Excellent
#1070 of 9,539 schools in CA
Top 11% in state
San Dimas High
High School · Bonita Unified
115 West Allen Ave., San Dimas, CA 91773
Enrollment
1,248
Student-Teacher
21.2:1
Score
8.3
Grades
9th – 12th
Enrollment
1,248
Student-Teacher
21.2:1
Score
8.3
Grades
9th – 12th
Data vintage
2022-23
Data vintage2022-23
How this school compares
California schools
#1,070 of 9,539
In San Dimas
#1 of 14
public schools
In district
#1 of 13
Bonita Unified
Academic growth
8.9 / 10
Excellent
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San Dimas High
High School in San Dimas · grades 9th – 12th. Start here, then compare fit against nearby and district options.
Adult Transition Program
0.0 mi away. Use as a geographic alternative in the same move search.
Lone Hill Middle
0.2 mi away. Use as a geographic alternative in the same move search.
About San Dimas High
San Dimas High is a public high school in San Dimas, CA, part of Bonita Unified. San Dimas High serves approximately 1,248 students, and covers grades 9th-12th, and has a 21.2:1 student-teacher ratio. San Dimas High has a current MySchoolScout rating of 8.3 out of 10 and ranks #1,070 of 9,539 schools in CA.
Structured state assessment records for San Dimas High show 53% math proficiency (multi-year average, 2009-2024) and 75% reading/ELA proficiency (multi-year average, 2009-2024).
- This school 8.3 · Excellent
- District avg 7.7
- CA avg 6.5
What Parents Should Know
San Dimas High runs 21.2:1 students to teachers, above the national average. That often means bigger classes. Ask how the school supports kids who need extra help, and whether there are teaching assistants or small-group time.
Score Breakdown
Full Profile · 4/4 metricsView breakdown
View breakdown
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San Dimas High — Students at San Dimas High score 62% proficient, which is above what's typical for similar communities (expected: 56%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
32.5%
Students qualifying for federal meal assistance
Test Scores CA CAASPP (2023-24)
Based on 30 test records from CA state assessments. About our data
Proficiency Trend
→ StableAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 8.9/10.
How San Dimas High Compares
See how San Dimas High performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Programs & Offerings
Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more
Location
115 West Allen Ave., San Dimas, CA 91773
Nearby Alternatives
Families considering San Dimas High may also want to explore other high schools in the area. Arrow High (Continuation) (rated 7.4/10, 1.6 miles away, in nearby Glendora), with a comparable rating. Additionally, Chaparral High (Continuation) (rated 6.6/10, 1.7 miles away), a more accessible option. For more schools in San Dimas, see our San Dimas schools guide .
Nearby Schools
20 within 1.9 mi| School | Distance | Rating |
|---|---|---|
| Adult Transition Program San Dimas | 0.0 mi | — |
| Lone Hill Middle San Dimas | 0.2 mi | 7.9 |
| CANYON VIEW SCHOOL San Dimas | 0.4 mi | 6.7 |
| DOVE DAY SCHOOL- EDUCATIONAL PROGRAMS- INC. San Dimas | 0.6 mi | — |
| ARROW MONTESSORI SCHOOL OF SAN DIMAS San Dimas | 1.1 mi | 6.2 |
| Arrow Montessori School of San Dimas San Dimas | 1.1 mi | — |
| Gladstone Elementary San Dimas | 1.2 mi | 5.9 |
| Arma J. Shull Elementary San Dimas | 1.3 mi | 7.6 |
| Glen Oak Elementary Covina | 1.1 mi | 6.4 |
| Willow Elementary Glendora | 1.3 mi | 6.6 |
| Chaparral High (Continuation) San Dimas | 1.7 mi | 6.6 |
| Vista (Alternative) San Dimas | 1.7 mi | — |
| Arrow High (Continuation) Glendora | 1.6 mi | 7.4 |
| Oak Knoll Alternative Glendora | 1.6 mi | 5.3 |
| Bridges Community Day Glendora | 1.6 mi | — |
| VIA VERDE MONTESSORI SCHOOL CORP. San Dimas | 1.8 mi | — |
| VIA VERDE MONTESSORI SCHOOL San Dimas | 1.8 mi | 6.4 |
| Fred Ekstrand Elementary San Dimas | 1.6 mi | 6.8 |
| ST LOUISE DE MARILLAC SCHOOL Covina | 1.6 mi | 5.5 |
| Sutherland Elementary Glendora | 1.9 mi | 6.3 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 91773 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$105,926
Median Home Value
$754,700
Median Rent
$2,232/mo
Population
33,917
College Educated
40.4%
Homeownership
71.3%
Avg Commute
31.9 min
Poverty Rate
9.2%
Median Age
42.7
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Gabrielino High San Gabriel, CA | 8.3 |
| Escondido Charter High Escondido, CA | 8.4 |
| Felicitas and Gonzalo Mendez High Los Angeles, CA | 8.4 |
| Gahr (Richard) High Cerritos, CA | 8.4 |
| Galileo High San Francisco, CA | 8.4 |
| Rosemead High Rosemead, CA | 8.4 |
Frequently Asked Questions
Common questions about San Dimas High
What grades does San Dimas High serve?
San Dimas High serves students in grades 9th through 12th.
How many students attend San Dimas High?
San Dimas High has an enrollment of approximately 1,248 students.
What is the student-teacher ratio at San Dimas High?
The student-teacher ratio at San Dimas High is 21.2:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does San Dimas High rank in CA?
San Dimas High ranks #1,070 of 9,539 schools in CA.
What is San Dimas High's MySchoolScout rating?
San Dimas High has a current MySchoolScout rating of 8.3 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 San Dimas High?
Based on loaded state assessment records, San Dimas High has 53% math proficiency (multi-year average, 2009-2024) and 75% reading/ELA proficiency (multi-year average, 2009-2024).
Is San Dimas High a charter school?
No, San Dimas High is not a charter school. It is a traditional public school operated by the local school district.
Is San Dimas High a Title I school?
No, San Dimas High is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for San Dimas High?
32.5% of students at San Dimas 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.
Neighborhood Context
Powered by 
Quick Facts NCES CCD (SY 2022-23)
- Grades
- 9th – 12th
- Enrollment
- 1,248
- Student-Teacher Ratio
- 21.2:1
- Teachers (FTE)
- 59
- Free/Reduced Lunch
- 32.5%
- Type
- regular
- Setting
- Large Suburb
- County
- Los Angeles County
- Chronic Absenteeism (SY 2022-23)
- 20.7%
- Phone
- (909) 971-8230
- 4-Year Graduation
- 96.0%
Resources & Links
District
Bonita Unified- District Enrollment
- 9,957
- Schools in District
- 15
- Per-Pupil Spending
- $14,544
- District Rank
- #1 of 13
Other Schools in This District
How we rate schools
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