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Email BoardRio Valley Charter
1110 West Kettleman Drive, Suite 10, Lodi, CA 95240-6602
Summary
Rio Valley Charter is underperforming.
Reading and math results average to the 58th percentile among comparable California schools.
50.4% of students met California's reading standard, and it is trending up.
Math is weaker: 30.5% of students met California's math standard, but it is slowly trending up.
Proficiency stats
| Current Reading Proficiency | 50.4% |
| Current Math Proficiency | 30.5% |
| Reading State Rank | 598/1,734 (66th percentile) |
| Math State Rank | 863/1,735 (50th percentile) |
School information
| Student / Teacher Ratio | 22:1 |
| Student enrollment (2024–25) | 714 |
| Low-Income Students | 467 (65.4%) |
| English Learners | 74 (10.4%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | Yes |
| Magnet school | No |
Test score trends
Reading rose 0.5 points from last year and rose 6.2 points over the full period. Math fell 0.4 points from last year and rose 4.9 points over the full period.
•Math +4.9 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
White and Asian students have the strongest results.
Distribution of Scores by Grade
The share meeting the reading standard ranges from 42.5% to 60.0% across the grades shown. Overall, the school’s reading results rank in the top 35% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 24.2-point reading income gap is wider than the 11.6-point gap at a typical California K–12 school. It widened over the period shown.
•English Learners vs English Native
17.9% of English learners meet the reading standard, compared with 51.8% of English-only students. The gap widened as English-learner results rose and English-only results rose.
•Math Proficiency Scores
2026 state test results
Race and Ethnicity
White students have the strongest math results at about 40% proficiency. The other reported groups range from about 12% to 25%.
Distribution of Scores by Grade
The share meeting the math standard ranges from 21.9% to 44.6% across the grades shown. Overall, the school’s math results rank in the top 50% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 30.2-point math income gap is wider than the 10.8-point gap at a typical California K–12 school. It widened over the period shown.
•English Learners vs English Native
10.7% of English learners meet the math standard, compared with 32.6% of English-only students. The gap widened as English-learner results fell and English-only results rose.
•Progress as students move up
2023–2026
How we compare income gaps
“Typical” means the median gap across 249 schools for reading and 251 for math. The comparison uses 2026 California K–12 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 Rio Valley Charter compare within the district?
Rio Valley Charter is No. 1 in both reading and math proficiency among the 2 K–12 schools in Lodi Unified with 2026 results.
Explore the district’s schoolsHow does Rio Valley Charter rank in California?
Rio Valley Charter ranks No. 598 of 1,734 in reading and No. 863 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 Rio Valley Charter compare within the district?
Low-income students here rank No. 2 in both subjects among 2 K–12 district schools with reportable 2026 results for this group. 42.8% meet the reading standard and 21.0% meet the math standard.
See results by student groupHow does Rio Valley Charter compare with other schools in Lodi?
Rio Valley Charter is No. 2 in both reading and math proficiency among the 3 K–12 schools in Lodi with 2026 results.
Explore schools in LodiHow does Rio Valley Charter compare with other schools in San Joaquin County?
Rio Valley Charter is No. 3 in reading and No. 4 in math proficiency among the 7 K–12 schools in San Joaquin County with 2026 results.
Explore schools in San Joaquin CountyWhich schools should I compare?
Schools serving K–12 in the same district or city.
| School | Math | Reading |
|---|---|---|
| Rio Valley CharterThis school | 30.5% | 50.4% |
| Valley Robotics Academy | 27.7% | 47.5% |
| Vista Oaks Charter | 33.4% | 52.3% |
