Gratton Charter
4500 South Gratton Road, Denair, CA 95316-9762
Summary
Gratton Charter is a good school.
Reading and math results average to the 93rd percentile among comparable California schools.
70.3% of students met California's reading standard, and it is trending up.
66.2% of students met California's math standard, but it is trending up.
Proficiency stats
| Current Reading Proficiency | 70.3% |
| Current Math Proficiency | 66.2% |
| Reading State Rank | 145/1,734 (92nd percentile) |
| Math State Rank | 94/1,735 (95th percentile) |
School information
| Student / Teacher Ratio | 17:1 |
| Student enrollment (2024–25) | 111 |
| Low-Income Students | 14 (12.6%) |
| English Learners | 4 (3.6%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | Yes |
| Magnet school | No |
Test score trends
Reading rose 7.6 points from last year and rose 7.1 points over the full period. Math rose 4.9 points from last year and rose 9.6 points over the full period.
•Math +9.6 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
Most students in every reported group meet the reading standard. White and Hispanic or Latino students have the strongest results.
Distribution of Scores by Grade
The share meeting the reading standard ranges from 45.5% to 84.6% across the grades shown. Overall, the school’s reading results rank in the top 9% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
Results for both income groups are unavailable, so a current reading gap cannot be calculated.
•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
Hispanic or Latino students have the strongest math results at about 73% proficiency. The other reported groups range from about 66% to 66%.
Distribution of Scores by Grade
The share meeting the math standard ranges from 45.5% to 92.3% across the grades shown. Overall, the school’s math results rank in the top 6% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
Results for both income groups are unavailable, so a current math gap cannot be calculated.
•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 Gratton Charter rank in California?
Gratton Charter ranks No. 145 of 1,734 in reading and No. 94 of 1,735 in math for 2026. These proficiency rankings compare California schools in the same grade-level category.
How does Gratton Charter compare with other schools in Stanislaus County?
Gratton Charter is No. 1 in both reading and math proficiency among the 13 K–8 schools in Stanislaus County with 2026 results.
Explore schools in Stanislaus County