Enrollment
2,504
California · 2024-25 NCES data
High school (grades 9-12) · Fullerton, CA
Troy High
Federal NCES profile for Troy High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 47/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 061476001816
👥 S:T ratio 8
📚 AP courses 100
🌟 Gifted program 30
🎓 Counselors 17
📋 Attendance 79
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Troy High earns 47/100 on the Resource Investment Index, with class sizes near the California median. It is also one of the largest schools in California.
- #3 of 5
- high schools in Fullerton · Resource Index
- 47
- Resource Index · Typical
- 23:1
- students per teacher
- 26.9%
- free-lunch eligible
Troy High has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Troy High ranks #3 of 5 high schools in Fullerton, CA.
School address
District: Fullerton Joint Union High · California
NCES ID 061476001816 Verify on NCES CCD record →
Teachers (FTE)
109.0
Federal CCD staff survey
Students per teacher
23:1
vs 21.5:1 California avg
+7% vs state
Free-lunch eligible
26.9%
vs 55.5% California avg
-52% vs state
Student-teacher ratio in context
How Troy High compares with California and U.S. medians
What stands out at Troy High
Troy High is a large high school in Fullerton, California, enrolling 2,504 students.
Class loads run somewhat heavier than typical: 23:1 puts it in the larger third of California schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 26.9% of students eligible for free meals.
By headcount it is one of the larger campuses in California, bigger than 99% of state schools at 2,504 students.
Its Resource Investment Index sits near the middle of the pack among 9,998 scored California schools.
Against 229 statewide peers matched on enrollment and economic need, it ranks mid-pack at #109.
Its student body is led by Asian (52%) and Hispanic or Latino (28%) (diversity index 63/100).
On the academic-pipeline side it reports 25 Advanced Placement courses.
Counselor access is stretched at roughly 417 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Attendance holds up well here: only 8.3% of students were chronically absent, below the typical post-pandemic national figure.
The federal civil-rights collection also records 3 expulsions at this campus for 2021-22.
Among Fullerton's high schools, it stands alongside Sunny Hills High (2,337 students): Troy High is larger than that campus by headcount and runs leaner classes (23:1 vs 26:1).
Fullerton Joint Union High also operates Sunny Hills High (2,337 students) and La Habra High (1,881 students) alongside Troy 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 Troy High compares
Troy 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 | 23:1 | ▲ 7% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 26.9% | ▼ 52% | 55.5% | 51.7% |
| Enrollment | 2,504 | top 1% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
23:1
Leaner classes than 8% of US schools, heavier class loads than most.
2,504
Bigger than 99% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
26.9%
free-lunch eligible
- 52% 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
23:1
students per teacher
- 7% above state mean
Top 62% in California - lower ratio than 38% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Engagement
8.3%
chronically absent (missed 10%+ of school days)
In the 5-10% range, close to the pre-pandemic national baseline.
Funding equity
$14,663
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
Counselors6.0 FTE
Per 417 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 28 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 1.1 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
Asian 52.1%
Hispanic or Latino 28.4%
White 11.0%
Two or More 6.7%
African American 1.1%
Native Hawaiian / Pacific Islander 0.4%
American Indian / Alaska Native 0.2%
Largest group: Asian at 52.1% of enrollment.
Student-body diversity index 63.1/100
Simpson diversity index - at 63.1, Troy High is more mixed than the California school average of 46.0.
Programs
AP courses offered 25
Funding & spending
District-wide per-pupil expenditure for Fullerton Joint Union High, which includes Troy High.
$14,663
Per student
-11%
vs California
Avg $16,509
-12%
vs U.S.
Avg $16,593
Revenue mix
Local 50.4%
State 41.3%
Federal 8.3%
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 Troy High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Sunny Hills High | Similar size | Similar economic need | Higher S:T ratio |
| La Habra High | Similar size | Higher economic need | Similar S:T ratio |
| Fullerton Union High | Similar size | Higher economic need | Higher S:T ratio |
| Sonora High | Smaller | Higher economic need | Higher S:T ratio |
| Buena Park High | Smaller | Higher economic need | Similar S:T ratio |
Comparisons are relative to Troy 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
- 1,880
- Students per teacher
- 25.1:1
- Resource Index
- 20/100
- 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.
Sunny Hills High
Standard public school
2,337 students 26:1 students per teacher
Fullerton Union High
Standard public school
1,880 students 25.1:1 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
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 (~2,504 students)
Similar student-teacher ratio (~23:1)
Next steps
Verify locally before acting on Troy High's federal record.
- Compare Troy High against another school. Compare schools
- Fullerton Joint 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 Troy High
How many students attend Troy High?
Troy High has 2,504 students enrolled. It is a high school in Fullerton, CA.
What is the student-teacher ratio at Troy High?
The student-teacher ratio at Troy High is 23:1, which is 7% higher than the California average of 21.5:1 and 46% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Troy High?
26.9% of students at Troy High are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Troy High?
The largest demographic group at Troy High is Asian at 52.1% of enrollment, in Fullerton, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 63.1/100.
What is the Resource Investment Index for Troy High?
Troy High has a Resource Investment Index of 47/100 (typical 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 Troy High rank among high schools in Fullerton?
By Resource Investment Index, Troy High ranks #3 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.
Is Troy High a good school?
Troy High earns 47/100 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 Fullerton Joint Union High?
Besides Troy High, Fullerton Joint Union High also operates Sunny Hills High (2,337 students), La Habra High (1,881 students), and Fullerton Union High (1,880 students). See the Fullerton Joint 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.