Average
#2242 of 4,742 schools in NY
Top 47% in state
William Floyd High School
High School · WILLIAM FLOYD UNION FREE SCHOOL DISTRICT
240 MASTIC BEACH RD, Mastic Beach, NY 11951
Enrollment
3,123
Student-Teacher
14:1
Score
6.4
Grades
9th – 12th
Enrollment
3,123
Student-Teacher
14:1
Score
6.4
Grades
9th – 12th
Data vintage
2022-23
Data vintage2022-23
How this school compares
New York schools
#2,242 of 4,742
In Mastic Beach
#1 of 3
public schools
In district
#2 of 9
WILLIAM FLOYD UNION FREE SCHOOL DISTRICT
Academic performance
8.9 / 10
Excellent
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William Floyd High School
High School in Mastic Beach · grades 9th – 12th. Start here, then compare fit against nearby and district options.
William Paca Middle School
0.2 mi away. Use as a geographic alternative in the same move search.
Nathaniel Woodhull Elementary School
0.2 mi away. Use as a geographic alternative in the same move search.
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. William Floyd High School serves approximately 3,123 students, and covers grades 9th-12th, and has a 14:1 student-teacher ratio. William Floyd High School has a current MySchoolScout rating of 6.4 out of 10 and ranks #2,242 of 4,742 schools in NY.
Structured state assessment records for William Floyd High School 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)
- This school 6.4 · Average
- NY avg 7.0
What Parents Should Know
William Floyd High School is a large school: 3,123 students. Size usually brings more course choices and activities than a smaller school can staff, but kids can also blend into the crowd. Ask how the school keeps students known and supported.
70% of students at William Floyd High School were chronically absent in the 2022-23 school year, above the national average. Chronic absenteeism means missing 15 or more school days, and at high rates it drags on classroom pacing for everyone. Ask what the school does to help families get kids to class consistently.
Score Breakdown
Full Profile · 4/4 metricsView breakdown
View breakdown
View breakdown
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William Floyd High School — Students at William Floyd High School score 76% proficient, which is above what's typical for similar communities (expected: 51%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
53.3%
Students qualifying for federal meal assistance
Test Scores NY EDFACTS (2020-21)
Based on 26 test records from NY state assessments. About our data
Proficiency Trend
↓ DecliningAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 6.9/10.
How William Floyd High School Compares
See how William Floyd High School performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Programs & Offerings
Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more
Location
240 MASTIC BEACH RD, Mastic Beach, NY 11951
Nearby Alternatives
Families considering William Floyd High School may also want to explore other high schools in the area. CENTER MORICHES HIGH SCHOOL (rated 8.4/10, 2.9 miles away, in nearby Center Moriches), which scores notably higher. Another option is BELLPORT SENIOR HIGH SCHOOL (rated 7.5/10, 3.8 miles away, in nearby Brookhaven), which scores notably higher. Additionally, EASTPORT-SOUTH MANOR JUNIOR SENIOR HIGH SCHOOL (rated 7.0/10, 3.8 miles away, in nearby Manorville), which scores slightly higher. For more schools in Mastic Beach, see our Mastic Beach schools guide .
Nearby Schools
20 within 4.7 miNeighborhood Census ACS (2019-2023)
Census data for ZIP 11951 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$108,877
Median Home Value
$321,200
Median Rent
$2,313/mo
Population
15,830
College Educated
20.5%
Homeownership
81.2%
Avg Commute
37.8 min
Poverty Rate
22.2%
Median Age
38.4
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| FRANKLIN DELANO ROOSEVELT HIGH SCHOOL Brooklyn, NY | 6.5 |
| JOHN BOWNE HIGH SCHOOL Flushing, NY | 6.2 |
| NEWTOWN HIGH SCHOOL Elmhurst, NY | 6.7 |
| THOMAS R PROCTOR HIGH SCHOOL Utica, NY | 6.1 |
| CENTRAL ISLIP SENIOR HIGH SCHOOL Central Islip, NY | 6.8 |
| HEMPSTEAD HIGH SCHOOL Hempstead, NY | 6.8 |
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.
Neighborhood Context
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Quick Facts NCES CCD (SY 2022-23)
- Grades
- 9th – 12th
- Enrollment
- 3,123
- Student-Teacher Ratio
- 14:1
- Teachers (FTE)
- 223
- Free/Reduced Lunch
- 53.3%
- Type
- regular
- Setting
- Large Suburb
- County
- Suffolk County
- Chronic Absenteeism (SY 2022-23)
- 70.0%
- Phone
- (631) 874-1660
- 4-Year Graduation
- 91.0%
Resources & Links
District
WILLIAM FLOYD UNION FREE SCHOOL DISTRICT- District Enrollment
- 9,417
- Schools in District
- 9
- Per-Pupil Spending
- $29,684
- District Rank
- #2 of 9
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.
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