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Email BoardCharleston Elementary
18463 West Charleston Road, Los Banos, CA 93635-9540
Summary
Charleston Elementary is badly underperforming.
Reading and math results average to the 46th percentile among comparable California schools.
Only 38.0% of students met California's reading standard, and it is trending down.
41.0% of students met California's math standard, but it is slowly trending up.
Proficiency stats
| Current Reading Proficiency | 38.0% |
| Current Math Proficiency | 41.0% |
| Reading State Rank | 2,873/4,657 (38th percentile) |
| Math State Rank | 2,122/4,657 (54th percentile) |
School information
| Student / Teacher Ratio | 23:1 |
| Student enrollment (2024–25) | 374 |
| Low-Income Students | 276 (73.8%) |
| English Learners | 79 (21.1%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | No |
| Magnet school | No |
Test score trends
Reading fell 6.1 points from last year and fell 9.2 points over the full period. Math rose 7.6 points from last year and rose 4.3 points over the full period.
•Math +4.3 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
White and Hispanic or Latino students have the strongest results.
Distribution of Scores by Grade
The share meeting the reading standard ranges from 28.3% to 42.3% across the grades shown. Overall, the school’s reading results rank No. 2,873 of 4,657 among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 23.1-point reading income gap is wider than the 17.6-point gap at a typical California K–6 school. It narrowed over the period shown.
•English Learners vs English Native
11.1% of English learners meet the reading standard, compared with 42.0% of English-only students. The gap narrowed as English-learner results rose and English-only results fell.
•Math Proficiency Scores
2026 state test results
Race and Ethnicity
White students have the strongest math results at about 45% proficiency. The other reported groups range from about 39% to 39%.
Distribution of Scores by Grade
The share meeting the math standard ranges from 18.9% to 82.7% across the grades shown. Overall, the school’s math results rank in the top 46% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 9.8-point math income gap is narrower than the 17.5-point gap at a typical California K–6 school. It narrowed over the period shown.
•English Learners vs English Native
37.0% of English learners meet the math standard, compared with 43.3% of English-only students. The gap narrowed as English-learner results rose and English-only results rose.
•Progress as students move up
2023–2026
How we compare income gaps
“Typical” means the median gap across 1,479 schools for reading and 1,483 for math. The comparison uses 2026 California K–6 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 Charleston Elementary compare within the district?
Charleston Elementary is No. 3 in reading and No. 2 in math proficiency among the 9 K–6 schools in Los Banos Unified with 2026 results.
Explore the district’s schoolsHow does Charleston Elementary rank in California?
Charleston Elementary ranks No. 2,873 of 4,657 in reading and No. 2,122 of 4,657 in math for 2026. These proficiency rankings compare California schools in the same grade-level category.
How do low-income students at Charleston Elementary compare within the district?
Low-income students here rank No. 6 in reading and No. 2 in math among 9 K–6 district schools with reportable 2026 results for this group. 30.7% meet the reading standard and 37.9% meet the math standard.
See results by student groupHow does Charleston Elementary compare with other schools in Los Banos?
Charleston Elementary is No. 3 in reading and No. 2 in math proficiency among the 9 K–6 schools in Los Banos with 2026 results.
Explore schools in Los BanosHow does Charleston Elementary compare with other schools in Merced County?
Charleston Elementary is No. 13 in reading and No. 5 in math proficiency among the 31 K–6 schools in Merced County with 2026 results.
Explore schools in Merced CountyWhich schools should I compare?
Schools serving K–6 in the same district.
| School | Math | Reading |
|---|---|---|
| Charleston ElementaryThis school | 41.0% | 38.0% |
| Grasslands Elementary | 41.8% | 46.7% |
| Henry Miller Elementary | 14.0% | 23.3% |
