Sonoma Mountain Elementary: More than half of kids exceed the standard. But this year's 5th graders test below its 3rd graders.
Sonoma Mountain is one of the strongest elementary schools in Petaluma by raw achievement. The catch worth understanding: the cohort doesn't gain ground year-over-year.
| Scope | % Exceeded | % Met+ | Growth | Absence | Suspension | |
|---|---|---|---|---|---|---|
| This school | 68 | 51% | 79% | -14.5 | 6.2% | 0.1% |
| CA average · Elementary School | 45 | 21% | 43% | -2.9 | 17.9% | 1.6% |
Sonoma Mountain Elementary scores 68 of 100 on SchoolScope's Scope Score — the 90th percentile of 5,744 California elementary schools (CDE CAASPP 2025).
Measures test performance, attendance, and climate — not arts, community, or your kid. How we score →
🌱 Building Momentum — This label means the data doesn't clearly sort the school one way or the other — ask what the school is proud of, and what it's working on.
Most rating sites would stop at “79% proficient” and call it done. Sonoma Mountain deserves a closer read. It sits at the 90th percentile of 5,744 California elementary schools — but the ranking is the least interesting thing on this page.
The headline number: 50.7% of students scored in the top band on the state test. The California average is 21.3%.
As a charter, Sonoma Mountain enrolls by application rather than address. That changes how you get in, but it doesn't change the score.
The seven-year arc
Climbed from the 79th to the 90th percentile since 2019 — past roughly 600 elementary schools.
The pandemic drop is behind this school: 79% of students meet the standard today, above the 63% who did in 2019.
| Grade | 2019 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Grade 3 | 59% | 63% | 84% | 73% | 88% |
| Grade 4 | 63% | 77% | 64% | 82% | 80% |
| Grade 5 | 65% | 58% | 72% | 55% | 80% |
| Grade 6 | 63% | 63% | 63% | 67% | 67% |
| Grade | 2019 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Grade 3 | 60% | 55% | 82% | 77% | 86% |
| Grade 4 | 80% | 73% | 64% | 80% | 80% |
| Grade 5 | 49% | 47% | 49% | 40% | 64% |
| Grade 6 | 70% | 49% | 54% | 62% | 59% |
The story this school is actually telling
of students scored in the top band on the state test. The California average is 21.3%.
proficiency runs 87% in this year's grade 3 against 72% in its grade 5. The state average rises by +4.5pp over the same span.
The school, grade by grade
ELA · CAASPP 2024–25Different students, same year — each bar is one grade's proficiency mix.
The honest read: the share exceeding falls 17.0pp across grades; the floor slips 7.5pp. The state average rises 4.5pp over the same span. The school's 5th graders aren't posting a wider lead than its 3rd graders. One question worth asking on a tour: are the strongest students being pushed, or coasting? A school visit and conversation with teachers will tell you more than this number.
The 5 things our score weighs
Ask the principal what changes between grade 3 and grade 5. Ask who teaches the older grades, and what the school does when a child starts falling behind.
- Ask what changes between grade 3 and grade 5 here, and who teaches the older kids.
- Ask whether the tour can step into a working classroom — watch how the teacher handles a student who's stuck.
- Ask to tour while school's in session, and notice how hallways and transitions feel — culture shows up between classes, not just in them.
- Ask how the school communicates with families when a child starts to struggle.
- Ask what a typical day looks like for a new student in the first few weeks.
How every group of students does here
At Sonoma Mountain Elementary in Petaluma, 82.5% of white students met or exceeded the ELA standard in 2025, compared to 67.9% district-wide and 61.8% statewide. Sonoma Mountain Elementary outperforms its district average for white students by 14.6 percentage points in ELA. Other subgroups: White students (75.5% Math proficient). Data source: California Department of Education, CAASPP 2024-25. 154 students tested.
7 of 13 student groups here are too small to report — a privacy protection, not a gap.
Change in proficiency from the lowest tested grade — which groups gain ground the longer they stay. Groups with fewer than 10 tested students per grade are not shown.
Showing up, and staying in class
Grades 4–6 students miss school at roughly twice the rate of TK/K students (7.7% vs 4.0%). Chronic absence here concentrates in the upper grades.
The people teaching here
What gets spent here
$430 per student arrives as federal Title funding — a measure of concentrated need, not school quality.
The district's current expense of education per student, from CDE's annual SACS filing — the freshest district spending figure the state publishes.
District-level, from the district's own SACS general-ledger filing — school-by-school breakdowns aren't published by the state.
Source: NCES F-33 · Full district breakdown →
The neighborhood it serves
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2024) · ZIP-level
Transitional kindergarten is offered here — confirmed by actual Census Day enrollment, not just the listed grade span.
On the state's science test (CAST), 61% met or exceeded the standard — science is tested in grades 5 and 8 but never enters the Scope Score.
Frequently asked questions
Is Sonoma Mountain Elementary a good elementary school?
What are Sonoma Mountain Elementary's CAASPP test scores?
How does Sonoma Mountain Elementary rank in California?
Is Sonoma Mountain Elementary getting better or worse?
What is the attendance and school culture like at Sonoma Mountain Elementary?
How does Sonoma Mountain Elementary compare to other schools in Petaluma?
How does Sonoma Mountain Elementary serve low-income and underrepresented students?
Your other options
Private alternatives nearby
Private schools within ~10 miles. These schools do not participate in state testing and cannot be scored or ranked.
Every number on this page
Score factors, grade-level breakdowns, subgroup proficiency, and peer comparisons.
| ELA | Tested | EXC | MET | NEAR | NOT | MET+ | +/CA |
|---|---|---|---|---|---|---|---|
| Grade 3 | 56 | 64% | 23% | 13% | 0% | 88% | +44 |
| Grade 4 | 54 | 52% | 28% | 11% | 9% | 80% | +35 |
| Grade 5 | 55 | 47% | 33% | 9% | 11% | 80% | +32 |
| Grade 6 | 54 | 35% | 31% | 17% | 17% | 67% | +20 |
| Math | Tested | EXC | MET | NEAR | NOT | MET+ | +/CA |
|---|---|---|---|---|---|---|---|
| Grade 3 | 56 | 64% | 21% | 11% | 4% | 86% | +40 |
| Grade 4 | 54 | 39% | 41% | 17% | 4% | 80% | +38 |
| Grade 5 | 56 | 38% | 27% | 29% | 7% | 64% | +29 |
| Grade 6 | 54 | 37% | 22% | 20% | 20% | 59% | +24 |
| Science (CAST) | Tested | EXC | MET | NEAR | NOT |
|---|---|---|---|---|---|
| Grade 5/8/11 | 56 | 25% | 36% | 38% | 2% |
CAST is tested in grades 5, 8, and once in high school — not annually. Not part of the Scope Score.
| Subgroup · ELA | Tested | MET+ | vs district | vs CA |
|---|---|---|---|---|
| White | 154 | 82.5% | +15 | +21 |
| School | Dist | Scope | EXC | MET+ | Growth | Susp |
|---|---|---|---|---|---|---|
| Sonoma Mountain Elementary ← | — | 68 | 50.7% | 79.5% | −14.5 | 0.1% |
| Meadow Elementary | 0.9 mi | 68 | 50.4% | 76.5% | −15.3 | 0.6% |
| Mary Collins Charter School at Cherry Valley | 2.1 mi | 63 | 25.3% | 54.7% | +8.4 | 2.0% |
| Loma Vista Immersion Academy | 0.9 mi | 50 | 18.1% | 40.6% | +7.3 | 0.7% |
| California average | — | 45 | 21.3% | 42.7% | −2.9 | 1.6% |
| Year | Scope | Pctile | Rank | Exc | Met+ | Absent | Susp | Growth |
|---|---|---|---|---|---|---|---|---|
| 2019 | 59 | 79 | #1170 | 33.4% | 62.6% | 2.7% | 1.1% | -2.2pp |
| 2022 | 54 | 82 | #1051 | 33.6% | 62.3% | 14.3% | 1.5% | -6.1pp |
| 2023 | 55 | 79 | #1205 | 38.5% | 69.0% | 9.6% | 0.2% | -22.8pp |
| 2024 | 61 | 83 | #962 | 40.9% | 67.8% | 8.7% | 0.3% | -27.7pp |
| 2025 | 68 | 90 | #555 | 50.7% | 79.5% | 6.2% | 0.1% | -14.5pp |
| Group | 2019 | 2025 | Δ |
|---|---|---|---|
| Female | 2.7% | 6.5% | +3.8pp |
| Male | 2.4% | 3.8% | +1.4pp |
| Asian | 0.0% | 12.5% | +12.5pp |
| Hispanic/Latino | 5.3% | 6.3% | +1.0pp |
| Two or More Races | 0.0% | 2.3% | +2.3pp |
| Students with Disabilities | 3.5% | 8.5% | +5.0pp |
| English Learners | 7.4% | — | — |
| Socioeconomically Disadvantaged | 3.4% | 5.9% | +2.5pp |
| All Students | 2.5% | 5.1% | +2.6pp |
SchoolScope scores and verdicts are our interpretation of public California Department of Education data — independent analysis, not an official rating. How we analyze · Request a correction