Ossining High School is a comprehensive public high school located in Ossining, New York, United States, along the Hudson River in northern Westchester County, New York. Serving grades 9 through 12, it is the sole high school within the Ossining Union Free School District.
Serving 1,598 students in grades 9-12, Ossining High School ranks in the top 50% of all schools in New York for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 40-44% (which is lower than the New York state average of 52%). The percentage of students achieving proficiency in reading/language arts is 65-69% (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 83% of the student body (majority Hispanic), which is higher than the New York state average of 60% (majority Hispanic).
Quick Facts (2025)
- Grades: 9-12
- Enrollment: 1,598 students
- Student-Teacher Ratio: 12:1
- Minority Enrollment: 83%
- Graduation Rate: 81% (Btm 50% in NY)
- Overall Testing Rank: Top 50%
- Math Proficiency: 40-44% (Btm 50%)
- Reading Proficiency: 65-69% (Top 20%)
- Science Proficiency: 89% (Top 50%)
- Source: National Center for Education Statistics (NCES), NY Dept. of Education
Top Rankings
Ossining High School ranks among the top 20% of public schools in New York for:
Category
Attribute
Reading/Language Arts Proficiency
School Overview
Ossining High School's student population of 1,598 students has stayed relatively flat over five school years.
The teacher population of 129 teachers has grown by 28% over five school years.
Grades Offered
Grades 9-12
(Supplemental Virtual)
(Supplemental Virtual)
Total Students
1,598 students
Gender %
Total Classroom Teachers
129 teachers
School Calendar
First Day of School
Mon. Sep 1, 2025
Last Day of School
Thu. Jun 25, 2026
School Rankings
Ossining High School ranks within the top 50% of all 4,346 schools in New York (based off of combined math and reading proficiency testing data).
The diversity score of Ossining High School is 0.50, 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.
Overall Testing Rank
#1778 out of 4346 schools
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
40-44%
52%
Reading/Language Arts Test Scores (% Proficient)
65-69%
49%
Science Test Scores (% Proficient)
89%
78%
Student-Teacher Ratio
12:1
11:1
American Indian
n/a
1%
Asian
3%
10%
Hispanic
68%
30%
Black
9%
16%
White
17%
40%
Hawaiian
n/a
n/a
Two or more races
3%
3%
All Ethnic Groups
Graduation Rate
81%
87%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
53%
54%
Eligible for Reduced Lunch
4%
3%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), NY Dept. of Education
Profile last updated: 02/09/2025
Frequently Asked Questions
What is Ossining High School's ranking?
Ossining High School is ranked #1778 out of 4,346 schools, which ranks it among the top 50% of public schools in New York.
What percent of students have achieved state testing proficiency in math and reading?
40-44% of students have achieved math proficiency (compared to the 52% NY state average), while 65-69% of students have achieved reading proficiency (compared to the 49% NY state average).
What is the graduation rate of Ossining High School?
The graduation rate of Ossining High School is 81%, which is lower than the New York state average of 87%.
How many students attend Ossining High School?
1,598 students attend Ossining High School.
What is the racial composition of the student body?
68% of Ossining High School students are Hispanic, 17% of students are White, 9% of students are Black, 3% of students are Asian, and 3% of students are Two or more races.
What is the student-teacher ratio of Ossining High School?
Ossining High School has a student ration of 12:1, which is higher than the New York state average of 11:1.
What grades does Ossining High School offer ?
Ossining High School offers enrollment in grades 9-12 (Supplemental Virtual).
What school district is Ossining High School part of?
Ossining High School is part of Ossining Union Free School District.
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