Enrollment
886
California · 2024-25 NCES data
2024-25 NCES data High school (grades 9-12) NCES 063486005886
San Marino High — San Marino, CA
Federal NCES profile for San Marino High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators — Resource Investment Index 58/100.
👥 Class size 23
📚 AP courses 80
🌟 Gifted program 30
🎓 Counselors 56
📋 Attendance 99
How this works: Each indicator above is scored 0–100 from federal NCES and CRDC data, then averaged into the Resource Investment Index. This measures resource allocation — staffing, programs, and support services — not standardized test scores or academic outcomes. Full methodology →
School address
District: San Marino Unified · California
Public location data per NCES (National Center for Education Statistics) Common Core of Data. Verify the school's current address on the NCES CCD record.
Teachers (FTE)
42.0
Federal CCD staff survey
Students per teacher
19.2:1
vs 21.6:1 California avg
-11% vs state
Free-lunch eligible
9.3%
vs 55.5% California avg
-83% vs state
Student-teacher ratio in context
How San Marino High compares with California and U.S. medians
The federal record — no proprietary index, no editorial formula.
PlainSchools publishes the actual federal measurements — enrollment, staffing, demographics, discipline, and finance — straight from the NCES Common Core of Data, CRDC, and F-33 surveys. No composite rating, no opinion-based score on top. You get the same raw numbers researchers and policymakers use, with benchmarks, spending context, and equity indicators computed from the same federal datasets. Full methodology linked below.
What this school's NCES data tells you
San Marino High reports 886 enrolled students to the National Center for Education Statistics (NCES) alongside 42.0 full-time-equivalent teachers, producing a 19.2:1 student-teacher ratio. That figure sits 11% below the California state mean of 21.6:1, signalling more teacher attention per pupil than the state benchmark. Against the national 2024-25 average of 15.9:1, it is 21% higher, a useful calibration for families comparing districts across state lines.
Title I and federal lunch eligibility offer another window into the student body: 9.3% of pupils qualify for free meals, a proxy for household income that federal programs use to direct funding. The free-lunch share is 83% below the California average and 82% below the national baseline. The school offers 16 Advanced Placement courses, a stronger academic pipeline indicator than enrollment alone. Counselor coverage works out to roughly 222 students per counselor, meeting the American School Counselor Association recommendation of 250:1. Chronic absenteeism — missing 10% or more of school days — stands at 0.3% according to the 2021-22 Civil Rights Data Collection.
On the finance side, the surrounding San Marino Unified spends $16,687 per pupil district-wide, below the California average of $18,039 and below the national average of $19,490. Revenue comes 63.7% from local sources (property taxes), 28.4% from the state, and 7.9% from federal programs per the NCES F-33 finance survey. Taken together, these measurements produce a Resource Investment Index of 58/100 (C), calculated from 5 distinct NCES and CRDC indicators measuring resource allocation rather than academic outcomes.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How San Marino High compares
Cross-validating school-level NCES values against California state and U.S. national means lets readers see whether this school is an outlier or in line with peers.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 19.2:1 | ▼ 11% | 21.6:1 | 15.9:1 |
| Free-lunch eligible | 9.3% | ▼ 83% | 55.5% | 51.8% |
| Enrollment | 886 | top 86% | — | — |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
What the federal data reveals about equity at this school
Federal measurements — not ratings — surface the resource and opportunity picture. Below are the indicators that researchers, civil-rights monitors, and funding formulas use to assess equity.
Economic need
9.3%
free-lunch eligible
— 83% below the California average of 55.5%
Below the 40% Title I threshold — federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
19.2:1
students per teacher
— 11% below state mean
Top 23% in California — lower ratio than 77% of state schools
Between 15:1 and 20:1 — in line with the typical U.S. public-school staffing range.
Engagement
0.3%
chronically absent (missed 10%+ of school days)
Below 10% — strong attendance relative to the post-pandemic national landscape.
Funding equity
$16,687
per pupil, district-wide
— below California avg of $18,039
Below the U.S. average per-pupil spend — funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors4.0 FTE
Per 222 students — the combined health-and-guidance staffing load for this school.
Discipline context
1
in-school suspensions + 3 out-of-school
Suspension rate: 0.1 per 100 students. Combined in-school and out-of-school rate: 0.5 per 100 students. Reported via the Civil Rights Data Collection.
Overview
Enrollment 886 Top 86% in California — larger than 14% of 10,006 state schools
Teachers (FTE) 42.0
Students per teacher 19.2:1 -11% vs state
Free-lunch eligible 9.3% -83% vs state
NCES ID 063486005886
Student demographics
Asian 60.5%
White 18.4%
Two or More 10.6%
Hispanic or Latino 9.4%
African American 0.9%
American Indian / Alaska Native 0.1%
Native Hawaiian / Pacific Islander 0.1%
Largest group: Asian at 60.5% of enrollment.
Programs & staff
AP courses offered 16
Counselors (FTE) 4.0
Students per counselor 222:1
Discipline & special education
Chronically absent 0.3%
In-school suspensions 1
Out-of-school suspensions 3
Funding & spending
District-wide per-pupil expenditure for San Marino Unified, which includes San Marino High.
$16,687
Per student
-7%
vs California
Avg $18,039
-14%
vs U.S.
Avg $19,490
Revenue mix
Local 63.7%
State 28.4%
Federal 7.9%
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.
Other Schools in This District
- Enrollment
- 777
- Students per teacher
- 22.9:1
- Enrollment
- 711
- Students per teacher
- 24:1
- Enrollment
- 709
- Students per teacher
- 20.9:1
Educator & family resources
In-depth guides on understanding NCES data, school choice, and education funding.
Understanding NCES data
How CCD, CRDC and EDFacts feed every public-school number you see.
Choose a school district
Eight signals that matter more than the overall ranking number.
How schools are funded
Title I, F-33, state aid formulas and what per-pupil spending really means.
Chronic absenteeism
Why missing 10% of school matters and how it varies by district.
Magnet vs charter vs traditional
Three school types, three funding models, three sets of trade-offs.
School discipline data
What CRDC suspension and expulsion records do and don't reveal.
Frequently asked questions about San Marino High
How many students attend San Marino High?
San Marino High has 886 students enrolled. It is a high school in San Marino, CA.
What is the student-teacher ratio at San Marino High?
The student-teacher ratio at San Marino High is 19.2:1, which is 11% lower than the California average of 21.6:1 and 21% higher than the national average of 15.9:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at San Marino High?
9.3% of students at San Marino High are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of San Marino High?
The largest demographic group at San Marino High is Asian at 60.5%. The school serves a diverse student body in San Marino, CA.
What is the Resource Investment Index for San Marino High?
San Marino High has a Resource Investment Index of 58/100 (C) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. This index measures federal resource allocation — staffing levels, program availability, and support services — not standardized test scores or academic outcomes.