Excellent
#50 of 4,742 schools in NY
Top 1% in state
Seaford Senior High School
High School · Seaford Union Free School District · Seaford, NY
A Seaford Union Free School District high school where students score 34 points above what's typical for similar communities.
1575 SEAMANS NECK RD, Seaford, NY 11783
- Math 98% proficient (2021)
- Reading 98% proficient (2021)
- 95%+ 4-year graduation
Academics
Full Profile · 4/4 metricsView breakdown
View breakdown
View breakdown
View breakdown
Students at Seaford Senior High School score 98% proficient, which is above what's typical for similar communities (expected: 64%).
2021 EdFacts proficiency
Most recent published year. School vs. NY average.
Trend
→ SteadyProficiency has held near 98% across the 13-year record (2009–2021).
Show all 13 years
Multi-year averages used by the rating model: math 94% (multi-year average, 2009-2021) · reading/ELA 96% (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
14.5%
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 Seaford Senior 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 29Car-Dependent
- Bike 33Somewhat Bikeable
- County Safety: Elevated982/100K
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
$164,128
Median home value
$626,700
Median rent
$2,806/mo
College educated
45.8%
Homeownership
93.3%
Poverty rate
2.9%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 11783; 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 |
|---|---|---|---|---|---|
| Wantagh Senior High SchoolEnrollment path unverified | 9.0 | 9–12 | 1.1 mi | 833 | Compare → |
| Gen Douglas Macarthur Senior High SchoolEnrollment path unverified | 8.8 | 9–12 | 1.4 mi | 1,263 | Compare → |
| Plainedge Senior High SchoolEnrollment path unverified | 8.6 | 9–12 | 1.4 mi | 847 | Compare → |
| Mhs Ames CampusEnrollment path unverified | 5.0 | 8–9 | 1.5 mi | 469 | 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.
Seaford Union Free School District
- Schools in district
- 4
- Rank in district
- #1 of 4
- District spending per student
- $32,645NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- 2.5%Census SAIPE · 2024
Seaford Senior High School is listed in SEAFORD UNION FREE SCHOOL DISTRICT; a district label does not verify attendance for an address.
About Seaford Senior High School
Seaford Senior High School is a public high school in Seaford, NY, part of Seaford Union Free School District, serving approximately 668 students in grades 9th-12th with a 10.1:1 student-teacher ratio. It holds a MySchoolScout rating of 9.2 out of 10 and ranks #50 of 4,742 schools in NY. State assessment records show 94% math proficiency (multi-year average, 2009-2021) and 96% reading/ELA proficiency (multi-year average, 2009-2021).
What's said publicly about Seaford Senior High School
Synthesized from public, attributable sources. Updated May 2026.
Sources (1)
Frequently asked questions
Common questions about Seaford Senior High School
What grades does Seaford Senior High School serve?
Seaford Senior High School serves students in grades 9th through 12th.
How many students attend Seaford Senior High School?
Seaford Senior High School has an enrollment of approximately 668 students.
What is the student-teacher ratio at Seaford Senior High School?
The student-teacher ratio at Seaford Senior High School is 10.1:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Seaford Senior High School rank in NY?
Seaford Senior High School ranks #50 of 4,742 schools in NY.
What is Seaford Senior High School's MySchoolScout rating?
Seaford Senior High School has a current MySchoolScout rating of 9.2 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 Seaford Senior High School?
Based on loaded state assessment records, Seaford Senior High School has 94% math proficiency (multi-year average, 2009-2021) and 96% reading/ELA proficiency (multi-year average, 2009-2021).
Is Seaford Senior High School a charter school?
No, Seaford Senior High School is not a charter school. It is a traditional public school operated by the local school district.
Is Seaford Senior High School a Title I school?
No, Seaford Senior High School is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Seaford Senior High School?
14.5% of students at Seaford Senior 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
- 668
- Student-Teacher Ratio
- 10.1:1
- Teachers (FTE)
- 66
- Type
- regular
- Setting
- Large Suburb
- County
- Nassau County
- Chronic Absenteeism (SY 2022-23)
- 6.1%
- Phone
- (516) 592-4380
- 4-Year Graduation
- 95%+
- Area population (ZIP 11783)
- 21,588
- Area average commute
- 37.6 min
- Area median age
- 41.4
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 11783; 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
Related reading
- Best Public Schools in New York 2026: Top Districts from NYC to the Suburbsbest schools
- Best Schools in New York, NY — 2026 Rankingsbest schools
- Best States for Public Schools in 2026: A Complete Rankingdata insights
- Charter Schools vs Public Schools: What the Data Actually Shows (2026)school choice
- Student-Teacher Ratio by State: Complete 2026 Rankingsdata insights
Get school insights in your inbox
New rankings, best-schools lists, and parent guides — delivered free. No spam, unsubscribe anytime.
We respect your privacy. Unsubscribe at any time.