Heartwood Charter
170 Liberty School Road, Petaluma, CA 94952
Summary
Heartwood Charter is underperforming.
Reading and math results average to the 69th percentile among comparable California schools.
52.3% of students met California's reading standard, but it is slowly trending down.
Math is weaker: 40.5% of students met California's math standard, but it is trending up slightly.
Proficiency stats
| Current Reading Proficiency | 52.3% |
| Current Math Proficiency | 40.5% |
| Reading State Rank | 534/1,734 (69th percentile) |
| Math State Rank | 535/1,735 (69th percentile) |
School information
| Student / Teacher Ratio | 23:1 |
| Student enrollment (2024–25) | 739 |
| Low-Income Students | 266 (36.0%) |
| English Learners | 8 (1.1%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | Yes |
| Magnet school | No |
Test score trends
Reading fell 3.9 points from last year and fell 3.7 points over the full period. Math rose 3.7 points from last year and rose 2.3 points over the full period.
•Math +2.3 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
White and Asian students have the strongest results.
Distribution of Scores by Grade
The share meeting the reading standard ranges from 47.2% to 64.4% across the grades shown. Overall, the school’s reading results rank in the top 31% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 23.6-point reading income gap is wider than the 11.6-point gap at a typical California K–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
Asian students have the strongest math results at about 62% proficiency. The other reported groups range from about 33% to 43%.
Distribution of Scores by Grade
The share meeting the math standard ranges from 28.4% to 52.5% across the grades shown. Overall, the school’s math results rank in the top 31% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 11.9-point math income gap is slightly wider than the 10.8-point gap at a typical California K–12 school. It narrowed slightly 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 249 schools for reading and 251 for math. The comparison uses 2026 California K–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 Heartwood Charter rank in California?
Heartwood Charter ranks No. 534 of 1,734 in reading and No. 535 of 1,735 in math for 2026. These proficiency rankings compare California schools in the same grade-level category.
How does Heartwood Charter compare with other schools in Petaluma?
Heartwood Charter is No. 1 in both reading and math proficiency among the 2 K–12 schools in Petaluma with 2026 results.
Explore schools in PetalumaHow does Heartwood Charter compare with other schools in Sonoma County?
Heartwood Charter is No. 2 in reading and No. 3 in math proficiency among the 8 K–12 schools in Sonoma County with 2026 results.
Explore schools in Sonoma CountyWhich schools should I compare?
Schools serving K–12 in the same district or city.
| School | Math | Reading |
|---|---|---|
| Heartwood CharterThis school | 40.5% | 52.3% |
| South County Consortium | 15.0% | 13.6% |
