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Email BoardMill Valley Middle
425 Sycamore Avenue, Mill Valley, CA 94941-2231
Summary
Mill Valley Middle is an excellent school.
Reading and math results average to the 96th percentile among comparable California schools.
83.8% of students met California's reading standard, and it is trending up slightly.
72.3% of students met California's math standard, which is strong statewide but is trending down.
Proficiency stats
| Current Reading Proficiency | 83.8% |
| Current Math Proficiency | 72.3% |
| Reading State Rank | 27/1,204 (98th percentile) |
| Math State Rank | 67/1,204 (95th percentile) |
School information
| Student / Teacher Ratio | 16:1 |
| Student enrollment (2024–25) | 721 |
| Low-Income Students | 45 (6.2%) |
| English Learners | 20 (2.8%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | No |
| Magnet school | No |
Test score trends
Reading rose 2.1 points from last year and rose 1.9 points over the full period. Math fell 2.4 points from last year and fell 3.5 points over the full period.
•Math -3.5 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 White students have the strongest results.
Distribution of Scores by Grade
The share meeting the reading standard ranges from 81.8% to 86.7% across the grades shown. Overall, the school’s reading results rank in the top 3% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 32.5-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
0.0% of English learners meet the reading standard, compared with 87.1% of English-only students. The gap widened as English-learner results fell and English-only results rose.
•Math Proficiency Scores
2026 state test results
Race and Ethnicity
Asian students have the strongest math results at about 79% proficiency. The other reported groups range from about 52% to 74%.
Distribution of Scores by Grade
The share meeting the math standard ranges from 68.7% to 75.9% across the grades shown. Overall, the school’s math results rank in the top 6% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 22.1-point math income gap is slightly 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
7.1% of English learners meet the math standard, compared with 74.7% of English-only students. The gap widened as English-learner results fell and English-only results fell.
•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 Mill Valley Middle rank in California?
Mill Valley Middle ranks No. 27 of 1,204 in reading and No. 67 of 1,204 in math for 2026. These proficiency rankings compare California schools in the same grade-level category.
How does Mill Valley Middle compare with other schools in Marin County?
Mill Valley Middle is No. 1 in reading and No. 3 in math proficiency among the 8 6–8 schools in Marin County with 2026 results.
Explore schools in Marin County