Sonoma Charter
17202 Sonoma Highway, Sonoma, CA 95476-3667
Summary
Sonoma Charter is underperforming.
Reading and math results average to the 52nd percentile among comparable California schools.
Only 43.0% of students met California's reading standard, and it is quickly trending down.
Math is weaker: 31.9% of students met California's math standard, and it is quickly trending down.
Proficiency stats
| Current Reading Proficiency | 43.0% |
| Current Math Proficiency | 31.9% |
| Reading State Rank | 856/1,734 (51st percentile) |
| Math State Rank | 811/1,735 (53rd percentile) |
School information
| Student / Teacher Ratio | 19:1 |
| Student enrollment (2024–25) | 226 |
| Low-Income Students | 108 (47.8%) |
| English Learners | 44 (19.5%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | Yes |
| Magnet school | No |
Test score trends
Reading fell 2.7 points from last year and fell 12.9 points over the full period. Math fell 6.8 points from last year and fell 10.3 points over the full period.
•Math -10.3 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
White and Hispanic or Latino students have the strongest results.
Distribution of Scores by Grade
The share meeting the reading standard ranges from 21.1% to 54.6% across the grades shown. Overall, the school’s reading results rank in the top 50% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 31.2-point reading income gap is nearly twice as wide as the 16.5-point gap at a typical California K–8 school. It widened over the period shown.
•English Learners vs English Native
19.4% of English learners meet the reading standard, compared with 50.6% of English-only students. The gap narrowed as English-learner results rose and English-only results fell.
•Math Proficiency Scores
2026 state test results
Race and Ethnicity
White students have the strongest math results at about 46% proficiency. The other reported groups range from about 19% to 19%.
Distribution of Scores by Grade
The share meeting the math standard ranges from 26.3% to 40.9% across the grades shown. Overall, the school’s math results rank in the top 47% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 25.6-point math income gap is wider than the 15.5-point gap at a typical California K–8 school. It widened over the period shown.
•English Learners vs English Native
9.7% of English learners meet the math standard, compared with 38.8% of English-only students. The gap narrowed as English-learner results rose and English-only results fell.
•Progress as students move up
2023–2026
How we compare income gaps
“Typical” means the median gap across 802 schools for reading and 801 for math. The comparison uses 2026 California K–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 Sonoma Charter compare within the district?
Sonoma Charter is No. 2 in both reading and math proficiency among the 2 K–8 schools in Sonoma Valley Unified with 2026 results.
Explore the district’s schoolsHow does Sonoma Charter rank in California?
Sonoma Charter ranks No. 856 of 1,734 in reading and No. 811 of 1,735 in math for 2026. These proficiency rankings compare California schools in the same grade-level category.
How do low-income students at Sonoma Charter compare within the district?
Low-income students here rank No. 2 in both subjects among 2 K–8 district schools with reportable 2026 results for this group. 28.2% meet the reading standard and 19.7% meet the math standard.
See results by student groupHow does Sonoma Charter compare with other schools in Sonoma County?
Sonoma Charter is No. 10 in both reading and math proficiency among the 18 K–8 schools in Sonoma County with 2026 results.
Explore schools in Sonoma CountyWhich schools should I compare?
Schools serving K–8 in the same district.
| School | Math | Reading |
|---|---|---|
| Sonoma CharterThis school | 31.9% | 43.0% |
| Woodland Star Charter | 46.4% | 53.6% |
