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Email BoardSonoma Mountain Elementary
1900 Rainier Circle, Petaluma, CA 94954-2543
Summary
Sonoma Mountain Elementary is an excellent school.
Reading and math results average to the 94th percentile among comparable California schools.
80.3% of students met California's reading standard, and it is quickly trending up.
76.9% of students met California's math standard, which is strong statewide and is quickly trending up.
Proficiency stats
| Current Reading Proficiency | 80.3% |
| Current Math Proficiency | 76.9% |
| Reading State Rank | 226/4,657 (95th percentile) |
| Math State Rank | 337/4,657 (93rd percentile) |
School information
| Student / Teacher Ratio | 23:1 |
| Student enrollment (2024–25) | 422 |
| Low-Income Students | 65 (15.4%) |
| English Learners | 7 (1.7%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | Yes |
| Magnet school | No |
Test score trends
Reading rose 1.8 points from last year and rose 11.4 points over the full period. Math rose 4.7 points from last year and rose 12.3 points over the full period.
•Math +12.3 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 Hispanic or Latino students have the strongest results.
Distribution of Scores by Grade
The share meeting the reading standard ranges from 73.3% to 87.5% across the grades shown. Overall, the school’s reading results rank in the top 5% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 3.8-point reading income gap is narrower than the 17.6-point gap at a typical California K–6 school. 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 83% proficiency. The other reported groups range from about 69% to 78%.
Distribution of Scores by Grade
The share meeting the math standard ranges from 66.1% to 87.5% across the grades shown. Overall, the school’s math results rank in the top 8% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 5.3-point math income gap is narrower than the 17.5-point gap at a typical California K–6 school. It narrowed 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 1,479 schools for reading and 1,483 for math. The comparison uses 2026 California K–6 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 Sonoma Mountain Elementary compare within the district?
Sonoma Mountain Elementary is No. 1 in both reading and math proficiency among the 6 K–6 schools in Old Adobe Union with 2026 results.
Explore the district’s schoolsHow does Sonoma Mountain Elementary rank in California?
Sonoma Mountain Elementary ranks No. 226 of 4,657 in reading and No. 337 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 Sonoma Mountain Elementary compare within the district?
Low-income students here rank No. 1 in both subjects among 5 K–6 district schools with reportable 2026 results for this group. 77.6% meet the reading standard and 73.1% meet the math standard.
See results by student groupHow does Sonoma Mountain Elementary compare with other schools in Petaluma?
Sonoma Mountain Elementary is No. 1 in both reading and math proficiency among the 15 K–6 schools in Petaluma with 2026 results.
Explore schools in PetalumaHow does Sonoma Mountain Elementary compare with other schools in Sonoma County?
Sonoma Mountain Elementary is No. 2 in both reading and math proficiency among the 50 K–6 schools in Sonoma County with 2026 results.
Explore schools in Sonoma CountyWhich schools should I compare?
Schools serving K–6 in the same district.
| School | Math | Reading |
|---|---|---|
| Sonoma Mountain ElementaryThis school | 76.9% | 80.3% |
| La Tercera Elementary | 43.9% | 57.8% |
| Loma Vista Immersion Academy | 40.7% | 39.4% |
