Average
#6576 of 9,539 schools in CA
Grossmont High
High School · Grossmont Union High · La Mesa, CA
A Grossmont Union High high school where students score 4 points above what's typical for similar communities.
PO Box 1043, La Mesa, CA 91944
- Math 24% vs CA 32% (2024)
- Reading 61% vs CA 52% (2024)
- 76.0% 4-year graduation
Academics
Full Profile · 4/4 metricsView breakdown
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Students at Grossmont High score 42% proficient, which is above what's typical for similar communities (expected: 39%).
2024 CAASPP proficiency
Most recent published year. School vs. CA average.
Trend
↓ DecliningProficiency has fallen 9 points since 2019, to 43% in 2024, across a 16-year record (2009–2024).
Show all 14 years
Multi-year averages used by the rating model: math 42% (multi-year average, 2009-2024) · reading/ELA 62% (multi-year average, 2009-2024)
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Based on 30 test records from CA state assessments and EdFacts (NCES).
Equity & diversity
Shown separately, not included in the overall scoreFree/reduced lunch
63.5%
Students qualifying for federal meal assistance
How we rate schools
A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.
See how we rateThe neighborhood
Where Grossmont High sits, and what the surrounding area looks like.
Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries. Open the San Diego map →
Getting around & local context
- Walk 37Car-Dependent
- Transit 31Some Transit
- Bike 17Somewhat Bikeable
- City Safety: High1,806/100K
Powered by
FBI Uniform Crime Reporting · 2024 · city context (La Mesa), not school-level safety or attendance eligibility. Source details
Source period: 2024. Freshness not available.
Programs & students
Programs & Offerings
Compare nearby
Nearby same-level schools
4 from a 5-mile search; district fallback available
| School | Score | Grades | Distance | Enrollment | Compare |
|---|---|---|---|---|---|
| Foothills Christian High SchoolPrivate · tuition | 6.7private | 9–12 | 1.3 mi | 265 | Compare → |
| Jcs - ManzanitaCharter · enrollment unverified | 8.6 | K–12 | 1.6 mi | 200 | Compare → |
| Literacy First CharterCharter · enrollment unverified | 5.6 | K–12 | 2.0 mi | 2,050 | Compare → |
| Acton Academy San Diego EastPrivate · tuition | Not rated | K–10 | 2.1 mi | 18 | Compare → |
Distance is proximity only; it is not attendance eligibility.
Private · tuition: Potential private option; tuition and admission requirements have not been verified.
Charter · enrollment unverified: Potential charter option; enrollment requirements have not been verified.
Public and private scores come from different models and are shown side by side, not blended into one ranking.
Grossmont Union High
- Schools in district
- 15
- Rank in district
- #5 of 14
- District spending per student
- $18,399NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- 13.3%Census SAIPE · 2024
Grossmont High is listed in Grossmont Union High; a district label does not verify attendance for an address.
About Grossmont High
Grossmont High is a public high school in La Mesa, CA, part of Grossmont Union High, serving approximately 2,079 students in grades 9th-12th with a 346.5:1 student-teacher ratio. It holds a MySchoolScout rating of 5.4 out of 10 and ranks #6,576 of 9,539 schools in CA. State assessment records show 42% math proficiency (multi-year average, 2009-2024) and 62% reading/ELA proficiency (multi-year average, 2009-2024).
Frequently asked questions
Common questions about Grossmont High
What grades does Grossmont High serve?
Grossmont High serves students in grades 9th through 12th.
How many students attend Grossmont High?
Grossmont High has an enrollment of approximately 2,079 students.
What is the student-teacher ratio at Grossmont High?
The student-teacher ratio at Grossmont High is 346.5:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Grossmont High rank in CA?
Grossmont High ranks #6,576 of 9,539 schools in CA.
What is Grossmont High's MySchoolScout rating?
Grossmont High has a current MySchoolScout rating of 5.4 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Grossmont High?
Based on loaded state assessment records, Grossmont High has 42% math proficiency (multi-year average, 2009-2024) and 62% reading/ELA proficiency (multi-year average, 2009-2024).
Is Grossmont High a charter school?
No, Grossmont High is not a charter school. It is a traditional public school operated by the local school district.
Is Grossmont High a Title I school?
No, Grossmont High is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Grossmont High?
63.5% of students at Grossmont High qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
School factsNCES Common Core of Data (CCD) (SY 2023–24)
- Grades
- 9th – 12th
- Enrollment
- 2,079
- Student-Teacher Ratio
- 346.5:1
- Teachers (FTE)
- 6
- Type
- regular
- Setting
- Large Suburb
- County
- San Diego County
- Chronic Absenteeism (SY 2022-23)
- 25.3%
- Phone
- (619) 668-6000
- 4-Year Graduation
- 76.0%
Official sources & links
About this school's data
Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.
- School directory (enrollment, grades, staff, contact)
- NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
- Source period: SY 2023–24. A newer release may be available.
- MySchoolScout rating and rank
- MySchoolScout ranking model · Low confidence
- Vintage not available. Do not use this measure alone.
- Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
- Math proficiency
- State department of education · 2024 CAASPP · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: 2024 CAASPP. A newer release may be available.
- Derived from source records rather than read directly from one field.
- Reading/ELA proficiency
- State department of education · 2024 CAASPP · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: 2024 CAASPP. A newer release may be available.
- Derived from source records rather than read directly from one field.
- Student progress (growth)
- NCES EdFacts · Mixed source periods · Low confidence
- Vintage not available. Do not use this measure alone.
- Available for part of the eligible units; results may not represent the full area.
- Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
- Programs (AP/IB, athletics, gifted)
- CRDC via Urban Institute · SY 2021–22 · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: SY 2021–22. A newer release may be available.
Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2024; directory SY 2023–24
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