- Enrollment
- 544
- Students per teacher
- 11.3:1
- Resource Index
- 47/100
High school (grades 9-12) · Seaford, NY
Seaford Senior High School
Federal NCES profile for Seaford Senior High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 60/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 362640003620
👥 S:T ratio 62
🌟 Gifted program 30
🎓 Counselors 68
📋 Attendance 80
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Seaford Senior High School earns 60/100 on the Resource Investment Index, with class sizes smaller than 76% of New York schools.
- #1 of 5
- public schools in Seaford · Resource Index
- 60
- Resource Index · Higher
- 9.6:1
- small classes for New York
- 14.1%
- free-lunch eligible
Seaford Senior High School has class sizes smaller than 76% of New York schools. Computed live against every New York school reporting to NCES.
By Resource Investment Index, Seaford Senior High School ranks #1 of 5 public schools in Seaford, NY.
School address
District: Seaford Union Free School District · New York
NCES ID 362640003620 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+10 students YoY
Seaford Senior High School held near 668 students from 2022-23 to 2023-24 (+10 headcount).
Teacher FTE lost 68.6 → 66.7 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
+10 students YoY 362640003620 · Seaford, NY High · MID · TRAD
650 enr · 9.6:1 · 14.1% lunch · RII 60
Nearest enrollment peer: Seaford Harbor School (544 students)
Seaford Senior High School held near 668 students from 2022-23 to 2023-24 (+10 headcount). Teacher FTE lost 68.6 → 66.7 across the same CCD years. Read with this school → · District book → · New York schools → · Find another →
Seaford Senior High School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- This school
Seaford Senior High School
650 students
- Seaford Harbor
Seaford Harbor School
544 students
- Seaford Middle
Seaford Middle School
522 students
- Seaford Manor
Seaford Manor School
468 students
What this shows Seaford Senior High School reports 650 students on the CCD universe file.
How Seaford Senior High School compares
Seaford Senior High School held steady on CCD headcount: ratios and free-lunch share vs New York and U.S. means.
| Metric | This school | vs New York | New York avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 9.6:1 | ▼ 19% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 14.1% | ▼ 75% | 56.2% | 51.7% |
| Enrollment | 650 | top 22% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
9.6:1
Leaner classes than 91% of US schools, among the more generously staffed nationally.
650
Bigger than 77% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
14.1%
free-lunch eligible
- 75% below the New York average of 56.2%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
9.6:1
students per teacher
- 19% below state mean
Top 24% in New York - lower ratio than 76% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
8.2%
chronically absent (missed 10%+ of school days)
In the 5-10% range, close to the pre-pandemic national baseline.
Funding equity
$32,363
per pupil, district-wide
- above New York avg of $28,120
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors4.0 FTE
Per 163 students, the combined health-and-guidance staffing load for this school.
Discipline context
13
in-school suspensions + 13 out-of-school
Suspension rate: 2.0 per 100 students. Combined in-school and out-of-school rate: 4.0 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 82.0%
Hispanic or Latino 11.4%
Asian 4.3%
African American 1.2%
Two or More 1.1%
Largest group: White at 82.0% of enrollment.
Student-body diversity index 31.2/100
Simpson diversity index - at 31.2, Seaford Senior High School is less mixed than the New York school average of 45.5.
Programs
AP courses offered 22
District finance for Seaford Union Free School District reports $32,363 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Seaford Senior High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Seaford Harbor School | Similar size | Similar economic need | Higher S:T ratio |
| Seaford Middle School | Similar size | Similar economic need | Similar S:T ratio |
| Seaford Manor School | Smaller | Similar economic need | Higher S:T ratio |
Comparisons are relative to Seaford Senior High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 522
- Students per teacher
- 9.2:1
- Resource Index
- 60/100
- Enrollment
- 468
- Students per teacher
- 11.4:1
- Resource Index
- 40/100
Nationwide high schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~650 students)
Frequently asked questions about Seaford Senior High School
How many students attend Seaford Senior High School?
Seaford Senior High School has 650 students enrolled. It is a high school in Seaford, NY. CCD year-over-year: 658 (2022-23) → 668 (2023-24), nearly flat (+10).
What is the student-teacher ratio at Seaford Senior High School?
The student-teacher ratio at Seaford Senior High School is 9.6:1, which is 19% lower than the New York average of 11.8:1 and 39% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Seaford Senior High School?
14.1% of students at Seaford Senior High School are eligible for free lunch, compared to the New York average of 56.2%.
What is the racial and ethnic makeup of Seaford Senior High School?
The largest demographic group at Seaford Senior High School is White at 82.0% of enrollment, in Seaford, NY.
What is the Resource Investment Index for Seaford Senior High School?
Seaford Senior High School has a Resource Investment Index of 60/100 (higher reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Seaford Senior High School rank among public schools in Seaford?
By Resource Investment Index, Seaford Senior High School ranks #1 of 5 public schools in Seaford, NY. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Seaford on the city page.
What other schools are in Seaford Union Free School District?
Besides Seaford Senior High School, Seaford Union Free School District also operates Seaford Harbor School (544 students), Seaford Middle School (522 students), and Seaford Manor School (468 students). See the Seaford Union Free School District district page for the complete list.