High school (grades 9-12) · Las Flores, CA

Tesoro High

Federal NCES profile for Tesoro High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 51/100.

2024-25 NCES dataHigh school (grades 9-12)NCES 060744008750
0/100100/10051/100
👥 S:T ratio
12
📚 AP courses
100
🌟 Gifted program
70
🎓 Counselors
19
📋 Attendance
55
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →

The verdict

Tesoro High earns 51/100 on the Resource Investment Index, with class sizes near the California median. It is also one of the largest schools in California.

51
Resource Index · Higher
22.1:1
students per teacher
13.5%
free-lunch eligible
2,030
students enrolled

Tesoro High has class sizes near the California median. Computed live against every California school reporting to NCES.

Enrollment

2,030

California · 2024-25 NCES data

Teachers (FTE)

92.0

Federal CCD staff survey

Students per teacher

22.1:1

vs 21.5:1 California avg

+3% vs state

Free-lunch eligible

13.5%

vs 55.5% California avg

-76% vs state

Student-teacher ratio in context

How Tesoro High compares with California and U.S. medians

Slightly above state median

Source: NCES Common Core of Data As of 2024-25 federal staff survey Total enrollment ÷ full-time-equivalent classroom teachers

What stands out at Tesoro High

Tesoro High is a lower-poverty, large high school in Las Flores, California, enrolling 2,030 students.

At 22.1:1, 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.

Comparatively few students face economic hardship here, 13.5% free-meal eligibility runs 76% below the California average.

By headcount it is one of the larger campuses in California, bigger than 97% of state schools at 2,030 students.

Its Resource Investment Index lands in the upper third of 9,998 scored California schools.

Against 191 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #46.

Its student body is led by White (56%) and Hispanic or Latino (16%) (diversity index 62/100).

On the academic-pipeline side it reports 22 Advanced Placement courses.

Counselor access is stretched at roughly 406 students per counselor, well above the ASCA-recommended 250:1 ceiling.

17.9% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.

Capistrano Unified also operates San Clemente High (2,740 students) and San Juan Hills High (2,641 students) alongside Tesoro 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 Tesoro High compares

Tesoro 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 22.1:1 ▲ 3% 21.5:1 15.7:1
Free-lunch eligible 13.5% ▼ 76% 55.5% 51.7%
Enrollment 2,030 top 3% - -

Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25

22.1:1
Leaner classes than 10% of US schools, heavier class loads than most.
2,030
Bigger than 98% of US schools by enrollment, a large campus nationally.

Equity indicators (what these measure)

Economic need
13.5%
free-lunch eligible - 76% below the California average of 55.5%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
22.1:1
students per teacher - 3% above state mean
Top 54% in California - lower ratio than 46% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Engagement
17.9%
chronically absent (missed 10%+ of school days)
In the 15-20% range, nearing the "high" absenteeism threshold.
Funding equity
$14,421
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
Counselors5.0 FTE
Per 406 students, the combined health-and-guidance staffing load for this school.
Discipline context
41
in-school suspensions + 17 out-of-school
Suspension rate: 2.0 per 100 students. Combined in-school and out-of-school rate: 2.9 per 100 students. Reported via the Civil Rights Data Collection.

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

White 56.1%
Hispanic or Latino 16.2%
Asian 15.9%
Two or More 10.3%
African American 1.4%
American Indian / Alaska Native 0.1%

Largest group: White at 56.1% of enrollment.

Student-body diversity index 62.3/100

Simpson diversity index - at 62.3, Tesoro High is more mixed than the California school average of 46.0.

Programs

AP courses offered 22
Gifted & talented Yes

Funding & spending

District-wide per-pupil expenditure for Capistrano Unified, which includes Tesoro High.

$14,421
Per student
-13%
vs California
Avg $16,509
-13%
vs U.S.
Avg $16,593
Revenue mix
Local 61.2%
State 31.0%
Federal 7.7%

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 Tesoro High Compares to District-Mates

School Enrollment Economic Profile Student-Teacher Ratio
San Clemente High Larger Higher economic need Similar S:T ratio
San Juan Hills High Larger Higher economic need Similar S:T ratio
Aliso Niguel High Larger Similar economic need Similar S:T ratio
Capistrano Valley High Similar size Higher economic need Similar S:T ratio
Dana Hills High Similar size Higher economic need Lower S:T ratio

Comparisons are relative to Tesoro High's own figures; each column derives from NCES Common Core of Data.

Other Schools in This District

Capistrano Unified · 5 sibling schools

View district profile

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.

Next steps

Verify locally before acting on Tesoro High's federal record.

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 Tesoro High

How many students attend Tesoro High?

Tesoro High has 2,030 students enrolled. It is a high school in Las Flores, CA.

What is the student-teacher ratio at Tesoro High?

The student-teacher ratio at Tesoro High is 22.1:1, which is 3% higher than the California average of 21.5:1 and 41% higher than the national average of 15.7:1.

What percentage of students receive free lunch at Tesoro High?

13.5% of students at Tesoro High are eligible for free lunch, compared to the California average of 55.5%.

What is the racial and ethnic makeup of Tesoro High?

The largest demographic group at Tesoro High is White at 56.1% of enrollment, in Las Flores, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 62.3/100.

What is the Resource Investment Index for Tesoro High?

Tesoro High has a Resource Investment Index of 51/100 (higher 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).

Is Tesoro High a good school?

Tesoro High earns 51/100 on the Resource Investment Index, with class sizes near the California median. It is also one of the largest schools in California. 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 Capistrano Unified?

Besides Tesoro High, Capistrano Unified also operates San Clemente High (2,740 students), San Juan Hills High (2,641 students), and Aliso Niguel High (2,563 students). See the Capistrano Unified district page for the complete list.

Source: National Center for Education Statistics (NCES) CCD + Public School Universe (2024-25), CRDC (2021-22), F-33 District Finance Survey (FY 2021-22) · 2024-25 Data as of the 2024-25 school year. Coverage from U.S. Department of Education NCES Common Core of Data. Varies by entity type; administrative districts and certain charter networks may report only a subset of fields.

All federal data sources used on this page

Full source list and how we compute each figure: methodology page.

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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.