Average
#2242 of 4,742 schools in NY
Top 47% in state
William Floyd High School
High School · William Floyd Union Free School District · Mastic Beach, NY
A William Floyd Union Free School District high school where students score 25 points above what's typical for similar communities.
240 MASTIC BEACH RD, Mastic Beach, NY 11951
- Math 65% proficient (2021)
- Reading 87% proficient (2021)
- 91.0% 4-year graduation
Academics
Full Profile · 4/4 metricsView breakdown
View breakdown
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Students at William Floyd High School score 76% proficient, which is above what's typical for similar communities (expected: 51%).
2021 EdFacts proficiency
Most recent published year. School vs. NY average.
Trend
→ SteadyProficiency is down 14 points across the 13-year record (2009–2021) and has held near 76% recently.
Show all 13 years
Multi-year averages used by the rating model: math 77% (multi-year average, 2009-2021) · reading/ELA 89% (multi-year average, 2009-2021)
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Based on 26 test records from NY state assessments and EdFacts (NCES).
Equity & diversity
Shown separately, not included in the overall scoreFree/reduced lunch
53.3%
Students qualifying for federal meal assistance
How we rate schools
A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.
See how we rateThe neighborhood
Where William Floyd High School sits, and what the surrounding area looks like.
Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries. Open the New York map →
Getting around & local context
- Walk 37Car-Dependent
- Bike 40Somewhat Bikeable
- County Safety: Low3/100K
Powered by
FBI Uniform Crime Reporting · 2024 · county context, not school-level safety or attendance eligibility. Source details
Source period: 2024. A newer release may be available.
Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)
Median income
$108,877
Median home value
$321,200
Median rent
$2,313/mo
College educated
20.5%
Homeownership
81.2%
Poverty rate
22.2%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 11951; this is area context, not an attendance boundary.
Programs & students
Programs & Offerings
Compare nearby
Nearby same-level schools
4 from a 5-mile search
| School | Score | Grades | Distance | Enrollment | Compare |
|---|---|---|---|---|---|
| Center Moriches High SchoolEnrollment path unverified | 8.4 | 9–12 | 2.9 mi | 541 | Compare → |
| Bellport Senior High SchoolEnrollment path unverified | 7.5 | 9–12 | 3.8 mi | 1,382 | Compare → |
| Eastport-south Manor Junior Senior High SchoolEnrollment path unverified | 7.0 | 7–12 | 3.8 mi | 1,543 | Compare → |
| Leonard E Burket Christian SchoolPrivate · tuition | 4.7private | PK–12 | 4.0 mi | 83 | Compare → |
Distance is proximity only; it is not attendance eligibility.
Enrollment path unverified: Potential public school; its attendance or application path has not been classified.
Private · tuition: Potential private option; tuition and admission requirements have not been verified.
Public and private scores come from different models and are shown side by side, not blended into one ranking.
William Floyd Union Free School District
- Schools in district
- 9
- Rank in district
- #2 of 9
- District spending per student
- $29,684NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- 12.8%Census SAIPE · 2024
William Floyd High School is listed in WILLIAM FLOYD UNION FREE SCHOOL DISTRICT; a district label does not verify attendance for an address.
About William Floyd High School
William Floyd High School is a public high school in Mastic Beach, NY, part of William Floyd Union Free School District, serving approximately 3,123 students in grades 9th-12th with a 14:1 student-teacher ratio. It holds a MySchoolScout rating of 6.4 out of 10 and ranks #2,242 of 4,742 schools in NY. State assessment records show 77% math proficiency (multi-year average, 2009-2021) and 89% reading/ELA proficiency (multi-year average, 2009-2021).
What's said publicly about William Floyd High School
Synthesized from public, attributable sources. Updated April 2026.
Sources (2)
Frequently asked questions
Common questions about William Floyd High School
What grades does William Floyd High School serve?
William Floyd High School serves students in grades 9th through 12th.
How many students attend William Floyd High School?
William Floyd High School has an enrollment of approximately 3,123 students.
What is the student-teacher ratio at William Floyd High School?
The student-teacher ratio at William Floyd High School is 14:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does William Floyd High School rank in NY?
William Floyd High School ranks #2,242 of 4,742 schools in NY.
What is William Floyd High School's MySchoolScout rating?
William Floyd High School has a current MySchoolScout rating of 6.4 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at William Floyd High School?
Based on loaded state assessment records, William Floyd High School has 77% math proficiency (multi-year average, 2009-2021) and 89% reading/ELA proficiency (multi-year average, 2009-2021).
Is William Floyd High School a charter school?
No, William Floyd High School is not a charter school. It is a traditional public school operated by the local school district.
Is William Floyd High School a Title I school?
No, William Floyd High School is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for William Floyd High School?
53.3% of students at William Floyd High School qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
School factsNCES Common Core of Data (CCD) (SY 2023–24)
- Grades
- 9th – 12th
- Enrollment
- 3,123
- Student-Teacher Ratio
- 14:1
- Teachers (FTE)
- 223
- Type
- regular
- Setting
- Large Suburb
- County
- Suffolk County
- Chronic Absenteeism (SY 2022-23)
- 70.0%
- Phone
- (631) 874-1660
- 4-Year Graduation
- 91.0%
- Area population (ZIP 11951)
- 15,830
- Area average commute
- 37.8 min
- Area median age
- 38.4
Official sources & links
About this school's data
Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.
- School directory (enrollment, grades, staff, contact)
- NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
- Source period: SY 2023–24. A newer release may be available.
- MySchoolScout rating and rank
- MySchoolScout ranking model · Low confidence
- Vintage not available. Do not use this measure alone.
- Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
- Math proficiency
- State department of education · 2021 EdFacts · Low confidence
- Older source: 2021 EdFacts. Use as historical context.
- Available for part of the eligible units; results may not represent the full area.
- Derived from source records rather than read directly from one field.
- Reading/ELA proficiency
- State department of education · 2021 EdFacts · Low confidence
- Older source: 2021 EdFacts. Use as historical context.
- Available for part of the eligible units; results may not represent the full area.
- Derived from source records rather than read directly from one field.
- Student progress (growth)
- NCES EdFacts · Mixed source periods · Low confidence
- Vintage not available. Do not use this measure alone.
- Available for part of the eligible units; results may not represent the full area.
- Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
- Neighborhood (income, housing, education)
- U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
- Older source: ACS 2019–2023 5-year estimates. Use as historical context.
- Reported for the ZCTA for ZIP 11951; this does not measure the attendance area.
- Programs (AP/IB, athletics, gifted)
- CRDC via Urban Institute · SY 2021–22 · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: SY 2021–22. A newer release may be available.
Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2021; directory SY 2023–24
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