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Email BoardCobb (William L.) Elementary
2725 California Street, San Francisco, CA 94115-2513
Summary
Cobb (William L.) Elementary is underperforming.
Reading and math results average to the 48th percentile among comparable California schools.
Only 46.8% of students met California's reading standard, but it is trending up.
Math is weaker: 33.3% of students met California's math standard, and it is trending down.
Proficiency stats
| Current Reading Proficiency | 46.8% |
| Current Math Proficiency | 33.3% |
| Reading State Rank | 2,096/4,657 (55th percentile) |
| Math State Rank | 2,726/4,657 (41st percentile) |
School information
| Student / Teacher Ratio | 21:1 |
| Student enrollment (2024–25) | 134 |
| Low-Income Students | 94 (70.1%) |
| English Learners | 14 (10.4%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | No |
| Magnet school | No |
Test score trends
Reading rose 8.8 points from last year and rose 6.4 points over the full period. Math fell 1.1 points from last year and fell 7.1 points over the full period.
•Math -7.1 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
Hispanic or Latino and Two or more races students have the strongest results.
Distribution of Scores by Grade
The share meeting the reading standard ranges from 30.0% to 57.1% across the grades shown. Overall, the school’s reading results rank in the top 46% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
Low-income students are 6.7 points ahead in reading. It narrowed 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
Two or more races students have the strongest math results at about 38% proficiency. The other reported groups range from about 15% to 38%.
Distribution of Scores by Grade
The share meeting the math standard ranges from 10.0% to 52.4% across the grades shown. Overall, the school’s math results rank No. 2,726 of 4,657 among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 9.8-point math income gap is narrower than the 20.0-point gap at a typical California K–5 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 1,832 schools for reading and 1,839 for math. The comparison uses 2026 California K–5 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 Cobb (William L.) Elementary compare within the district?
Cobb (William L.) Elementary is No. 32 in reading and No. 38 in math proficiency among the 62 K–5 schools in San Francisco Unified with 2026 results.
Explore the district’s schoolsHow does Cobb (William L.) Elementary rank in California?
Cobb (William L.) Elementary ranks No. 2,096 of 4,657 in reading and No. 2,726 of 4,657 in math for 2026. These proficiency rankings compare California schools in the same grade-level category.
How do low-income students at Cobb (William L.) Elementary compare within the district?
Low-income students here rank No. 20 in reading and No. 31 in math among 61 K–5 district schools with reportable 2026 results for this group. 48.8% meet the reading standard and 30.2% meet the math standard.
See results by student groupHow does Cobb (William L.) Elementary compare with other schools in San Francisco?
Cobb (William L.) Elementary is No. 32 in reading and No. 38 in math proficiency among the 62 K–5 schools in San Francisco with 2026 results.
Explore schools in San FranciscoHow does Cobb (William L.) Elementary compare with other schools in San Francisco County?
Cobb (William L.) Elementary is No. 32 in reading and No. 38 in math proficiency among the 62 K–5 schools in San Francisco County with 2026 results.
Explore schools in San Francisco CountyWhich schools should I compare?
Schools serving K–5 in the same district.
| School | Math | Reading |
|---|---|---|
| Cobb (William L.) ElementaryThis school | 33.3% | 46.8% |
| Alamo Elementary | 64.6% | 66.7% |
| Alvarado Elementary | 51.6% | 59.4% |
