Archie Williams High
1327 Sir Francis Drake Boulevard, San Anselmo, CA 94960-1800
Summary
Archie Williams High is an excellent school.
Reading and math results average to the 93rd percentile among comparable California schools.
83.0% of students met California's reading standard, and it is quickly trending up.
56.0% of students met California's math standard, but it is quickly trending up.
Proficiency stats
| Current Reading Proficiency | 83.0% |
| Current Math Proficiency | 56.0% |
| Reading State Rank | 92/1,596 (94th percentile) |
| Math State Rank | 144/1,596 (91st percentile) |
School information
| Student / Teacher Ratio | 18:1 |
| Student enrollment (2024–25) | 1,141 |
| Low-Income Students | 118 (10.3%) |
| English Learners | 34 (3.0%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | No |
| Magnet school | No |
Test score trends
Reading rose 15.5 points from last year and rose 20.4 points over the full period. Math rose 1.0 points from last year and rose 13.4 points over the full period.
•Math +13.4 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
Most students in every reported group meet the reading standard. White and Two or more races students have the strongest results.
Distribution of Scores by Grade
83.0% of tested students meet the reading standard in the grade shown. Overall, the school’s reading results rank in the top 6% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 34.4-point reading income gap is wider than the 14.7-point gap at a typical California 9–12 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
White students have the strongest math results at about 61% proficiency. The other reported groups range from about 34% to 45%.
Distribution of Scores by Grade
56.1% of tested students meet the math standard in the grade shown. Overall, the school’s math results rank in the top 10% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 31.9-point math income gap is wider than the 14.2-point gap at a typical California 9–12 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.
How we compare income gaps
“Typical” means the median gap across 876 schools for reading and 882 for math. The comparison uses 2026 California 9–12 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 Archie Williams High compare within the district?
Archie Williams High is No. 2 in reading and No. 4 in math proficiency among the 4 9–12 schools in Tamalpais Union High with 2026 results.
Explore the district’s schoolsHow does Archie Williams High rank in California?
Archie Williams High ranks No. 92 of 1,596 in reading and No. 144 of 1,596 in math for 2026. These proficiency rankings compare California schools in the same grade-level category.
How do low-income students at Archie Williams High compare within the district?
Low-income students here rank No. 3 in both subjects among 3 9–12 district schools with reportable 2026 results for this group. 52.2% meet the reading standard and 27.3% meet the math standard.
See results by student groupHow does Archie Williams High compare with other schools in Marin County?
Archie Williams High is No. 2 in reading and No. 4 in math proficiency among the 9 9–12 schools in Marin County with 2026 results.
Explore schools in Marin CountyWhich schools should I compare?
Schools serving 9–12 in the same district.
| School | Math | Reading |
|---|---|---|
| Archie Williams HighThis school | 56.0% | 83.0% |
| Redwood High | 68.2% | 82.1% |
| Tamalpais High | 64.3% | 81.1% |
