- Enrollment
- 2,504
- Students per teacher
- 23:1
- Resource Index
- 33/100
High school (grades 9-12) · Fullerton, CA
Fullerton Union High
Federal NCES profile for Fullerton Union High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 20/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 061476001810
👥 S:T ratio 0
🌟 Gifted program 30
🎓 Counselors 6
📋 Attendance 43
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Fullerton Union High earns 20/100 on the Resource Investment Index, with class sizes larger than 80% of California schools. It is also one of the largest schools in California.
- #5 of 5
- high schools in Fullerton · Resource Index
- 20
- Resource Index · Lower
- 25.1:1
- large classes for California
- 50.1%
- free-lunch eligible
Fullerton Union High has class sizes larger than 80% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Fullerton Union High ranks #5 of 5 high schools in Fullerton, CA.
School address
District: Fullerton Joint Union High · California
NCES ID 061476001810 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-32 students YoY
Fullerton Union High held near 1,848 students from 2022-23 to 2023-24 (-32 headcount).
Teacher FTE lost 75.1 → 73.4 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-32 students YoY 061476001810 · Fullerton, CA High · MID · TRAD
1,880 enr · 25.1:1 · 50.1% lunch · RII 20
Nearest enrollment peer: Troy High (2,504 students)
Fullerton Union High held near 1,848 students from 2022-23 to 2023-24 (-32 headcount). Teacher FTE lost 75.1 → 73.4 across the same CCD years. Read with this school → · District book → · California schools → · Find another →
Fullerton Union High in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Troy High
Troy High
2,504 students
- Sunny Hills Hi
Sunny Hills High
2,337 students
- La Habra High
La Habra High
1,881 students
- This school
Fullerton Union High
1,880 students
- Sonora High
Sonora High
1,779 students
- Buena Park Hig
Buena Park High
1,682 students
What this shows Fullerton Union High reports 1,880 students on the CCD universe file.
How Fullerton Union High compares
Fullerton Union 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 | 25.1:1 | ▲ 17% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 50.1% | ▼ 10% | 55.5% | 51.7% |
| Enrollment | 1,880 | top 4% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
25.1:1
Leaner classes than 5% of US schools, heavier class loads than most.
1,880
Bigger than 98% of US schools by enrollment, a large campus nationally.
Equity indicators methodology
Economic need
50.1%
free-lunch eligible
- 10% 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
25.1:1
students per teacher
- 17% above state mean
Top 80% in California - lower ratio than 20% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Engagement
22.6%
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
$15,701
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
Counselors4.0 FTE
Per 470 students, the combined health-and-guidance staffing load for this school.
Discipline context
10
in-school suspensions + 91 out-of-school
Suspension rate: 0.5 per 100 students. Combined in-school and out-of-school rate: 5.4 per 100 students. Reported via the Civil Rights Data Collection. Includes 1 expulsion.
Student demographics
Hispanic or Latino 67.7%
White 17.1%
Asian 7.6%
Two or More 6.4%
African American 1.0%
American Indian / Alaska Native 0.1%
Native Hawaiian / Pacific Islander 0.1%
Largest group: Hispanic or Latino at 67.7% of enrollment.
Student-body diversity index 50.2/100
Simpson diversity index - at 50.2, Fullerton Union High is more mixed than the California school average of 46.0.
Programs
AP courses offered 17
District finance for Fullerton Joint Union High reports $15,701 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Fullerton Union High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Troy High | Larger | Lower economic need | Lower S:T ratio |
| Sunny Hills High | Similar size | Lower economic need | Similar S:T ratio |
| La Habra High | Similar size | Similar economic need | Lower S:T ratio |
| Sonora High | Similar size | Similar economic need | Similar S:T ratio |
| Buena Park High | Similar size | Higher economic need | Lower S:T ratio |
Comparisons are relative to Fullerton Union High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,337
- Students per teacher
- 26:1
- Resource Index
- 29/100
- Enrollment
- 1,881
- Students per teacher
- 22.7:1
- Resource Index
- 24/100
- Enrollment
- 1,779
- Students per teacher
- 24.7:1
- Resource Index
- 24/100
- Enrollment
- 1,682
- Students per teacher
- 22.7:1
- Resource Index
- 24/100
Similar high schools in Fullerton
4 comparable high schools (grades 9-12) serving the same city.
Troy High
Standard public school
2,504 students 23:1 students per teacher
Sunny Hills High
Standard public school
2,337 students 26:1 students per teacher
La Vista High (Continuation)
Alternative education program
298 students 14.9:1 students per teacher
La Sierra High (Alternative)
Alternative education program
236 students 10.7:1 students per teacher
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 (~1,880 students)
Similar student-teacher ratio (~25.1:1)
Frequently asked questions about Fullerton Union High
How many students attend Fullerton Union High?
Fullerton Union High has 1,880 students enrolled. It is a high school in Fullerton, CA. CCD year-over-year: 1,880 (2022-23) → 1,848 (2023-24), nearly flat (-32).
What is the student-teacher ratio at Fullerton Union High?
The student-teacher ratio at Fullerton Union High is 25.1:1, which is 17% higher than the California average of 21.5:1 and 60% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Fullerton Union High?
50.1% of students at Fullerton Union High are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Fullerton Union High?
The largest demographic group at Fullerton Union High is Hispanic or Latino at 67.7% of enrollment, in Fullerton, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 50.2/100.
What is the Resource Investment Index for Fullerton Union High?
Fullerton Union High has a Resource Investment Index of 20/100 (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 Fullerton Union High rank among high schools in Fullerton?
By Resource Investment Index, Fullerton Union High ranks #5 of 5 high schools in Fullerton, 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 Fullerton on the city page.
What other schools are in Fullerton Joint Union High?
Besides Fullerton Union High, Fullerton Joint Union High also operates Troy High (2,504 students), Sunny Hills High (2,337 students), and La Habra High (1,881 students). See the Fullerton Joint Union High district page for the complete list.