Enrollment
3,107
New York · 2024-25 NCES data
High school (grades 9-12) · Mastic Beach, NY
Federal NCES profile for William Floyd High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 48/100.
The verdict
William Floyd High School earns 48/100 on the Resource Investment Index, with class sizes larger than 82% of New York schools. It is also one of the largest schools in New York.
William Floyd High School has class sizes larger than 82% of New York schools. Computed live against every New York school reporting to NCES.
By Resource Investment Index, William Floyd High School ranks #1 of 3 public schools in Mastic Beach, NY.
NCES ID 361869004672 Verify on NCES CCD record →
Enrollment
3,107
New York · 2024-25 NCES data
Teachers (FTE)
217.0
Federal CCD staff survey
Students per teacher
14.3:1
vs 11.8:1 New York avg
+21% vs state
Free-lunch eligible
52.9%
vs 56.2% New York avg
-6% vs state
How William Floyd High School compares with New York and U.S. medians
Slightly above state median
14.3:1 - 2.5 above the New York state median of 11.8:1, indicating larger average class loads than typical schools in the state.
William Floyd High School is a higher-need, large high school in Mastic Beach, New York, enrolling 3,107 students.
Class loads run somewhat heavier than typical: 14.3:1 puts it in the larger third of New York schools by student-teacher ratio.
Its free-meal eligibility rate of 52.9% lands close to the New York typical range, neither a high- nor low-need campus by this measure.
By headcount it is one of the larger campuses in New York, bigger than 99% of state schools at 3,107 students.
Its Resource Investment Index sits near the middle of the pack among 4,801 scored New York schools.
Against 23 statewide peers matched on enrollment and economic need, it ranks mid-pack at #17.
Its student body is led by Hispanic or Latino (48%) and White (28%), more mixed than most schools in the state (diversity index 66/100).
On the academic-pipeline side it reports 16 Advanced Placement courses.
Counselor coverage runs a bit thin, about 311 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
William Floyd Union Free School District also operates William Floyd Middle School (1,124 students) and William Paca Middle School (1,078 students) alongside William Floyd High School.
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
William Floyd High School on the metrics families compare, against New York and U.S. means.
| Metric | This school | vs New York | New York avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 14.3:1 | ▲ 21% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 52.9% | ▼ 6% | 56.2% | 51.7% |
| Enrollment | 3,107 | top 1% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
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.
Largest group: Hispanic or Latino at 47.9% of enrollment.
Simpson diversity index - at 66.2, William Floyd High School is more mixed than the New York school average of 45.5.
District-wide per-pupil expenditure for William Floyd Union Free School District, which includes William Floyd High School.
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.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| William Floyd Middle School | Smaller | Similar economic need | Lower S:T ratio |
| William Paca Middle School | Smaller | Similar economic need | Lower S:T ratio |
| Moriches Elementary School | Smaller | Similar economic need | Similar S:T ratio |
| Nathaniel Woodhull Elementary School | Smaller | Similar economic need | Higher S:T ratio |
| John S Hobart Elementary School | Smaller | Similar economic need | Similar S:T ratio |
Comparisons are relative to William Floyd High School's own figures; each column derives from NCES Common Core of Data.
Matched by enrollment size and by staffing ratio across all of New York, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on William Floyd High School'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.
William Floyd High School has 3,107 students enrolled. It is a high school in Mastic Beach, NY.
The student-teacher ratio at William Floyd High School is 14.3:1, which is 21% higher than the New York average of 11.8:1 and 9% lower than the national average of 15.7:1.
52.9% of students at William Floyd High School are eligible for free lunch, compared to the New York average of 56.2%.
The largest demographic group at William Floyd High School is Hispanic or Latino at 47.9% of enrollment, in Mastic Beach, NY. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 66.2/100.
William Floyd High School has a Resource Investment Index of 48/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, AP course offerings, counselor availability. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, William Floyd High School ranks #1 of 3 public schools in Mastic Beach, NY. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Mastic Beach on the city page.
William Floyd High School earns 48/100 on the Resource Investment Index, with class sizes larger than 82% of New York schools. It is also one of the largest schools in New York. 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.
Besides William Floyd High School, William Floyd Union Free School District also operates William Floyd Middle School (1,124 students), William Paca Middle School (1,078 students), and Moriches Elementary School (861 students). See the William Floyd Union Free School District district page for the complete list.
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.
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PlainSchools, “William Floyd High School, Mastic Beach NY.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/william-floyd-high-school-ny
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