19.5-point gap at a typical California 6–8 school. It widened over the period shown.
•English Learners vs English Native
Results for both language groups are unavailable, so a current reading gap cannot be calculated.
Math Proficiency Scores
2026 state test results
Race and Ethnicity
Asian students have the strongest math results at about 86% proficiency. The other reported groups range from about 64% to 79%.
Distribution of Scores by Grade
The share meeting the math standard ranges from 75.7% to 81.2% across the grades shown. Overall, the school’s math results rank in the top 3% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 38.7-point math income gap is wider than the 19.2-point gap at a typical California 6–8 school. It widened over the period shown.
•English Learners vs English Native
Results for both language groups are unavailable, so a current math gap cannot be calculated.
Progress as students move up
2023–2026
How we compare income gaps
“Typical” means the median gap across 795 schools for reading and 796 for math. The comparison uses 2026 California 6–8 schools with at least 20 tested students in each income group and a reported low-income student population. Each school counts once. Its gap is non-low-income proficiency minus low-income proficiency, including negative gaps. California state test data
Understanding this school
How does Del Mar Middle rank in California?
Del Mar Middle ranks No. 38 of 1,204 in reading and No. 31 of 1,204 in math for 2026. These proficiency rankings compare California schools in the same grade-level category.
How does Del Mar Middle compare with other schools in Marin County?
Del Mar Middle is No. 2 in reading and No. 1 in math proficiency among the 8 6–8 schools in Marin County with 2026 results.
Explore schools in Marin County