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Email BoardMossdale Elementary
455 Brookhurst Boulevard, Lathrop, CA 95330-8688
Summary
Mossdale Elementary is badly underperforming.
Reading and math results average to the 40th percentile among comparable California schools.
Only 36.7% of students met California's reading standard, and it is trending down.
Math is weaker: 27.3% of students met California's math standard, and it is trending down slightly.
Proficiency stats
| Current Reading Proficiency | 36.7% |
| Current Math Proficiency | 27.3% |
| Reading State Rank | 1,109/1,734 (36th percentile) |
| Math State Rank | 968/1,735 (44th percentile) |
School information
| Student / Teacher Ratio | 27:1 |
| Student enrollment (2024–25) | 1,087 |
| Low-Income Students | 651 (59.9%) |
| English Learners | 214 (19.7%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | No |
| Magnet school | No |
Test score trends
Reading fell 6.5 points from last year and fell 6.1 points over the full period. Math fell 3.4 points from last year and fell 0.8 points over the full period.
•Math -0.8 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
Filipino and Asian students have the strongest results.
Distribution of Scores by Grade
The share meeting the reading standard ranges from 24.8% to 55.9% across the grades shown. Overall, the school’s reading results rank No. 1,109 of 1,734 among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 10.6-point reading income gap is narrower than the 16.5-point gap at a typical California K–8 school. It widened over the period shown.
•English Learners vs English Native
8.7% of English learners meet the reading standard, compared with 38.0% of English-only students. The gap narrowed as English-learner results fell and English-only results fell.
•Math Proficiency Scores
2026 state test results
Race and Ethnicity
Asian students have the strongest math results at about 41% proficiency. The other reported groups range from about 16% to 41%.
Distribution of Scores by Grade
The share meeting the math standard ranges from 15.8% to 41.2% across the grades shown. Overall, the school’s math results rank No. 968 of 1,735 among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 8.9-point math income gap is narrower than the 15.5-point gap at a typical California K–8 school. It widened slightly over the period shown.
•English Learners vs English Native
12.0% of English learners meet the math standard, compared with 28.3% of English-only students. The gap narrowed as English-learner results rose and English-only results held steady.
•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 Mossdale Elementary compare within the district?
Mossdale Elementary is No. 5 in both reading and math proficiency among the 20 K–8 schools in Manteca Unified with 2026 results.
Explore the district’s schoolsHow does Mossdale Elementary rank in California?
Mossdale Elementary ranks No. 1,109 of 1,734 in reading and No. 968 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 Mossdale Elementary compare within the district?
Low-income students here rank No. 6 in reading and No. 5 in math among 20 K–8 district schools with reportable 2026 results for this group. 32.9% meet the reading standard and 24.0% meet the math standard.
See results by student groupHow does Mossdale Elementary compare with other schools in Lathrop?
Mossdale Elementary is No. 4 in both reading and math proficiency among the 6 K–8 schools in Lathrop with 2026 results.
Explore schools in LathropHow does Mossdale Elementary compare with other schools in San Joaquin County?
Mossdale Elementary is No. 40 in reading and No. 37 in math proficiency among the 102 K–8 schools in San Joaquin County with 2026 results.
Explore schools in San Joaquin CountyWhich schools should I compare?
Schools serving K–8 in the same district.
| School | Math | Reading |
|---|---|---|
| Mossdale ElementaryThis school | 27.3% | 36.7% |
| Joseph Widmer Jr. Elementary | 17.2% | 29.2% |
| Lathrop Elementary | 11.8% | 26.0% |
