Twin Rivers Charter: High scores, healthy climate, strong attendance. We looked for a catch — we didn't find one.
Twin Rivers Charter posts 53.5% exceeding the standard — versus 21.3% statewide — with climate numbers better than most. That doesn't make it perfect. It makes it worth a visit to find what numbers can't measure.
Twin Rivers Charter scores 71 of 100 on SchoolScope's Scope Score — the 92nd 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 “76% proficient” and call it done. Twin Rivers Charter deserves a closer read. The school sits in Yuba City, where one in three students qualify for free or reduced lunch — and reading the numbers without that context misreads the school.
The headline number: 53.5% of students scored in the top band on the state test. The California average is 21.3%.
As a charter, Twin Rivers Charter 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 falls 2.8pp across grades; the floor rises 15.5pp. The state average rises 4.5pp over the same span. A school visit and conversation with teachers will tell you more than this number.
Twin Rivers Charter's most underrated number
68.2% of low-income students met the ELA standard — versus 38.2% for the same group statewide. That's the strongest kind of signal a school can post: it holds across income lines.
The 5 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.
Where the path goes
The path below follows attendance boundaries — scores shown for each next step.
Your other options
Nearby Elementary Schools
3 within ~3 mi · avg 43
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
3 more gaps 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
Low-income student ELA proficiency rises by 6.7pp from grade 3 to grade 5 at this school. District average: +6.5pp.
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 | 51 | 51% | 16% | 24% | 10% | 67% | +23 |
| Grade 4 | 53 | 55% | 25% | 13% | 8% | 79% | +34 |
| Grade 5 | 56 | 48% | 34% | 7% | 11% | 82% | +34 |
| Grade 6 | 54 | 26% | 43% | 22% | 9% | 69% | +22 |
| Grade 7 | 53 | 36% | 40% | 17% | 8% | 75% | +28 |
| Grade 8 | 50 | 30% | 40% | 28% | 2% | 70% | +24 |
| Math | Tested | EXC | MET | NEAR | NOT | MET+ | +/CA |
|---|---|---|---|---|---|---|---|
| Grade 3 | 51 | 57% | 22% | 14% | 8% | 78% | +33 |
| Grade 4 | 53 | 57% | 28% | 13% | 2% | 85% | +43 |
| Grade 5 | 56 | 54% | 9% | 21% | 16% | 63% | +27 |
| Grade 6 | 54 | 48% | 24% | 22% | 6% | 72% | +37 |
| Grade 7 | 53 | 53% | 21% | 11% | 15% | 74% | +40 |
| Grade 8 | 50 | 46% | 12% | 22% | 20% | 58% | +26 |
| Science (CAST) | Tested | EXC | MET | NEAR | NOT |
|---|---|---|---|---|---|
| Grade 5/8/11 | 106 | 25% | 28% | 42% | 4% |
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 | 132 | 68.2% | +35 | +30 |
| White | 151 | 80.1% | +37 | +18 |
| Hispanic/Latino | 87 | 64.4% | +35 | +26 |
| School | Dist | Scope | EXC | MET+ | Growth | Susp |
|---|---|---|---|---|---|---|
| Twin Rivers Charter ← | — | 71 | 53.5% | 75.7% | −0.2 | 1.9% |
| AeroSTEM Academy | 2.9 mi | 51 | 18.3% | 46.1% | +13.0 | 7.5% |
| Butte Vista Elementary | 1.4 mi | 39 | 19.4% | 46.8% | +3.8 | 5.4% |
| CORE Charter | 1.9 mi | 39 | 8.5% | 27.3% | +15.5 | 0.7% |
| California average | — | 43 | 21.3% | 42.7% | −2.9 | 1.6% |
- — Scored here as an elementary school — other grade spans appear in the data appendix.