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Email BoardSierra High
1700 Thomas Street, Manteca, CA 95336-0032
Summary
Reading and math results average to the 78th percentile among comparable California schools.
67.6% of students met California's reading standard, and it is trending up slightly.
Math is weaker: 40.9% of students met California's math standard, but it is quickly trending up.
Proficiency stats
| Current Reading Proficiency | 67.6% |
| Current Math Proficiency | 40.9% |
| Reading State Rank | 382/1,596 (76th percentile) |
| Math State Rank | 329/1,596 (79th percentile) |
School information
| Student / Teacher Ratio | 22:1 |
| Student enrollment (2024–25) | 1,670 |
| Low-Income Students | 941 (56.3%) |
| English Learners | 180 (10.8%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | No |
| Magnet school | No |
Test score trends
Reading rose 1.0 points from last year and rose 1.9 points over the full period. Math rose 4.2 points from last year and rose 15.2 points over the full period.
•Math +15.2 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
Filipino and Two or more races students have the strongest results.
Distribution of Scores by Grade
67.6% of tested students meet the reading standard in the grade shown. Overall, the school’s reading results rank in the top 24% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 3.9-point reading income gap is narrower than the 14.7-point gap at a typical California 9–12 school. It narrowed over the period shown.
•
English Learners vs English Native
11.5% of English learners meet the reading standard, compared with 70.1% 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
Filipino students have the strongest math results at about 58% proficiency. The other reported groups range from about 23% to 57%.
Distribution of Scores by Grade
40.9% of tested students meet the math standard in the grade shown. Overall, the school’s math results rank in the top 21% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 11.4-point math income gap is narrower than the 14.2-point gap at a typical California 9–12 school. It widened slightly over the period shown.
•English Learners vs English Native
19.2% of English learners meet the math standard, compared with 39.7% of English-only students. The gap narrowed as English-learner results rose and English-only results rose.
•How we compare income gaps
“Typical” means the median gap across 876 schools for reading and 882 for math. The comparison uses 2026 California 9–12 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 Sierra High compare within the district?
Sierra High is No. 1 in both reading and math proficiency among the 5 9–12 schools in Manteca Unified with 2026 results.
Explore the district’s schoolsHow does Sierra High rank in California?
Sierra High ranks No. 382 of 1,596 in reading and No. 329 of 1,596 in math for 2026. These proficiency rankings compare California schools in the same grade-level category.
How do low-income students at Sierra High compare within the district?
Low-income students here rank No. 1 in both subjects among 5 9–12 district schools with reportable 2026 results for this group. 65.8% meet the reading standard and 35.6% meet the math standard.
See results by student groupHow does Sierra High compare with other schools in Manteca?
Sierra High is No. 1 in both reading and math proficiency among the 3 9–12 schools in Manteca with 2026 results.
Explore schools in MantecaHow does Sierra High compare with other schools in San Joaquin County?
Sierra High is No. 6 in reading and No. 7 in math proficiency among the 31 9–12 schools in San Joaquin County with 2026 results.
Explore schools in San Joaquin CountyWhich schools should I compare?
Schools serving 9–12 in the same district.
| School | Math | Reading |
|---|---|---|
| Sierra HighThis school | 40.9% | 67.6% |
| East Union High | 13.8% | 46.1% |
| Manteca High | 25.0% | 51.5% |
