List your school
Public SchoolHigh

William Floyd High School

240 Mastic Beach Rd, Mastic Beach, NY 11951

CSchola Grade
Directions CallWebsite
Grades
9–12
High
Students
3,107
Enrolled 2024–25
Students per teacher
13.9 : 1
Full-time teachers
District
William Floyd Union Free School District
Suffolk County

Schola Grade C · Average

Letter grade (A–F) · compared with 1,093 New York high schools · How we grade
Test scores70% proficient in math & reading
52ndpercentile
Equity66% of low-income students proficient
52ndpercentile
Attendance73% chronically absent
9thpercentile
Graduation rate91% graduate in 4 years
40thpercentile
College readinessAt least 42% take AP, IB or dual-enrollment courses
81stpercentile
Class size13.9 students per teacher
12thpercentile

Percentiles compare this school with other New York high schools; the line marks the middle. Data: test scores 2021–22, graduation and absenteeism 2022–23 (U.S. Department of Education, EDFacts); coursework 2023–24 (Civil Rights Data Collection); staffing 2024–25 (NCES).

About William Floyd High School

William Floyd High School is a public high school in Mastic Beach, New York, serving grades 9–12. It is part of William Floyd Union Free School District. The school is located in a large suburb in Suffolk County.

In the 2024–25 school year, 3,107 students were enrolled, with about 13.9 students for every full-time teacher. That ratio is larger than the typical New York high school (10.7 students per teacher). Its Schola Grade is C (average), compared with 1,093 New York high schools.

Grades & enrollment

Students per grade, 2024–25Grades 9–12

Location & nearby schools

240 Mastic Beach Rd
Mastic Beach, NY 11951
Open in Google Maps

School details

Type
Public School · What this means
Level
High
Grades offered
9–12
Enrollment (2024–25)
3,107 students
Students per teacher
13.9 to 1
AP courses offered
16
Charter school
No
Magnet school
No
Locale
Suburb — Large
School district
William Floyd Union Free School District
County
Suffolk County
NCES school ID
361869004672

Schools near William Floyd High School

All 3 schools in Mastic Beach →

School data comes from the U.S. Department of Education: the National Center for Education Statistics (NCES) Common Core of Data and EDGE school locations (2024–25) and Private School Survey (2023–24), the Civil Rights Data Collection (2023–24), and EDFacts (test results 2021–22; graduation and chronic absenteeism 2022–23), plus other public sources. Please contact the school to confirm enrollment, programs, and other details. How we source data.