Grossmont High
🇺🇸 Official data · 2025La Mesa, California 91944 · Grossmont Union High
#511 of 1,343 high schools in California
#10147 of 16,910 nationally
About Grossmont High
Grossmont High is a public high located in La Mesa, in the Grossmont Union High school district of California, United States. It caters for Grades 9–12. In 2025 it enrolled 2,172 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 43.2 out of 100, placing it in the lower 50% of high schools in United States and 511th of 1,343 ranked high schools in California. Its strongest component is reading proficiency (74th percentile), and its weakest is students per teacher (5th percentile).
Other published figures: enrollment 2,172.
There are 16 schools in La Mesa; Grossmont High ranks 10th of 14 scored schools there.
Success Index (US) breakdown
Each component is a percentile against high schools across United States.
- Math proficiency (30%)32%
- Reading proficiency (30%)71%
- Community advantage (fewer free/reduced-price lunch) (25%)64%
- Students per teacher (15%)24.4
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Grossmont High by the official sources.
- Enrollment
- 2,172
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 64%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 24.4
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 71%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 32%
- Share of tested students proficient or above (all students, all grades).
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Schools near Grossmont High
Closest schools by straight-line distance, with their Success Index (US).
Northmont Elementary
La Mesa · Public elementary · Grades K–5
422 students · 1.2 km away
EJE Elementary Academy Charter
El Cajon · Charter elementary · Grades K–5
582 students · 1.6 km away
EJE Middle Academy
El Cajon · Charter middle · Grades 6–8
254 students · 1.6 km away
Parkway Sports and Health Science Academy
La Mesa · Public middle · Grades 6–8
897 students · 1.9 km away
Sparrow Academy
La Mesa · Charter elementary · Grades K–5
156 students · 2.1 km away
Fletcher Hills Elementary
El Cajon · Public elementary · Grades K–5
540 students · 2.3 km away
Murdock Elementary
La Mesa · Public elementary · Grades K–5
608 students · 2.4 km away
Chase Avenue Elementary
El Cajon · Public elementary · Grades K–6
757 students · 2.5 km away
Lemon Avenue Elementary
La Mesa · Public elementary · Grades K–5
502 students · 2.5 km away
JCS - Manzanita
La Mesa · Charter other · Grades K–12
224 students · 2.6 km away
Similar schools
Public high schools in California with a comparable Enrollment.
Los Altos High
Los Altos · Public high · Grades 9–12
2,170 students
Foothill High
Pleasanton · Public high · Grades 9–12
2,169 students
Roosevelt High
Fresno · Public high · Grades 9–12
2,175 students
River City High
West Sacramento · Public high · Grades 9–12
2,168 students
Silverado High
Victorville · Public high · Grades 9–12
2,165 students
Serrano High
Phelan · Public high · Grades 9–12
2,163 students
Frequently asked questions
Is Grossmont High a good school?
Grossmont High has a Success Index (US) of 43.2 out of 100 (Lower 50% of high schools in United States) and ranks #511 of 1,343 in California. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Grossmont High rank in California?
Grossmont High ranks #511 of 1,343 high schools in California and #10147 of 16,910 nationally on the Success Index (US) (2025 data).
How many students attend Grossmont High?
Grossmont High had 2,172 students in 2025.
Is Grossmont High a elementary school or a high school?
Grossmont High is classified as a high covering Grades 9–12. It is a public school.
What other schools are near Grossmont High?
There are 10 schools within 15 km of Grossmont High; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.