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Which teacher or staff member at San Dimas High deserves more recognition?
Community prompt from u/allk12. Replies below.
Enrollment
1,235
High
DISTRICT 803 · STATE 838
SCHOOL COMMUNITY·BONITA UNIFIED·NCES 060561000514
San Dimas High
800 West Covina Blvd., San Dimas, CA 91773 · (909) 971-8230 · Los Angeles County
GRADES 09–12HIGH21-SUBURBREGULAR SCHOOL1,235 STUDENTS
A-
allk12 Grade
Scored higher than 78% of California public high schools
- ATest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- B+Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- CThree-year trend Change in reading and math proficiency over the last three test years.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded California public high schools
Student : Teacher
21.5:1
58 FTE teachers
DISTRICT 15.5:1 · STATE 18.2:1
Free / Reduced Lunch
38%
464 students
DISTRICT 38% · STATE 65%
Community
6
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 9 | 306 | 25% |
| Grade 10 | 314 | 25% |
| Grade 11 | 300 | 24% |
| Grade 12 | 315 | 26% |
Student demographics
59%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 62% · STATE 62% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Test scores
CAASPP 2024-25 . % met or exceeded standardEnglish Language Arts
76.1%
CA avg 49.1% . +5.1pp since 2014
Math
46.6%
CA avg 37.7% . +10.6pp since 2014
What this means: On the CAASPP, California's statewide test, about 76 of every 100 students at this school read and write at grade level and about 47 of 100 do math at grade level. Across all California schools, those numbers are about 49 and 38. Reading and writing scores are up about 5 points since 2014, while math scores are up about 11 points.
Performance levels, 2024-25
| Subject | Standard Exceeded | Standard Met | Standard Nearly Met | Standard Not Met |
|---|---|---|---|---|
| English Language Arts | 37.0% | 39.1% | 14.1% | 9.9% |
| Math | 23.8% | 22.8% | 26.0% | 27.4% |
Share of tested students at each CAASPP level. Each student counts in one level, so a row adds to about 100%.
CAASPP results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 76.1% | 46.6% |
| 2023-24 | 77.2% | 47.8% |
| 2022-23 | 78.3% | 47.9% |
| 2021-22 | 77.0% | 47.6% |
| 2020-21 | 100.0% | 64.7% |
| 2018-19 | 74.2% | 37.7% |
| 2017-18 | 75.3% | 41.5% |
| 2016-17 | 79.2% | 43.1% |
| 2015-16 | 55.0% | 28.0% |
| 2014-15 | 71.0% | 36.0% |
% met or exceeded standard, all students and all tested grades.
Source: CAASPP. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
61.9%
composite math + reading, all grades
Predicted
57.5%
based on CA schools with similar FRL share
Beats by
+4.4pp
above demographic expectation
What this means: About 62% of students here test proficient in math and reading, compared with the roughly 58% typical for California schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among California's top nor bottom 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like San Dimas High
San Dimas High's state test result (61.9% proficient) is higher than 5 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| San Dimas High this school | 1,235 | 37.6% | 61.9% |
| Christopher High Gilroy | 1,630 | 38.0% | 44.6% |
| Bonita Vista Senior High Chula Vista | 1,960 | 37.1% | 50.9% |
| Capuchino High San Bruno | 1,061 | 34.2% | 40.4% |
| Canyon High Canyon Country | 1,952 | 37.1% | 56.0% |
| Willow Glen High San Jose | 1,543 | 38.8% | 43.6% |
Matched among California high schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where San Dimas High ranks
Among high schools| Measure | This school | In California | In Los Angeles County |
|---|---|---|---|
| State test proficiency ranked highest first | 61.9% | #159 of 1,052 | #38 of 228 |
| Math proficiency ranked highest first | 46.6% | #195 of 1,056 ▼ 26 | #44 of 229 ▼ 6 |
| Reading proficiency ranked highest first | 76.1% | #146 of 1,056 ▼ 20 | #36 of 229 ▼ 4 |
| 3-year test score change ranked biggest drop first | -1.0pp | #320 of 1,044 | #34 of 229 |
| Enrollment ranked largest first | 1,235 | #676 of 2,093 | #139 of 486 |
| Students per teacher ranked fewest first | 21.5:1 | #754 of 1,352 | #238 of 358 |
| Diversity index ranked most diverse first | 59.3% | #427 of 1,351 | #63 of 359 |
| Free and reduced lunch ranked highest share first | 37.6% | #1,324 of 1,575 | #347 of 396 |
| Enrollment change since 2017-18 ranked steepest decline first | -10.2% | #450 of 802 | #157 of 227 |
Ranked against other public high schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
1,235
-100 (-7%) vs 2020
+4% since 1990-91, when it was 1,192
Student : Teacher
21.5:1
was 23.0:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 1,235 | 57.6 | 21.5:1 | 38% (464) |
| 2023-24 | 1,248 | 59.6 | 20.9:1 | 32% (405) |
| 2022-23 | 1,251 | 60.5 | 20.7:1 | 34% (424) |
| 2020-21 | 1,335 | 58 | 23.0:1 | 38% (513) |
| 2017-18 | 1,375 | 53.5 | 25.7:1 | 38% (522) |
| 2015-16 | 1,360 | 51 | 26.7:1 | 33% (447) |
| 2010-11 | 1,327 | N/A | N/A | 26% (339) |
| 2000-01 | 1,404 | 55 | 25.5:1 | 17% (239) |
| 1990-91 | 1,192 | 49 | 24.3:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for San Dimas High.
Since 2017-18: students down 10% (1,375 to 1,235); teachers up 8% (53.5 to 57.6).
About San Dimas High
San Dimas High is a high school in San Dimas, California, reachable at (909) 971-8230. It covers grades 9 through 12, with a total enrollment of 1,235 students. Enrollment is 47% higher than the average for high schools in California, which is about 838.
San Dimas High is part of a district of 15 schools: Bonita Unified, with 9,905 students.
Hispanic students account for 60% of enrollment at San Dimas High. Other students are 18% White, 11% Asian, 9% multiracial, and 3% Black. That is higher than the 48% Hispanic share among all Los Angeles County residents. San Dimas High has a diversity index of 59%, compared with 70% for all US public school students.
The school has about 21.5 students per teacher and 57.6 full-time-equivalent teachers. That ratio is over the 18.2:1 average for high schools in California. Federal records put free or reduced-price lunch eligibility at 38%. Public schools in Los Angeles County average 70%.
Measured against California public high schools, San Dimas High receives an A-. The grade weighs proficiency most heavily, then how results compare with what the school's low-income share predicts, then the three-year change.
San Dimas High's actual average proficiency rate on state tests (61.9%) and its predicted rate (57.5%) put it outside the top and bottom 10% of California schools.
Los Angeles County has about 9,808,667 residents, and median household income is about $90,112, 36% of adults hold a bachelor's degree or higher, and about 10% of people live in poverty. The public schools of Los Angeles County number 2,244 and enroll about 1,265,907.
The next-closest public school is Adult Transition Program, less than a tenth of a mile away. There are at least 8 more public schools inside five miles. Local comparison: San Dimas High ranks 4th of 6 nearby schools, at 61.9% versus a 60.9% average.
Locale: Suburb: Large. In NCES terms, the school is in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.
The 2024-25 enrollment of 1,235 was 7% lower than in 2020-21, when it was 1,335. By 2024-25, the school had 21.5 students per teacher, compared with 23.0 in 2020-21.
Parents and students can post about school events, clubs, and volunteer needs at San Dimas High. Alumni can share how the school prepared them.
Los Angeles County at a glance
View full county profilePopulation
9,808,667
Census ACS
Median income
$90,112
Household, ACS
Bachelor's+
36%
Adults 25+
Poverty rate
10%
Below federal line
Schools in county
2,244
1,265,907 students
Quick facts
Related schools
Other schools in Bonita Unified
- Bonita HighHigh · 1,911 students
- Ramona MiddleMiddle · 1,371 students
- Lone Hill MiddleMiddle · 870 students
- J. Marion Roynon ElementaryElementary · 842 students
- Arma J. Shull ElementaryElementary · 633 students
- Oak Mesa ElementaryElementary · 582 students
Other schools in San Dimas
- Ramona MiddleMiddle · 1,371 students
- Lone Hill MiddleMiddle · 870 students
- Arma J. Shull ElementaryElementary · 633 students
- Gladstone ElementaryElementary · 518 students
- Fred Ekstrand ElementaryElementary · 475 students
- Allen Avenue ElementaryElementary · 467 students
Nearby schools
- Adult Transition Program0.0 mi · 11
- Lone Hill Middle0.2 mi · 870
- Glen Oak Elementary1.1 mi · 428
- Gladstone Elementary1.2 mi · 518
- Arma J. Shull Elementary1.3 mi · 633
- Willow Elementary1.3 mi · 388
Frequently asked questions
About San Dimas HighWhat is the total enrollment at San Dimas High?
San Dimas High enrolls approximately 1,235 students in grades 09-12.
Is San Dimas High an elementary, middle, or high school?
San Dimas High is a high school covering grades 09-12.
How many teachers does San Dimas High have?
San Dimas High employs 58 FTE teachers, for a student-to-teacher ratio of 21.5:1.
What is the student diversity at San Dimas High?
Student demographics at San Dimas High are roughly 18% White, 60% Hispanic, 3% Black, 11% Asian, 9% Two or more.
What district is San Dimas High in?
San Dimas High is part of Bonita Unified.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.