Enrollment
1,350
California · 2024-25 NCES data
High school (grades 9-12) · San Jose, CA
Del Mar High
Federal NCES profile for Del Mar High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 21/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 060723000665
👥 S:T ratio 13
📚 AP courses 10
🌟 Gifted program 30
🎓 Counselors 10
📋 Attendance 43
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Del Mar High earns 21/100 on the Resource Investment Index, with class sizes near the California median.
- #32 of 42
- high schools in San Jose · Resource Index
- 21
- Resource Index · Lower
- 21.8:1
- students per teacher
- 50.3%
- free-lunch eligible
Del Mar High has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Del Mar High ranks #32 of 42 high schools in San Jose, CA.
School address
District: Campbell Union High · California
NCES ID 060723000665 Verify on NCES CCD record →
Teachers (FTE)
62.0
Federal CCD staff survey
Students per teacher
21.8:1
vs 21.5:1 California avg
+1% vs state
Free-lunch eligible
50.3%
vs 55.5% California avg
-9% vs state
Student-teacher ratio in context
How Del Mar High compares with California and U.S. medians
What stands out at Del Mar High
Del Mar High is a higher-need, large high school in San Jose, California, enrolling 1,350 students.
At 21.8:1, its student-teacher ratio sits close to the California median, within a few percentage points of the 21.5:1 state norm, neither notably crowded nor notably small.
Its free-meal eligibility rate of 50.3% lands close to the California typical range, neither a high- nor low-need campus by this measure.
By headcount it is one of the larger campuses in California, bigger than 93% of state schools at 1,350 students.
Its Resource Investment Index lands in the lower third of 9,998 scored California schools.
Among 468 similarly sized, similarly resourced-need California schools statewide, it ranks #331, in the lower tier once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (71%) and White (13%) (diversity index 47/100).
On the academic-pipeline side it reports 2 Advanced Placement courses.
Counselor access is stretched at roughly 450 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Attendance runs somewhat below the norm, with 22.7% of students chronically absent per the 2021-22 civil-rights collection.
The federal civil-rights collection also records 3 expulsions at this campus for 2021-22.
Among San Jose's high schools, it stands alongside Evergreen Valley High (2,703 students): Del Mar High is smaller than that campus by headcount and runs leaner classes (21.8:1 vs 23.7:1).
Campbell Union High also operates Leigh High (1,884 students) and Branham High (1,820 students) alongside Del Mar High.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Del Mar High compares
Del Mar High on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 21.8:1 | ▲ 1% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 50.3% | ▼ 9% | 55.5% | 51.7% |
| Enrollment | 1,350 | top 7% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
21.8:1
Leaner classes than 11% of US schools, heavier class loads than most.
1,350
Bigger than 95% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
50.3%
free-lunch eligible
- 9% below the California average of 55.5%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
21.8:1
students per teacher
- 1% above state mean
Top 51% in California - lower ratio than 49% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Engagement
22.7%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$15,734
per pupil, district-wide
- below California avg of $16,509
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors3.0 FTE
Per 450 students, the combined health-and-guidance staffing load for this school.
Discipline context
5
in-school suspensions + 28 out-of-school
Suspension rate: 0.4 per 100 students. Combined in-school and out-of-school rate: 2.4 per 100 students. Reported via the Civil Rights Data Collection. Includes 3 expulsions.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
Hispanic or Latino 71.3%
White 12.6%
Asian 9.0%
African American 3.8%
Two or More 3.3%
Largest group: Hispanic or Latino at 71.3% of enrollment.
Student-body diversity index 46.5/100
Simpson diversity index - at 46.5, Del Mar High is about as mixed as the California school average of 46.0.
Programs
AP courses offered 2
Funding & spending
District-wide per-pupil expenditure for Campbell Union High, which includes Del Mar High.
$15,734
Per student
-5%
vs California
Avg $16,509
-5%
vs U.S.
Avg $16,593
Revenue mix
Local 84.0%
State 11.9%
Federal 4.1%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Del Mar High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Leigh High | Larger | Lower economic need | Higher S:T ratio |
| Branham High | Larger | Lower economic need | Similar S:T ratio |
| Westmont High | Similar size | Lower economic need | Similar S:T ratio |
| Prospect High | Similar size | Lower economic need | Similar S:T ratio |
| Boynton High | Smaller | Similar economic need | Lower S:T ratio |
Comparisons are relative to Del Mar High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,884
- Students per teacher
- 25.8:1
- Resource Index
- 26/100
- Enrollment
- 1,820
- Students per teacher
- 22.2:1
- Resource Index
- 33/100
- Enrollment
- 1,682
- Students per teacher
- 22.7:1
- Resource Index
- 31/100
- Enrollment
- 1,460
- Students per teacher
- 21.8:1
- Resource Index
- 33/100
- Enrollment
- 163
- Students per teacher
- 12.5:1
- Resource Index
- 40/100
Similar high schools in San Jose
6 comparable high schools (grades 9-12) serving the same city.
Evergreen Valley High
Standard public school
2,703 students 23.7:1 students per teacher
Independence High
Standard public school
2,289 students 20.1:1 students per teacher
Silver Creek High
Standard public school
2,139 students 22.8:1 students per teacher
Santa Teresa High
Standard public school
2,134 students 22:1 students per teacher
Piedmont Hills High
Standard public school
1,918 students 22.8:1 students per teacher
Leigh High
Standard public school
1,884 students 25.8:1 students per teacher
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of California, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~1,350 students)
Similar student-teacher ratio (~21.8:1)
Next steps
Verify locally before acting on Del Mar High's federal record.
- Compare Del Mar High against another school. Compare schools
- Campbell Union High's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Del Mar High
How many students attend Del Mar High?
Del Mar High has 1,350 students enrolled. It is a high school in San Jose, CA.
What is the student-teacher ratio at Del Mar High?
The student-teacher ratio at Del Mar High is 21.8:1, which is 1% higher than the California average of 21.5:1 and 39% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Del Mar High?
50.3% of students at Del Mar High are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Del Mar High?
The largest demographic group at Del Mar High is Hispanic or Latino at 71.3% of enrollment, in San Jose, CA.
What is the Resource Investment Index for Del Mar High?
Del Mar High has a Resource Investment Index of 21/100 (lower reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Del Mar High rank among high schools in San Jose?
By Resource Investment Index, Del Mar High ranks #32 of 42 high schools in San Jose, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in San Jose on the city page.
Is Del Mar High a good school?
Del Mar High earns 21/100 on the Resource Investment Index, with class sizes near the California median. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Campbell Union High?
Besides Del Mar High, Campbell Union High also operates Leigh High (1,884 students), Branham High (1,820 students), and Westmont High (1,682 students). See the Campbell Union High district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.