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Email BoardTwin Rivers Charter
2510 Live Oak Boulevard, Yuba City, CA 95991-8809
Summary
Twin Rivers Charter is an excellent school.
Reading and math results average to the 98th percentile among comparable California schools.
80.5% of students met California's reading standard, and it is trending up.
79.0% of students met California's math standard, which is strong statewide and is quickly trending up.
Proficiency stats
| Current Reading Proficiency | 80.5% |
| Current Math Proficiency | 79.0% |
| Reading State Rank | 53/1,734 (97th percentile) |
| Math State Rank | 34/1,735 (98th percentile) |
School information
| Student / Teacher Ratio | 24:1 |
| Student enrollment (2024–25) | 519 |
| Low-Income Students | 208 (40.1%) |
| English Learners | 20 (3.9%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Lottery |
|---|---|
| Charter school | Yes |
| Magnet school | No |
Test score trends
Reading rose 6.7 points from last year and rose 9.2 points over the full period. Math rose 7.3 points from last year and rose 11.4 points over the full period.
•Math +11.4 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
Most students in every reported group meet the reading standard. Asian and White students have the strongest results.
Distribution of Scores by Grade
The share meeting the reading standard ranges from 76.4% to 84.9% across the grades shown. Overall, the school’s reading results rank in the top 4% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 1.6-point reading income gap is narrower than the 16.5-point gap at a typical California K–8 school. It narrowed 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
Two or more races students have the strongest math results at about 85% proficiency. The other reported groups range from about 67% to 84%.
Distribution of Scores by Grade
The share meeting the math standard ranges from 73.6% to 88.5% across the grades shown. Overall, the school’s math results rank in the top 2% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 6.4-point math income gap is narrower than the 15.5-point gap at a typical California K–8 school. It narrowed 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 802 schools for reading and 801 for math. The comparison uses 2026 California K–8 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 Twin Rivers Charter compare within the district?
Twin Rivers Charter is No. 1 in both reading and math proficiency among the 6 K–8 schools in Yuba City Unified with 2026 results.
Explore the district’s schoolsHow does Twin Rivers Charter rank in California?
Twin Rivers Charter ranks No. 53 of 1,734 in reading and No. 34 of 1,735 in math for 2026. These proficiency rankings compare California schools in the same grade-level category.
How do low-income students at Twin Rivers Charter compare within the district?
Low-income students here rank No. 1 in both subjects among 6 K–8 district schools with reportable 2026 results for this group. 79.6% meet the reading standard and 75.3% meet the math standard.
See results by student groupHow does Twin Rivers Charter compare with other schools in Yuba City?
Twin Rivers Charter is No. 1 in both reading and math proficiency among the 7 K–8 schools in Yuba City with 2026 results.
Explore schools in Yuba CityHow does Twin Rivers Charter compare with other schools in Sutter County?
Twin Rivers Charter is No. 1 in both reading and math proficiency among the 15 K–8 schools in Sutter County with 2026 results.
Explore schools in Sutter CountyWhich schools should I compare?
Schools serving K–8 in the same district.
| School | Math | Reading |
|---|---|---|
| Twin Rivers CharterThis school | 79.0% | 80.5% |
| Andros Karperos | 21.1% | 30.5% |
| Barry Elementary | 30.6% | 37.3% |
