- Enrollment
- 2,748
- Students per teacher
- 25.4:1
- Resource Index
- 20/100
High school (grades 9-12) · Chino Hills, CA
Ruben S. Ayala High
Federal NCES profile for Ruben S. Ayala High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 27/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 060846009757
👥 S:T ratio 1
🌟 Gifted program 30
🎓 Counselors 27
📋 Attendance 49
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Ruben S. Ayala High earns 27/100 on the Resource Investment Index, with class sizes larger than 77% of California schools. It is also one of the largest schools in California.
- #2 of 3
- high schools in Chino Hills · Resource Index
- 27
- Resource Index · Lower
- 24.7:1
- large classes for California
- 22.2%
- free-lunch eligible
Ruben S. Ayala High has class sizes larger than 77% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Ruben S. Ayala High ranks #2 of 3 high schools in Chino Hills, CA.
School address
District: Chino Valley Unified · California
NCES ID 060846009757 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-88 students YoY
Ruben S. Ayala High held near 2,529 students from 2022-23 to 2023-24 (-88 headcount).
Teacher FTE lost 103.6 → 99.8 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-88 students YoY 060846009757 · Chino Hills, CA High · LARGE · TRAD
2,541 enr · 24.7:1 · 22.2% lunch · RII 27
Nearest enrollment peer: Chino Hills High (2,748 students)
Ruben S. Ayala High held near 2,529 students from 2022-23 to 2023-24 (-88 headcount). Teacher FTE lost 103.6 → 99.8 across the same CCD years. Read with this school → · District book → · California schools → · Find another →
Ruben S. Ayala High in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Chino Hills Hi
Chino Hills High
2,748 students
- This school
Ruben S. Ayala High
2,541 students
- Chino High
Chino High
2,077 students
- Don Antonio Lu
Don Antonio Lugo High
1,256 students
- Canyon Hills J 1,070
Canyon Hills Junior High
1,070 students
- Cal Aero Prese 982
Cal Aero Preserve Academy
982 students
What this shows Ruben S. Ayala High reports 2,541 students on the CCD universe file.
How Ruben S. Ayala High compares
Ruben S. Ayala High held steady on CCD headcount: ratios and free-lunch share vs California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 24.7:1 | ▲ 15% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 22.2% | ▼ 60% | 55.5% | 51.7% |
| Enrollment | 2,541 | top 1% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
24.7:1
Leaner classes than 5% of US schools, heavier class loads than most.
2,541
Bigger than 99% of US schools by enrollment, a large campus nationally.
Equity indicators methodology
Economic need
22.2%
free-lunch eligible
- 60% 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
24.7:1
students per teacher
- 15% above state mean
Top 77% in California - lower ratio than 23% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Engagement
20.3%
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
$14,518
per pupil, district-wide
- below California avg of $18,665
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors7.0 FTE
Per 363 students, the combined health-and-guidance staffing load for this school.
Discipline context
7
in-school suspensions + 69 out-of-school
Suspension rate: 0.3 per 100 students. Combined in-school and out-of-school rate: 3.0 per 100 students. Reported via the Civil Rights Data Collection. Includes 4 expulsions.
Student demographics
Asian 41.8%
Hispanic or Latino 38.9%
White 13.3%
Two or More 3.2%
African American 2.3%
Native Hawaiian / Pacific Islander 0.4%
Largest group: Asian at 41.8% of enrollment.
Student-body diversity index 65.5/100
Simpson diversity index - at 65.5, Ruben S. Ayala High is more mixed than the California school average of 46.0.
Programs
AP courses offered 27
District finance for Chino Valley Unified reports $14,518 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Ruben S. Ayala High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Chino Hills High | Similar size | Similar economic need | Similar S:T ratio |
| Chino High | Similar size | Higher economic need | Similar S:T ratio |
| Don Antonio Lugo High | Smaller | Higher economic need | Lower S:T ratio |
| Canyon Hills Junior High | Smaller | Similar economic need | Higher S:T ratio |
| Cal Aero Preserve Academy | Smaller | Similar economic need | Lower S:T ratio |
Comparisons are relative to Ruben S. Ayala High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,077
- Students per teacher
- 23.9:1
- Resource Index
- 25/100
- Enrollment
- 1,256
- Students per teacher
- 16.7:1
- Resource Index
- 30/100
- Enrollment
- 1,070
- Students per teacher
- 28.2:1
- Resource Index
- 44/100
- Enrollment
- 982
- Students per teacher
- 14.4:1
- Resource Index
- 28/100
Similar high schools in Chino Hills
2 comparable high schools (grades 9-12) serving the same city.
Nationwide high schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~2,541 students)
Frequently asked questions about Ruben S. Ayala High
How many students attend Ruben S. Ayala High?
Ruben S. Ayala High has 2,541 students enrolled. It is a high school in Chino Hills, CA. CCD year-over-year: 2,617 (2022-23) → 2,529 (2023-24), nearly flat (-88).
What is the student-teacher ratio at Ruben S. Ayala High?
The student-teacher ratio at Ruben S. Ayala High is 24.7:1, which is 15% higher than the California average of 21.5:1 and 57% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Ruben S. Ayala High?
22.2% of students at Ruben S. Ayala High are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Ruben S. Ayala High?
The largest demographic group at Ruben S. Ayala High is Asian at 41.8% of enrollment, in Chino Hills, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 65.5/100.
What is the Resource Investment Index for Ruben S. Ayala High?
Ruben S. Ayala High has a Resource Investment Index of 27/100 (lower reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Ruben S. Ayala High rank among high schools in Chino Hills?
By Resource Investment Index, Ruben S. Ayala High ranks #2 of 3 high schools in Chino Hills, 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 Chino Hills on the city page.
What other schools are in Chino Valley Unified?
Besides Ruben S. Ayala High, Chino Valley Unified also operates Chino Hills High (2,748 students), Chino High (2,077 students), and Don Antonio Lugo High (1,256 students). See the Chino Valley Unified district page for the complete list.