Seaford High School is a public high school located in Seaford, New York, United States serving students in the ninth through twelfth grades. It is in the Seaford Union Free School District.
Serving 650 students in grades 9-12, Seaford Senior High School ranks in the top 10% of all schools in New York for overall test scores (math proficiency is top 20%, and reading proficiency is top 20%).
The percentage of students achieving proficiency in math is 70-74% (which is higher than the New York state average of 52%). The percentage of students achieving proficiency in reading/language arts is 80-89% (which is higher than the New York state average of 49%).
The student-teacher ratio of 10:1 is lower than the New York state level of 11:1.
Minority enrollment is 18% of the student body (majority Hispanic), which is lower than the New York state average of 61% (majority Hispanic).
Quick Facts (2026)
- Grades: 9-12
- Enrollment: 650 students
- Student-Teacher Ratio: 10:1
- Minority Enrollment: 18%
- Graduation Rate: ≥95% (Top 10% in NY)
- Overall Testing Rank: Top 10%
- Math Proficiency: 70-74% (Top 20%)
- Reading Proficiency: 80-89% (Top 10%)
- Science Proficiency: ≥95% (Top 5%)
- Source: National Center for Education Statistics (NCES), NY Dept. of Education
Top Rankings
Seaford Senior High School ranks among the top 20% of public schools in New York for:
Category
Attribute
Overall Rank
Math Proficiency
Reading/Language Arts Proficiency
Science Proficiency
Graduation Rate
School Overview
Seaford Senior High School's student population of 650 students has declined by 6% over five school years.
The teacher population of 67 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
(Supplemental Virtual)
(Supplemental Virtual)
Total Students
650 students
Total Classroom Teachers
67 teachers
Year Founded
1956
Colors
White, Green
School Calendar
School Motto
Anchored in Excellence
School Rankings
Seaford Senior High School ranks within the top 10% of all 4,346 schools in New York (based off of combined math and reading proficiency testing data).
The diversity score of Seaford Senior High School is 0.31, which is less than the diversity score at state average of 0.73. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#415 out of 4346 schools
(Top 10%)
(Top 10%)
Math Test Scores (% Proficient)
70-74%
52%
Reading/Language Arts Test Scores (% Proficient)
80-89%
49%
Science Test Scores (% Proficient)
≥95%
78%
Student-Teacher Ratio
10:1
11:1
American Indian
n/a
1%
Asian
4%
10%
Hispanic
12%
31%
Black
1%
15%
White
82%
39%
Hawaiian
n/a
n/a
Two or more races
1%
4%
All Ethnic Groups
Graduation Rate
≥95%
87%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
13%
55%
Eligible for Reduced Lunch
2%
2%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), NY Dept. of Education
School Notes
- School Mascot: Viking
Frequently Asked Questions
What is Seaford Senior High School's ranking?
Seaford Senior High School is ranked #415 out of 4,346 schools, which ranks it among the top 10% of public schools in New York.
What schools are Seaford Senior High School often compared to?
Seaford Senior High Schoolis often viewed alongside schools like Wantagh Senior High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
70-74% of students have achieved math proficiency (compared to the 52% NY state average), while 80-89% of students have achieved reading proficiency (compared to the 49% NY state average).
What is the graduation rate of Seaford Senior High School?
The graduation rate of Seaford Senior High School is 95%, which is higher than the New York state average of 87%.
How many students attend Seaford Senior High School?
650 students attend Seaford Senior High School.
What is the racial composition of the student body?
82% of Seaford Senior High School students are White, 12% of students are Hispanic, 4% of students are Asian, 1% of students are Black, and 1% of students are Two or more races.
What is the student-teacher ratio of Seaford Senior High School?
Seaford Senior High School has a student ration of 10:1, which is lower than the New York state average of 11:1.
What grades does Seaford Senior High School offer ?
Seaford Senior High School offers enrollment in grades 9-12 (Supplemental Virtual).
What school district is Seaford Senior High School part of?
Seaford Senior High School is part of Seaford Union Free School District.
School Reviews
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