Stanley Mosk Elementary: No single number tells this school's story. Here's the honest picture.
Stanley Mosk posts 41% meeting the standard and 17.1% exceeding it, against 43% and 21.3% statewide. The gaps and the bright spots below are the real read.
| Scope | % Exceeded | % Met+ | Growth | Absence | Suspension | |
|---|---|---|---|---|---|---|
| This school | 43 | 17% | 41% | +1.3 | 13.9% | 0.3% |
| CA average · Elementary School | 45 | 21% | 43% | -2.9 | 17.9% | 1.6% |
Stanley Mosk Elementary scores 43 of 100 on SchoolScope's Scope Score — the 51st 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 →
🤝 Culture First — Ask whether the low absenteeism and suspension numbers come from what the school does or from the community it serves — both can produce the same numbers, and only a visit tells you which.
Most rating sites would stop at “41% proficient” and call it done. Stanley Mosk deserves a closer read. The school sits in Winnetka, where four in five students qualify for free or reduced lunch — and reading the numbers without that context misreads the school.
The seven-year arc
Climbed from the 31st to the 51st percentile since 2019 — past roughly 1000 elementary schools.
The pandemic drop is behind this school: 41% of students meet the standard today, above the 37% who did in 2019.
| Grade | 2019 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Grade 3 | 44% | 43% | 34% | 35% | 30% |
| Grade 4 | 34% | 37% | 43% | 36% | 56% |
| Grade 5 | 45% | 51% | 37% | 38% | 39% |
| Grade | 2019 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Grade 3 | 44% | 44% | 31% | 37% | 39% |
| Grade 4 | 34% | 31% | 36% | 37% | 50% |
| Grade 5 | 23% | 29% | 26% | 27% | 32% |
The story this school is actually telling
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 rises 4.5pp across grades; the floor rises 9.7pp. The state average rises 4.5pp over the same span. Kids here gain ground the longer they stay — the pattern you want to see. A school visit and conversation with teachers will tell you more than this number.
The 6 things our score weighs
Ask what the school is working on next. Strong numbers tell you where a school is, not where it's going.
- 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 Stanley Mosk Elementary in Winnetka, 40.3% of low-income students met or exceeded the ELA standard in 2025, compared to 40.9% district-wide and 38.2% statewide. Stanley Mosk Elementary trails its district average for low-income students by 0.6 percentage points in ELA. Other subgroups: Low-Income students (39.3% Math proficient); Hispanic students (37.5% ELA proficient). The largest proficiency gap is 32.5 percentage points for english learner students. Data source: California Department of Education, CAASPP 2024-25. 191 students tested.
6 of 14 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.
Low-income student ELA proficiency rises by 12.1pp from grade 3 to grade 5 at this school. District average: +4.5pp.
Showing up, and staying in class
TK/K students miss school at roughly twice the rate of Grades 4–6 students (19.1% vs 10.9%). Chronic absence here concentrates in the earliest grades — worth asking how the school works with new families on attendance.
Where the path goes
The path below follows attendance boundaries — scores shown for each next step.
Feeder patterns derived from NCES attendance boundary data. Boundaries are approximate and may have changed — verify with your school district for current assignments.
The people teaching here
Pay is set by the district, not the school.
What gets spent here
$2,732 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), 27% met or exceeded the standard — science is tested in grades 5 and 8 but never enters the Scope Score.
Frequently asked questions
Is Stanley Mosk Elementary a good elementary school?
What are Stanley Mosk Elementary's CAASPP test scores?
How does Stanley Mosk Elementary rank in California?
Is Stanley Mosk Elementary getting better or worse?
What is the attendance and school culture like at Stanley Mosk Elementary?
How does Stanley Mosk Elementary compare to other schools in Winnetka?
How does Stanley Mosk Elementary serve low-income and underrepresented students?
Your other options
Nearby Elementary Schools
3 within ~3 mi · avg 59
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 | 81 | 14% | 16% | 38% | 32% | 30% | −14 |
| Grade 4 | 77 | 23% | 32% | 21% | 23% | 56% | +11 |
| Grade 5 | 61 | 18% | 21% | 18% | 43% | 39% | −9 |
| Math | Tested | EXC | MET | NEAR | NOT | MET+ | +/CA |
|---|---|---|---|---|---|---|---|
| Grade 3 | 84 | 17% | 23% | 25% | 36% | 39% | −6 |
| Grade 4 | 80 | 16% | 34% | 33% | 18% | 50% | +8 |
| Grade 5 | 62 | 15% | 18% | 29% | 39% | 32% | −3 |
| Science (CAST) | Tested | EXC | MET | NEAR | NOT |
|---|---|---|---|---|---|
| Grade 5/8/11 | 62 | 11% | 16% | 48% | 24% |
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 |
|---|---|---|---|---|
| Socioeconomically Disadvantaged | 191 | 40.3% | −1 | +2 |
| Hispanic/Latino | 152 | 37.5% | −4 | −1 |
| English Learners | 36 | 8.3% | +1 | −2 |
| School | Dist | Scope | EXC | MET+ | Growth | Susp |
|---|---|---|---|---|---|---|
| Stanley Mosk Elementary ← | — | 43 | 17.1% | 41.1% | +1.3 | 0.3% |
| Wilbur Charter for Enriched Academics | 3 mi | 62 | 34.5% | 62.5% | +10.3 | 0.1% |
| Village Charter Academy | 2 mi | 59 | 28.1% | 56.9% | −14.0 | 0.2% |
| Blythe Street Elementary | 1.7 mi | 58 | 15.9% | 39.7% | −8.3 | 0.1% |
| California average | — | 45 | 21.3% | 42.7% | −2.9 | 1.6% |
| Year | Scope | Pctile | Rank | Exc | Met+ | Absent | Susp | Growth |
|---|---|---|---|---|---|---|---|---|
| 2019 | 35 | 31 | #3810 | 15.5% | 37.4% | 17.3% | 0.5% | -10.0pp |
| 2022 | 38 | 55 | #2575 | 13.4% | 39.1% | 35.8% | 0.0% | -4.0pp |
| 2023 | 35 | 39 | #3468 | 16.0% | 34.4% | 33.2% | 0.6% | -1.5pp |
| 2024 | 38 | 39 | #3525 | 12.8% | 35.0% | 16.6% | 0.1% | -3.3pp |
| 2025 | 43 | 51 | #2836 | 17.1% | 41.1% | 13.9% | 0.3% | +1.3pp |
| Group | 2019 | 2025 | Δ |
|---|---|---|---|
| Female | 14.1% | 12.1% | -2.0pp |
| Male | 21.2% | 15.0% | -6.2pp |
| Asian | 7.3% | 4.2% | -3.1pp |
| Black/African American | 34.6% | 25.0% | -9.6pp |
| White | 9.5% | — | — |
| Hispanic/Latino | 18.0% | 14.4% | -3.6pp |
| Students with Disabilities | 27.0% | 24.3% | -2.7pp |
| English Learners | 20.7% | 11.9% | -8.8pp |
| Socioeconomically Disadvantaged | 18.6% | 14.5% | -4.1pp |
| All Students | 17.4% | 13.6% | -3.8pp |
| Filipino | — | 18.5% | — |
| Two or More Races | — | 0.0% | — |
| Homeless | — | 21.7% | — |
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