- Enrollment
- 657
- Students per teacher
- 13.1:1
- Resource Index
- 45/100
High school (grades 9-12) · Mount Sinai, NY
Robert M Grable Jr Mount Sinai High School
Federal NCES profile for Robert M Grable Jr Mount Sinai High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 49/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 362004004827
👥 S:T ratio 54
🌟 Gifted program 30
🎓 Counselors 72
📋 Attendance 42
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Robert M Grable Jr Mount Sinai High School earns 49/100 on the Resource Investment Index, with class sizes near the New York median.
- #1 of 3
- public schools in Mount Sinai · Resource Index
- 49
- Resource Index · Higher
- 11.6:1
- students per teacher
- 8.5%
- free-lunch eligible
Robert M Grable Jr Mount Sinai High School has class sizes near the New York median. Computed live against every New York school reporting to NCES.
By Resource Investment Index, Robert M Grable Jr Mount Sinai High School ranks #1 of 3 public schools in Mount Sinai, NY.
School address
District: Mount Sinai Union Free School District · New York
NCES ID 362004004827 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-20 students YoY
Robert M Grable Jr Mount Sinai High School held near 700 students from 2022-23 to 2023-24 (-20 headcount).
Teacher FTE lost 61.5 → 60.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-20 students YoY 362004004827 · Mount Sinai, NY High · MID · TRAD
710 enr · 11.6:1 · 8.5% lunch · RII 49
Nearest enrollment peer: Mount Sinai Elementary School (657 students)
Robert M Grable Jr Mount Sinai High School held near 700 students from 2022-23 to 2023-24 (-20 headcount). Teacher FTE lost 61.5 → 60.0 across the same CCD years. Read with this school → · District book → · New York schools → · Find another →
Robert M Grable Jr Mount Sinai High School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- This school
Robert M Grable Jr Mount Sinai High School
710 students
- Mount Sinai El
Mount Sinai Elementary School
657 students
- Mount Sinai Mi
Mount Sinai Middle School
617 students
What this shows Robert M Grable Jr Mount Sinai High School reports 710 students on the CCD universe file.
How Robert M Grable Jr Mount Sinai High School compares
Robert M Grable Jr Mount Sinai 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 | 11.6:1 | ▼ 2% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 8.5% | ▼ 85% | 56.2% | 51.7% |
| Enrollment | 710 | top 18% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
11.6:1
Leaner classes than 79% of US schools, among the more generously staffed nationally.
710
Bigger than 81% of US schools by enrollment, a large campus nationally.
Equity indicators methodology
Economic need
8.5%
free-lunch eligible
- 85% 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
11.6:1
students per teacher
- 2% below state mean
Top 54% in New York - lower ratio than 46% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
23.2%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$28,847
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
Counselors5.0 FTE
Per 142 students, the combined health-and-guidance staffing load for this school.
Discipline context
9
in-school suspensions + 12 out-of-school
Suspension rate: 1.3 per 100 students. Combined in-school and out-of-school rate: 3.0 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 73.8%
Hispanic or Latino 14.1%
Asian 8.9%
Two or More 1.8%
African American 1.3%
Native Hawaiian / Pacific Islander 0.1%
Largest group: White at 73.8% of enrollment.
Student-body diversity index 42.7/100
Simpson diversity index - at 42.7, Robert M Grable Jr Mount Sinai High School is less mixed than the New York school average of 45.5.
Programs
AP courses offered 20
District finance for Mount Sinai Union Free School District reports $28,847 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Robert M Grable Jr Mount Sinai High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Mount Sinai Elementary School | Similar size | Similar economic need | Higher S:T ratio |
| Mount Sinai Middle School | Similar size | Similar economic need | Similar S:T ratio |
Comparisons are relative to Robert M Grable Jr Mount Sinai High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 617
- Students per teacher
- 10.3:1
- Resource Index
- 44/100
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 (~710 students)
Frequently asked questions about Robert M Grable Jr Mount Sinai High School
How many students attend Robert M Grable Jr Mount Sinai High School?
Robert M Grable Jr Mount Sinai High School has 710 students enrolled. It is a high school in Mount Sinai, NY. CCD year-over-year: 720 (2022-23) → 700 (2023-24), nearly flat (-20).
What is the student-teacher ratio at Robert M Grable Jr Mount Sinai High School?
The student-teacher ratio at Robert M Grable Jr Mount Sinai High School is 11.6:1, which is 2% lower than the New York average of 11.8:1 and 26% 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 Robert M Grable Jr Mount Sinai High School?
8.5% of students at Robert M Grable Jr Mount Sinai High School are eligible for free lunch, compared to the New York average of 56.2%.
What is the racial and ethnic makeup of Robert M Grable Jr Mount Sinai High School?
The largest demographic group at Robert M Grable Jr Mount Sinai High School is White at 73.8% of enrollment, in Mount Sinai, NY.
What is the Resource Investment Index for Robert M Grable Jr Mount Sinai High School?
Robert M Grable Jr Mount Sinai High School has a Resource Investment Index of 49/100 (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 Robert M Grable Jr Mount Sinai High School rank among public schools in Mount Sinai?
By Resource Investment Index, Robert M Grable Jr Mount Sinai High School ranks #1 of 3 public schools in Mount Sinai, NY. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking.
What other schools are in Mount Sinai Union Free School District?
Besides Robert M Grable Jr Mount Sinai High School, Mount Sinai Union Free School District also operates Mount Sinai Elementary School (657 students) and Mount Sinai Middle School (617 students). See the Mount Sinai Union Free School District district page for the complete list.