JCS - Mountain Oaks: The score is strong. The trajectory is stronger.
JCS - Mountain Oaks pairs 62% proficiency with gains that hold up when the same students are tracked two years apart — the rare school that posts both.
JCS - Mountain Oaks scores 59 of 100 on SchoolScope's Scope Score — the 81st 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 →
Most rating sites would stop at “62% proficient” and call it done. JCS - Mountain Oaks deserves a closer read. The school sits in Encinitas, where one in four students qualify for free or reduced lunch — and reading the numbers without that context misreads the school.
JCS - Mountain Oaks's low-income kids hit 86.7% proficiency in ELA — a number the same group reaches at 38.2% statewide. If you're trying to read past zip-code-driven test scores, that's the signal worth weighing.
As a charter, JCS - Mountain Oaks enrolls by application, not address — the score reads the same, the enrollment path doesn't.
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 1.9pp across grades; the floor rises 33.5pp. 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 5 things our score weighs
Ask what changed — new curriculum, new principal, new program. Momentum has a cause, and a visit will find it.
Where the path goes
The path below follows attendance boundaries — scores shown for each next step.
Estimated K-12 path based on district and proximity. Actual attendance zones may differ. Contact your school district for official feeder information.
Your other options
Nearby Elementary Schools
3 within ~3 mi · avg 73
Nearby High Schools
2 within ~3 mi · avg 53
Private alternatives nearby
Private schools within ~10 miles. These schools do not participate in state testing and cannot be scored or ranked.
The community around it
Student demographics
1 more gap by subject
Subgroups with fewer than 15 students are excluded for privacy. Gaps of less than 3 percentage points are not shown.
Weighted average across tested grades. Subgroups with fewer than 15 students excluded. Data: CDE CAASPP 2024-25.
Subgroup Growth by Grade
Subgroups with fewer than 10 tested students per grade are not shown.
Funding Breakdown
Neighborhood Context
Whole Child
Source: CDE SARC, 2024-25
For the data nerdsEvery number on this page
Score factors, grade-level breakdowns, subgroup proficiency, and peer comparisons.
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 | 24 | 29% | 17% | 38% | 17% | 46% | +2 |
| Grade 4 | 27 | 41% | 30% | 22% | 7% | 70% | +26 |
| Grade 5 | 29 | 31% | 48% | 14% | 7% | 79% | +31 |
| Grade 6 | 43 | 33% | 42% | 19% | 7% | 74% | +28 |
| Grade 7 | 33 | 58% | 27% | 12% | 3% | 85% | +37 |
| Grade 8 | 22 | 32% | 45% | 14% | 9% | 77% | +31 |
| Math | Tested | EXC | MET | NEAR | NOT | MET+ | +/CA |
|---|---|---|---|---|---|---|---|
| Grade 3 | 24 | 29% | 25% | 33% | 13% | 54% | +8 |
| Grade 4 | 27 | 26% | 33% | 30% | 11% | 59% | +18 |
| Grade 5 | 29 | 45% | 21% | 24% | 10% | 66% | +30 |
| Grade 6 | 43 | 47% | 33% | 14% | 7% | 79% | +44 |
| Grade 7 | 32 | 53% | 34% | 9% | 3% | 88% | +54 |
| Grade 8 | 22 | 23% | 41% | 18% | 18% | 64% | +31 |
| Science (CAST) | Tested | EXC | MET | NEAR | NOT |
|---|---|---|---|---|---|
| Grade 5/8/11 | 51 | 22% | 35% | 41% | 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 |
|---|---|---|---|---|
| Socioeconomically Disadvantaged | 15 | 86.7% | +52 | +48 |
| White | 122 | 72.9% | +24 | +11 |
| School | Dist | Scope | EXC | MET+ | Growth | Susp |
|---|---|---|---|---|---|---|
| JCS - Mountain Oaks ← | — | 59 | 33.5% | 62.4% | +22.4 | 0.8% |
| El Camino Creek Elementary | 2.5 mi | 79 | 53.4% | 87.5% | −9.0 | 0.1% |
| La Costa Heights Elementary | 3.2 mi | 73 | 46.5% | 74.4% | +3.6 | 0.1% |
| Ada W. Harris Elementary | 1 mi | 67 | 37.5% | 70.3% | −8.3 | 0.1% |
| California average | — | 43 | 21.3% | 42.7% | −2.9 | 1.6% |