La Serna High
15301 Youngwood Drive, Whittier, CA 90605-1345
Summary
Reading and math results average to the 82nd percentile among comparable California schools.
69.6% of students met California's reading standard, but it is slowly trending down.
Math is weaker: 44.4% of students met California's math standard, but it is trending up slightly.
Proficiency stats
| Current Reading Proficiency | 69.6% |
| Current Math Proficiency | 44.4% |
| Reading State Rank | 327/1,596 (80th percentile) |
| Math State Rank | 265/1,596 (83rd percentile) |
School information
| Student / Teacher Ratio | 26:1 |
| Student enrollment (2024–25) | 2,372 |
| Low-Income Students | 1,406 (59.3%) |
| English Learners | 137 (5.8%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | No |
| Magnet school | No |
Test score trends
Reading fell 1.7 points from last year and fell 4.0 points over the full period. Math rose 1.5 points from last year and rose 1.7 points over the full period.
•Math +1.7 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
Most students in every reported group meet the reading standard. Asian and White students have the strongest results.
Distribution of Scores by Grade
69.6% of tested students meet the reading standard in the grade shown. Overall, the school’s reading results rank in the top 21% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 18.3-point reading income gap is slightly wider than the 14.7-point gap at a typical California 9–12 school. It widened over the period shown.
•English Learners vs English Native
3.3% of English learners meet the reading standard, compared with 73.7% of English-only students. The gap widened 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 73% proficiency. The other reported groups range from about 41% to 58%.
Distribution of Scores by Grade
44.4% of tested students meet the math standard in the grade shown. Overall, the school’s math results rank in the top 17% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 16.7-point math income gap is slightly wider than the 14.2-point gap at a typical California 9–12 school. It narrowed over the period shown.
•English Learners vs English Native
3.3% of English learners meet the math standard, compared with 47.8% of English-only students. The gap widened as English-learner results fell 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 La Serna High compare within the district?
La Serna High is No. 3 in both reading and math proficiency among the 6 9–12 schools in Whittier Union High with 2026 results.
Explore the district’s schoolsHow does La Serna High rank in California?
La Serna High ranks No. 327 of 1,596 in reading and No. 265 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 La Serna High compare within the district?
Low-income students here rank No. 5 in reading and No. 3 in math among 6 9–12 district schools with reportable 2026 results for this group. 62.7% meet the reading standard and 38.1% meet the math standard.
See results by student groupHow does La Serna High compare with other schools in Whittier?
La Serna High is No. 2 in both reading and math proficiency among the 5 9–12 schools in Whittier with 2026 results.
Explore schools in WhittierHow does La Serna High compare with other schools in Los Angeles County?
La Serna High is No. 93 in reading and No. 61 in math proficiency among the 334 9–12 schools in Los Angeles County with 2026 results.
Explore schools in Los Angeles CountyWhich schools should I compare?
Schools serving 9–12 in the same district.
| School | Math | Reading |
|---|---|---|
| La Serna HighThis school | 44.4% | 69.6% |
| California High | 37.6% | 71.3% |
| Pioneer High | 37.9% | 65.7% |
