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Mount Sinai Union Free School District Schools
Mount Sinai Union Free School District is a public school district in New York, based in Suffolk County (Mount Sinai). SchoolGrade grades 3 of its schools on actual versus projected test scores; every school below has its own page.
Mount Sinai Union Free School District on the map
District boundary from the NCES EDGE composite school district file. Each marker is a graded school; click it for its grade and scores.
SchoolGrade summary for Mount Sinai Union Free School District
3 of 3 schools in Mount Sinai Union Free School District carry a SchoolGrade. Grade distribution:
A: 3
Best schools in Mount Sinai Union Free School District
Statewide rankings: all 769 high schools in New York · all 439 middle schools in New York · all 1408 elementary schools in New York
The ten highest SchoolGrades in the district. Grades reward actual test performance against the projection for each school's student context, so a B in a high-poverty school can outrank an A- elsewhere on impact.
- A+ Robert M Grable JR Mount Sinai High School (High school, meets expectations)
- A+ Mount Sinai Elementary School (Elementary school, exceeds expectations)
- A+ Mount Sinai Middle School (Middle school, exceeds expectations)
Every school in Mount Sinai Union Free School District
Middle and junior high schools (2)
- A+ Mount Sinai Middle School, Mount Sinai
- A+ Robert M Grable JR Mount Sinai High School, Mount Sinai
Elementary and primary schools (1)
- A+ Mount Sinai Elementary School, Mount Sinai
Where Mount Sinai Union Free School District schools are
Cities and towns served (1)
- Mount Sinai (3)
About this district
- State: Best schools in New York
- County: Suffolk County
- Type: regular local school district
- Setting: large suburb (NCES locale of the district office)
- Enrollment: 2,074 students with 170 full-time-equivalent teachers and 340 total staff FTE (NCES CCD, 2023-24)
- NCES district ID: 3620040
- Grades are the 2025-26 SchoolGrade model: each school's actual proficiency against the level projected for its student context. How SchoolGrade works
Nearby school districts
- Miller Place Union Free School District (4 schools, 2 mi)
- Port Jefferson Union Free School District (3 schools, 3 mi)
- Brookhaven-Comsewogue Union Free School District (6 schools, 4 mi)
- Rocky Point Union Free School District (4 schools, 4 mi)
- Three Village Central School District (8 schools, 4 mi)
- Middle Country Central School District (14 schools, 7 mi)
- Shoreham-Wading River Central School District (4 schools, 8 mi)
- Longwood Central School District (7 schools, 8 mi)
Questions about Mount Sinai Union Free School District
How many schools are in Mount Sinai Union Free School District?
SchoolGrade grades 3 public schools in Mount Sinai Union Free School District, across 1 city or town. Every one of them is listed on this page with a link to its own report.
Which cities does Mount Sinai Union Free School District serve?
The largest by graded schools: Mount Sinai.
How good are the schools in Mount Sinai Union Free School District?
Across the 3 graded schools, the average SchoolGrade is A+, with 83.7% of tested students meeting the state bar against a projected 80.7%. 100% of schools meet or exceed the expectation for their student context.
How many students attend Mount Sinai Union Free School District?
2,074 students were enrolled in Mount Sinai Union Free School District in the 2023-24 school year, about 12.2 students per full-time teacher (NCES Common Core of Data).
Where is Mount Sinai Union Free School District?
Mount Sinai Union Free School District is in New York, based in Suffolk County, with its district office in Mount Sinai. Its boundary covers about 6.3 sq mi.