Seaford Senior High School

1575 Seamans Neck Rd, Seaford, NY 11783

ASchola Grade
Grades
9–12
High
Students
650
Enrolled 2024–25
Students per teacher
9.7 : 1
Full-time teachers
District
Seaford Union Free School District
Nassau County

Schola Grade A · Excellent

Letter grade (A–F) · compared with 1,093 New York high schools · How we grade
Test scores88% proficient in math & reading
76thpercentile
Equity90% of low-income students proficient
87thpercentile
Attendance6% chronically absent
98thpercentile
Graduation rate98% graduate in 4 years
86thpercentile
College readinessAt least 48% take AP, IB or dual-enrollment courses
89thpercentile
Class size9.7 students per teacher
73rdpercentile

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 Seaford Senior High School

Seaford Senior High School is a public high school in Seaford, New York, serving grades 9–12. It is part of Seaford Union Free School District. The school is located in a large suburb in Nassau County.

In the 2024–25 school year, 650 students were enrolled, with about 9.7 students for every full-time teacher. That ratio is smaller than the typical New York high school (10.7 students per teacher). Its Schola Grade is A (excellent), compared with 1,093 New York high schools.

Grades & enrollment

Students per grade, 2024–25Grades 9–12

Location & nearby schools

1575 Seamans Neck Rd
Seaford, NY 11783
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School details

Type
Public School · What this means
Level
High
Grades offered
9–12
Enrollment (2024–25)
650 students
Students per teacher
9.7 to 1
AP courses offered
21
Charter school
No
Magnet school
No
Locale
Suburb — Large
School district
Seaford Union Free School District
County
Nassau County
NCES school ID
362640003620

Schools near Seaford Senior High School

All 7 schools in Seaford →

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.