Serving 1,386 students in grades 9-12, Clarkstown South Senior 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 ≥95% (which is higher than the New York state average of 52%). The percentage of students achieving proficiency in reading/language arts is ≥90% (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 51% of the student body (majority Hispanic), which is lower than the New York state average of 61% (majority Hispanic).
Quick Facts (26-27)
- Grades: 9-12
- Enrollment: 1,386 students
- Student-Teacher Ratio: 12:1
- Minority Enrollment: 51%
- Graduation Rate: 97% (Top 5% in NY)
- Overall Testing Rank: Top 1%
- Math Proficiency: ≥95% (Top 1%)
- Reading Proficiency: ≥90% (Top 5%)
- Science Proficiency: 96% (Top 5%)
- Attendance Zone: Clarkstown South Senior High School serves the southern part of West Nyack, NY, covering an area of approximately 11.9 square miles. The typical drive to the school takes about 5 to 10 minutes, with the furthest edge of the attendance zone located 3.2 miles away.
- Source: National Center for Education Statistics (NCES), NY Dept. of Education
Top Rankings
Clarkstown South Senior High School ranks among the top 20% of public schools in New York for:
Category
Attribute
Overall Rank
Math Proficiency
Reading/Language Arts Proficiency
Science Proficiency
Graduation Rate
School Overview
Clarkstown South Senior High School's student population of 1,386 students has stayed relatively flat over five school years.
The teacher population of 114 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
(Supplemental Virtual)
(Supplemental Virtual)
Total Students
1,386 students
Showing 2016–2025. View full 39-year historical data
Total Classroom Teachers
114 teachers
Showing 2016–2025. View full 39-year historical data
Year Founded
1971
School Calendar
School Rankings
Clarkstown South Senior High School ranks within the top 1% of all 4,346 schools in New York (based off of combined math and reading proficiency testing data).
The diversity score of Clarkstown South Senior High School is 0.67, which is less than the diversity score at state average of 0.73. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#36 out of 4346 schools
(Top 1%)
(Top 1%)
Showing 2013–2023. View full 14-year historical data
Math Test Scores (% Proficient)
≥95%
52%
Showing 2013–2023. View full 14-year historical data
Reading/Language Arts Test Scores (% Proficient)
≥90%
49%
Showing 2012–2022. View full 13-year historical data
Science Test Scores (% Proficient)
96%
78%
Student-Teacher Ratio
12:1
11:1
Showing 2016–2025. View full 39-year historical data
Asian
16%
10%
Showing 2016–2025. View full 37-year historical data
Hispanic
26%
31%
Showing 2016–2025. View full 37-year historical data
Black
7%
15%
Showing 2016–2025. View full 37-year historical data
White
49%
39%
Showing 2016–2025. View full 37-year historical data
Two or more races
2%
4%
Showing 2016–2025. View full 15-year historical data
All Ethnic Groups
Showing 2016–2025. View full 37-year historical data
Graduation Rate
97%
87.2%
Showing 2014–2023. View full 13-year historical data
Chronically Absent Students
(22-23)17.5%
34.8%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
19%
55%
Showing 2016–2025. View full 32-year historical data
Eligible for Reduced Lunch
3%
2%
Showing 2015–2025. View full 26-year historical data
School Statewide Testing
School District Name
Sports
Colors
Brown, Gold
School Mascot
Viking
Source: National Center for Education Statistics (NCES), NY Dept. of Education
Frequently Asked Questions
What is Clarkstown South Senior High School's ranking?
Clarkstown South Senior High School is ranked #36 out of 4,346 schools, which ranks it among the top 1% of public schools in New York.
What schools are Clarkstown South Senior High School often compared to?
Clarkstown South Senior High Schoolis often viewed alongside schools like Clarkstown North Senior High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
≥95% of students have achieved math proficiency (compared to the 52% NY state average), while ≥90% of students have achieved reading proficiency (compared to the 49% NY state average).
What is the graduation rate of Clarkstown South Senior High School?
The graduation rate of Clarkstown South Senior High School is 97%, which is higher than the New York state average of 87.2%.
How many students attend Clarkstown South Senior High School?
1,386 students attend Clarkstown South Senior High School.
What is the racial composition of the student body?
49% of Clarkstown South Senior High School students are White, 26% of students are Hispanic, 16% of students are Asian, 7% of students are Black, and 2% of students are Two or more races.
What is the student-teacher ratio of Clarkstown South Senior High School?
Clarkstown South Senior High School has a student ration of 12:1, which is higher than the New York state average of 11:1.
What grades does Clarkstown South Senior High School offer ?
Clarkstown South Senior High School offers enrollment in grades 9-12 (Supplemental Virtual).
What school district is Clarkstown South Senior High School part of?
Clarkstown South Senior High School is part of Clarkstown Central School District.
School Reviews
Review Clarkstown South Senior High School. Reviews should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
Recent Articles
Is Your Child's School Day Too Structured?
Discover where free time disappears during your child's school day, how to evaluate lunch, recess, and classroom schedules, and what parents can do when breaks become structured activities.
When Your Child's Best Friend Is in Another Class
Discover how to help your child when their best friend is assigned to another classroom, including school placement policies, maintaining friendships, building connections, and knowing when to request help.
Should Your Child Repeat a Grade or Move Ahead?
Before agreeing to grade retention, learn what evidence to request, how to review school policies, explore alternatives, understand parental rights, and secure an effective academic support plan for your child.
