Mount Sinai 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, the data changelog, or report a data error. Data current as of August 2026.

Mount Sinai, New York - 3 schools

An equity score of 38/100 ranks Mount Sinai Union Free School District #593 of 931 districts in New York (state average 45). Derived live from how evenly resources are distributed across the district's schools.

At $28,847 per pupil, Mount Sinai Union Free School District ranks #354 of 986 New York districts by per-pupil spending (New York districts). NCES F-33 finance data.

2,076
Total Enrollment
3
Schools
$28,847
Per-Pupil Spending
Elementary, High
School Types

District-Level NCES Analysis

Mount Sinai Union Free School District operates 3 public schools serving 2,076 students, placing it among the smallest districts in New York. The school portfolio breaks down into 2 elementary, 1 high 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 Suffolk County.

Per-pupil expenditure runs $28,847 according to the NCES F-33 School District Finance Survey, in the upper half of 986 New York districts by per-pupil spending. See how New York compares in our national per-pupil spending analysis. The funding mix is 59.1% local, 32.7% state, and 8.3% 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 38/100, ranked #593 of 931 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 3 schools offering Advanced Placement (20 AP courses district-wide), a 225.3:1 student-counselor ratio, that meets the ASCA-recommended benchmark, and 20.0% chronic absenteeism from the 2021-22 Civil Rights Data Collection. Demographically, the student body averages 74.7% White, 15.1% Hispanic or Latino, 6.9% Asian across the district's schools. Its most demographically mixed campus is Mount Sinai Elementary School, with a diversity index of 44.3/100.

Its largest campus is Robert M Grable Jr Mount Sinai High School, enrolling 710 students (36% of the district's total enrollment).

Robert M Grable Jr Mount Sinai High School accounts for 34.2% of all Mount Sinai Union Free School District student enrollment

That dominant concentration means Mount Sinai Union Free School District-wide averages can mask substantial variation outside the largest entity. Grade band: high. The share measures enrollment concentration only; it does not establish how the district allocates programs, capital, or staff. Enrollment-weighted aggregates give this entity more weight than any smaller peer, while an unweighted entity average treats every record equally.

Source: NCES Common Core of Data

Mount Sinai Union Free School District student-counselor ratio is 225:1 — low (typically associated with meeting or exceeding the American School Counselor Association (ASCA) recommended 250:1 benchmark, which correlates with stronger college and career counseling capacity)

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 Lower values often correlate with smaller scale and population characteristics rather than higher resource budgets per se.

Source: NCES Civil Rights Data Collection

Mount Sinai Union Free School District chronic absenteeism rate is 20.0% — near the typical range (US average ~28) — aligned with the national post-pandemic baseline of roughly 28% chronic absenteeism

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 Variation between sub-units within Mount Sinai Union Free School District is typically wider than the Mount Sinai Union Free School District-aggregate figure suggests.

Source: NCES Civil Rights Data Collection 2021-22

Where does the funding come from?

8.3%
Federal
32.7%
State
59.1%
Local

Funding Equity

38
Equity Score
593 / 931
State Rank
45
State Average

This district scores below average on funding equity. High reliance on local revenue or lower spending may contribute.

Student Demographics

Average demographic composition across 3 schools in Mount Sinai Union Free School District.

White 74.7%
Hispanic or Latino 15.1%
African American 1.4%
Asian 6.9%
Multiracial 1.8%

Source: NCES CCD School Membership 2024-25.

Student-body diversity

Average diversity index 41.2/100

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

Most mixed schools

  1. 1 Mount Sinai Elementary School 44.3
  2. 2 Robert M Grable Jr Mount Sinai High School 42.7
  3. 3 Mount Sinai Middle School 36.7

Programs & Resources

1 / 3
Schools with AP
20 AP courses total
225.3:1
Student-Counselor Ratio
20.0%
Chronically Absent

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

Schools in Mount Sinai Union Free School District

School Enrollment
Robert M Grable Jr Mount Sinai High School
710
Mount Sinai Elementary School
657
Mount Sinai Middle School
617

How Mount Sinai 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
Mexico Central School District Similar size Similar spending Less locally funded
Iroquois Central School District Similar size Similar spending Similar funding mix
Hampton Bays Union Free School District Similar size Similar spending More locally funded
Wayne Central School District Similar size Lower spending Similar funding mix
North Bellmore Union Free School District Similar size Similar spending Similar funding mix

Comparisons are relative to Mount Sinai 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.

Nationwide districts with similar enrollment or spending

Out-of-state peers matched by enrollment and by per-pupil expenditure, not the same-state lists above.

Compare Mount Sinai 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 Mount Sinai Union Free School District?

Mount Sinai Union Free School District has 3 schools, including 1 high, 2 elementary. Total enrollment is 2,076 students.

How much does Mount Sinai Union Free School District spend per student?

Mount Sinai Union Free School District spends $28,847 per student. The district has an equity score of 38/100, ranking #593 in New York.

What is the demographic composition of Mount Sinai Union Free School District?

Mount Sinai Union Free School District students are 74.7% White, 15.1% Hispanic or Latino, 6.9% Asian, 1.4% African American, averaged across 3 schools. Source: NCES CCD Membership 2024-25.

What is the equity score for Mount Sinai Union Free School District?

Mount Sinai Union Free School District has an equity score of 38/100, ranking #593 out of 931 districts in New York.