CORE Charter
321 16th Street, Marysville, CA 95901-5122
Summary
CORE Charter is underperforming.
Reading and math results average to the 49th percentile among comparable California schools.
Only 47.2% of students met California's reading standard, and it is trending down.
Math is weaker: 24.3% of students met California's math standard, and it is trending down slightly.
Proficiency stats
| Current Reading Proficiency | 47.2% |
| Current Math Proficiency | 24.3% |
| Reading State Rank | 707/1,734 (59th percentile) |
| Math State Rank | 1,071/1,735 (38th percentile) |
School information
| Student / Teacher Ratio | 20:1 |
| Student enrollment (2024–25) | 554 |
| Low-Income Students | 291 (52.5%) |
| English Learners | 7 (1.3%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | Yes |
| Magnet school | No |
Test score trends
Reading fell 0.4 points from last year and fell 5.8 points over the full period. Math fell 1.1 points from last year and fell 2.6 points over the full period.
•Math -2.6 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
Two or more races and White students have the strongest results.
Distribution of Scores by Grade
The share meeting the reading standard ranges from 29.7% to 68.8% across the grades shown. Overall, the school’s reading results rank in the top 41% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 12.7-point reading income gap is slightly wider than the 11.6-point gap at a typical California K–12 school. It narrowed as non-low-income results fell, while low-income results were unchanged.
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 26% proficiency. The other reported groups range from about 12% to 25%.
Distribution of Scores by Grade
The share meeting the math standard ranges from 10.7% to 39.3% across the grades shown. Overall, the school’s math results rank No. 1,071 of 1,735 among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 17.4-point math income gap is wider than the 10.8-point gap at a typical California K–12 school. It widened slightly 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 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 CORE Charter rank in California?
CORE Charter ranks No. 707 of 1,734 in reading and No. 1,071 of 1,735 in math for 2026. These proficiency rankings compare California schools in the same grade-level category.
