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Email BoardGrossmont High
1100 Murray Drive, La Mesa, CA 91944-1043
Summary
Grossmont High is underperforming.
Reading and math results average to the 64th percentile among comparable California schools.
58.8% of students met California's reading standard, but it is trending down slightly.
Math is weaker: 29.7% of students met California's math standard, but it is trending up.
Proficiency stats
| Current Reading Proficiency | 58.8% |
| Current Math Proficiency | 29.7% |
| Reading State Rank | 604/1,596 (62nd percentile) |
| Math State Rank | 544/1,596 (66th percentile) |
School information
| Student / Teacher Ratio | 24:1 |
| Student enrollment (2024–25) | 2,172 |
| Low-Income Students | 1,389 (64.0%) |
| English Learners | 280 (12.9%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | No |
| Magnet school | No |
Test score trends
Reading rose 2.5 points from last year and fell 2.5 points over the full period. Math rose 4.8 points from last year and rose 5.9 points over the full period.
•Math +5.9 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
Two or more races and Hispanic or Latino students have the strongest results.
Distribution of Scores by Grade
58.8% of tested students meet the reading standard in the grade shown. Overall, the school’s reading results rank in the top 38% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 24.9-point reading income gap is 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
5.6% of English learners meet the reading standard, compared with 68.7% of English-only students. The gap narrowed as English-learner results rose and English-only results rose.
•Math Proficiency Scores
2026 state test results
Race and Ethnicity
White students have the strongest math results at about 32% proficiency. The other reported groups range from about 14% to 31%.
Distribution of Scores by Grade
29.7% of tested students meet the math standard in the grade shown. Overall, the school’s math results rank in the top 35% among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 23.6-point math income gap is wider than the 14.2-point gap at a typical California 9–12 school. It widened over the period shown.
•English Learners vs English Native
1.4% of English learners meet the math standard, compared with 35.6% 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 Grossmont High compare within the district?
Grossmont High is No. 4 in reading and No. 6 in math proficiency among the 11 9–12 schools in Grossmont Union High with 2026 results.
Explore the district’s schoolsHow does Grossmont High rank in California?
Grossmont High ranks No. 604 of 1,596 in reading and No. 544 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 Grossmont High compare within the district?
Low-income students here rank No. 4 in reading and No. 6 in math among 11 9–12 district schools with reportable 2026 results for this group. 49.5% meet the reading standard and 20.9% meet the math standard.
See results by student groupHow does Grossmont High compare with other schools in La Mesa?
Grossmont High is No. 2 in both reading and math proficiency among the 2 9–12 schools in La Mesa with 2026 results.
Explore schools in La MesaHow does Grossmont High compare with other schools in San Diego County?
Grossmont High is No. 46 in reading and No. 53 in math proficiency among the 92 9–12 schools in San Diego County with 2026 results.
Explore schools in San Diego CountyWhich schools should I compare?
Schools serving 9–12 in the same district.
| School | Math | Reading |
|---|---|---|
| Grossmont HighThis school | 29.7% | 58.8% |
| Helix High | 67.2% | 75.9% |
| El Cajon Valley High | 9.7% | 21.6% |
