Seaford Union Free School District

Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. District totals are aggregated directly from the schools reporting under this district in the source records. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.

Seaford, New York - 4 schools

An equity score of 52/100 ranks Seaford Union Free School District #359 of 941 districts in New York (state average 45). Derived live from how evenly resources are distributed across the district's schools.

At $31,380 per pupil, Seaford Union Free School District ranks #171 of 999 New York districts by per-pupil spending (New York districts). NCES F-33 finance data.

2,200
Total Enrollment
4
Schools
$31,380
Per-Pupil Spending
Elementary, High
School Types

District-Level NCES Analysis

Seaford Union Free School District operates 4 public schools serving 2,200 students, placing it among the smallest districts in New York. The school portfolio breaks down into 2 elementary, 1 high, 1 middle schools, a small enough portfolio that most families will interact with nearly every campus in the district at some point. These enrollment and school figures come from the NCES Common Core of Data (CCD) 2024-25 release, and the district is based in Nassau County.

Per-pupil expenditure runs $31,380 according to the NCES F-33 School District Finance Survey, in the upper half of 999 New York districts by per-pupil spending. See how New York compares in our national per-pupil spending analysis. The funding mix is 68.8% local, 26.3% state, and 4.9% federal, a local-revenue-heavy mix that leaves the district more exposed to property-tax swings and local ballot measures than state-funded peers. The district's equity score is 52/100, ranked #359 of 941 in New York against a state average of 45, in line with the typical spread seen across the state for how evenly funding reaches its schools.

Academic infrastructure includes 1 of 4 schools offering Advanced Placement (22 AP courses district-wide), a 297.2:1 student-counselor ratio, somewhat above the 250:1 ASCA recommendation, and 13.6% chronic absenteeism from the 2021-22 Civil Rights Data Collection. Demographically, the student body averages 81.5% White, 11.3% Hispanic or Latino, 4.3% Asian across the district's schools. Its most demographically mixed campus is Seaford Manor School, with a diversity index of 39.5/100.

Its largest campus is Seaford Senior High School, enrolling 650 students (30% of the district's total enrollment).

Seaford Senior High School accounts for 29.5% of all Seaford Union Free School District student enrollment

That dominant concentration means Seaford Union Free School District-wide averages can mask substantial variation outside the dominant entity. Grade band: high. A single dominant campus often anchors a district's program offerings and staffing patterns; the share helps explain why district-wide averages may not reflect the typical neighbourhood-school experience. When one entity dominates a region's footprint, its programmatic and budget decisions effectively set policy for a majority of the affected population.

Source: NCES Common Core of Data NCES Common Core of Data

Seaford Union Free School District student-counselor ratio is 297:1 — near the typical range (US average ~408) — within the typical range for U.S. public districts

student-counselor ratio is the simplest comparative metric but it does not capture the full picture: the ratio counts FTE counselors against total enrollment, districts that contract intervention or social-emotional staff outside the counselor classification may be under-counted Variation between sub-units within Seaford Union Free School District is typically wider than the Seaford Union Free School District-aggregate figure suggests.

Source: NCES Civil Rights Data Collection NCES Civil Rights Data Collection

Seaford Union Free School District chronic absenteeism rate is 13.6% — low (typically associated with lower-than-average attendance disruption; districts in this range often have attendance interventions, robust transportation, or smaller catchments that reduce barriers)

chronic absenteeism rate is the simplest comparative metric but it does not capture the full picture: a student is chronically absent if they miss ≥10% of enrolled days for any reason, illness, family obligations, or disengagement Lower values often correlate with smaller scale and population characteristics rather than higher resource budgets per se.

Source: NCES Civil Rights Data Collection 2021-22 NCES Civil Rights Data Collection 2021-22

Where does the funding come from?

4.9%
Federal
26.3%
State
68.8%
Local

Funding Equity

52
Equity Score
359 / 941
State Rank
45
State Average

This district has moderate funding equity. There may be room to improve funding diversity or resource allocation.

Student Demographics

Average demographic composition across 4 schools in Seaford Union Free School District.

White 81.5%
Hispanic or Latino 11.3%
African American 0.6%
Asian 4.3%
Multiracial 2.2%

Source: NCES CCD School Membership 2024-25.

Student-body diversity

Average diversity index 31.9/100

Average Simpson diversity index across Seaford Union Free School District's schools, below the New York average of 45.5.

Most mixed schools

  1. 1 Seaford Manor School 39.5
  2. 2 Seaford Senior High School 31.2
  3. 3 Seaford Harbor School 31.1
  4. 4 Seaford Middle School 25.9

Programs & Resources

1 / 4
Schools with AP
22 AP courses total
297.2:1
Student-Counselor Ratio
13.6%
Chronically Absent

Source: NCES Civil Rights Data Collection (CRDC) 2021-22.

Schools in Seaford Union Free School District

School Enrollment
Seaford Senior High School
650
Seaford Harbor School
544
Seaford Middle School
522
Seaford Manor School
468

How Seaford Union Free School District Compares to Similar-Size Districts

The New York districts closest to this one in total enrollment.

District Enrollment Spending Funding Mix
Hudson Falls Central School District Similar size Lower spending Less locally funded
Batavia City School District Similar size Lower spending Less locally funded
Hendrick Hudson Central School District Similar size Similar spending More locally funded
Nanuet Union Free School District Similar size Similar spending Similar funding mix
Island Trees Union Free School District Similar size Similar spending Similar funding mix

Comparisons are relative to Seaford Union Free School District's own figures; each column derives from NCES Common Core of Data and the F-33 Finance Survey.

Nearby Districts in New York

Top districts in the same state, compare side-by-side for enrollment, spending, and demographics.

Compare Seaford Union Free School District

See how this district compares to others in enrollment, spending, demographics, and academic resources.

Compare vs New York City Geographic District #31 →

Frequently Asked Questions

How many schools are in Seaford Union Free School District?

Seaford Union Free School District has 4 schools, including 1 high, 2 elementary, 1 middle. Total enrollment is 2,200 students.

How much does Seaford Union Free School District spend per student?

Seaford Union Free School District spends $31,380 per student. The district has an equity score of 52/100, ranking #359 in New York.

What is the demographic composition of Seaford Union Free School District?

Seaford Union Free School District students are 81.5% White, 11.3% Hispanic or Latino, 4.3% Asian, 0.6% African American, averaged across 4 schools. Source: NCES CCD Membership 2024-25.

What is the equity score for Seaford Union Free School District?

Seaford Union Free School District has an equity score of 52/100, ranking #359 out of 941 districts in New York.