Serving 700 students in grades 9-12, Robert M Grable Jr Mount Sinai High School ranks in the top 1% of all schools in New York for overall test scores (math proficiency is top 1%, and reading proficiency is top 1%).
The percentage of students achieving proficiency in math is ≥99% (which is higher than the New York state average of 46%). The percentage of students achieving proficiency in reading/language arts is ≥95% (which is higher than the New York state average of 49%).
The student:teacher ratio of 12:1 is higher than the New York state level of 11:1.
Minority enrollment is 25% of the student body (majority Hispanic), which is lower than the New York state average of 60% (majority Hispanic).
Quick Stats (2025)
Grades: 9-12
Enrollment: 700 students
Student:Teacher Ratio: 12:1
Minority Enrollment: 25%
Graduation Rate
: ≥95% (Top 10% in NY)
Overall Testing Rank
: Top 1%
Math Proficiency
: ≥99% (Top 1%)
Reading Proficiency
: ≥95% (Top 1%)
Science Proficiency
: 96% (Top 5%)
Source: National Center for Education Statistics (NCES), NY Dept. of Education
Robert M Grable Jr Mount Sinai High School ranks within the top 1% of all 4,377 schools in New York (based off of combined math and reading proficiency testing data).
The diversity score of Robert M Grable Jr Mount Sinai High School is 0.42, which is less than the diversity score at state average of 0.72. The school's diversity has stayed relatively flat over five school years.
What is Robert M Grable Jr Mount Sinai High School's ranking?
Robert M Grable Jr Mount Sinai High School is ranked #4 out of 4,377 schools, which ranks it among the top 1% of public schools in New York.
What schools are Robert M Grable Jr Mount Sinai High School often compared to?
Robert M Grable Jr Mount Sinai High Schoolis often viewed alongside schools like Miller Place High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
≥99% of students have achieved math proficiency (compared to the 46% NY state average), while ≥95% of students have achieved reading proficiency (compared to the 49% NY state average).
What is the graduation rate of Robert M Grable Jr Mount Sinai High School?
The graduation rate of Robert M Grable Jr Mount Sinai High School is 95%, which is higher than the New York state average of 87%.
How many students attend Robert M Grable Jr Mount Sinai High School?
700 students attend Robert M Grable Jr Mount Sinai High School.
What is the racial composition of the student body?
75% of Robert M Grable Jr Mount Sinai High School students are White, 14% of students are Hispanic, 8% of students are Asian, 2% of students are Black, and 1% of students are Two or more races.
What is the student:teacher ratio of Robert M Grable Jr Mount Sinai High School?
Robert M Grable Jr Mount Sinai High School has a student ration of 12:1, which is higher than the New York state average of 11:1.
What grades does Robert M Grable Jr Mount Sinai High School offer ?
Robert M Grable Jr Mount Sinai High School offers enrollment in grades 9-12 (offers virtual instruction).
What school district is Robert M Grable Jr Mount Sinai High School part of?
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Quick Stats (2025)
Grades: 9-12
Enrollment: 700 students
Student:Teacher Ratio: 12:1
Minority Enrollment: 25%
Graduation Rate
: ≥95% (Top 10%)
Overall Testing Rank
: Top 1%
Math Proficiency
: ≥99% (Top 1%)
Reading Proficiency
: ≥95% (Top 1%)
Science Proficiency
: 96% (Top 5%)
Source: National Center for Education Statistics (NCES), NY Dept. of Education
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