How does Grossmont High compare to other high schools in La Mesa?

Grossmont High has a Scope Score of 54/100, ranked #810 among California high schools. 20% of students exceed standard, with a total of 887 students tested across grades and subjects.

What percentage of students exceed standards at Grossmont High?

20.5% of students at Grossmont High exceed the state standard on CAASPP assessments, while 40.6% meet or exceed it. The gap between these two numbers reveals whether the school pushes students beyond basic proficiency.

What is the chronic absenteeism rate at Grossmont High?

21.6% of students at Grossmont High are chronically absent (missing 10% or more of school days). This metric reflects school culture and family engagement, and is weighted at 15% in the Scope Score.

Grossmont High

High School

Grossmont Union HighLa Mesa, San Diego County91944

📍 1100 Murray Drive 📞 (619) 668-6000 🌐 Website

Scope Score

out of 100

State Rank

of 1,649 California high schools

🌱

Building Momentum

Every school has strengths the data doesn’t fully capture. Visit and see for yourself.

Resources alone aren't driving results yet — deeper challenges may be at play

Scope Scores are SchoolScope's analysis of public data from the California Dept. of Education (CAASPP, chronic absenteeism, suspension rates). They are not official CDE ratings and should not be the sole basis for school decisions. See methodology.

Score Factors

Helping

✓Exceeded standard: 20.5%

4.8pp above state avg (state avg 15.7%)

20% weight

✓College readiness: 58.8%

AP exam pass rate above state avg (state avg 35.3%)

20% weight

✓Met or exceeded: 40.6%

5.8pp above state avg (state avg 34.8%)

15% weight

✓Chronic absenteeism: 21.6%

12.7pp below state avg (state avg 34.3%)

10% weight

✓Baseline proficiency: 40.6%

Above state baseline (state avg 34.8%)

5% weight

✓Suspension rate: 3.6%

0.5pp below state avg (state avg 4.1%)

5% weight

Holding Back

▼Graduation rate: 82.4%

5.0pp below state avg (state avg 87.4%)

25% weight

Unlike traditional school ratings, we show our work. Every factor, its weight, and how this school compares to the state average — so you can decide what matters most to your family. The high school Scope Score is weighted across 7 dimensions. See full methodology →

College & career readiness

Graduation Rate

82.4%

AP Exam Prepared

58.8%

A-G Completion

55.2%

College-Going Rate

75.8%

Data source: California Department of Education — ACGR, CCI, CGR reports

5-year trend

↓ 4.3 points since 2019

Rank: #711 → #675 → #763 → #813 → #810Exceeded: 20% → 22% → 18% → 15% → 20%

2019 · 2022 · 2023 · 2024 · 2025 · No testing 2020–21 (COVID) · Scope Score based on CAASPP, absenteeism & suspension data

Key metrics

% Exceeded Standard

20.5%

Students scoring above proficient

% Met or Above

40.6%

Students meeting standard

Chronic Absenteeism

21.6%

Students missing 10%+ of days

Suspension Rate

3.6%

Students suspended at least once

Total Tested

887

Across all grades & subjects

ELA scores by grade

Grade	Tested	Exceeded	Met	Nearly Met	Not Met	Met+Above
11th	457	29.1%	27.1%	23.4%	20.4%	56.2%

Math scores by grade

Grade	Tested	Exceeded	Met	Nearly Met	Not Met	Met+Above
11th	430	11.9%	13.0%	21.9%	53.3%	24.9%

Science (CAST)

Level	%
Exceeded	7.7%
Met	26.0%
Nearly Met	58.9%
Not Met	7.3%
Met+	33.8%

465 students tested · CAST is tested in grades 5, 8, and once in high school — not annually like ELA/Math. Not included in the Scope Score. · Data source: CDE CAST 2025

What other rankings don't show you

Most rating sites report "41% proficient" for Grossmont High and stop there. Here's what that number hides:

20.5% of students exceeded standard while 20.1% met it. That exceeded rate is 4.8 points above the state average of 15.7%. That's 3.5 points above the Grossmont Union High district average of 16.9%. Compared to the 5 nearby schools within ~3 miles, this exceeded rate is 7.0 points higher (vs 13.5% average). The gap between "met" and "exceeded" can reveal how much a school's curriculum challenges students beyond proficiency.

The graduation rate is 82.4%. 55.2% of students complete A-G requirements for UC/CSU eligibility — a strong college readiness signal. 75.8% of graduates go on to college within a year.

Chronic absenteeism is 21.6%, better than the state average of 34.3%.

Why the exceeded vs. met split matters →