Serving 2,597 students in grades 9-12, Central Islip Senior High School ranks in the top 20% of all schools in New York for overall test scores (math proficiency is top 30%, and reading proficiency is top 30%).
The percentage of students achieving proficiency in math is 70% (which is higher than the New York state average of 46%). The percentage of students achieving proficiency in reading/language arts is 75-79% (which is higher than the New York state average of 49%).
The student:teacher ratio of 17:1 is higher than the New York state level of 11:1.
Minority enrollment is 98% of the student body (majority Hispanic), which is higher than the New York state average of 60% (majority Hispanic).
Quick Stats (2025)
- Grades: 9-12
- Enrollment: 2,597 students
- Student:Teacher Ratio: 17:1
- Minority Enrollment: 98%
- Graduation Rate: 87% (Btm 50% in NY)
- Overall Testing Rank: Top 20%
- Math Proficiency: 70% (Top 30%)
- Reading Proficiency: 75-79% (Top 20%)
- Science Proficiency: 77% (Btm 50%)
- Source: National Center for Education Statistics (NCES), NY Dept. of Education
Top Rankings
Central Islip Senior High School ranks among the top 20% of public schools in New York for:
Category
Attribute
Overall Rank
Reading/Language Arts Proficiency
School Overview
Central Islip Senior High School's student population of 2,597 students has grown by 10% over five school years.
The teacher population of 154 teachers has grown by 8% over five school years.
Grades Offered
Grades 9-12
(offers virtual instruction)
(offers virtual instruction)
Total Students
2,597 students
Gender %
Total Classroom Teachers
154 teachers
Students by Grade
School Rankings
Central Islip Senior High School ranks within the top 20% of all 4,377 schools in New York (based off of combined math and reading proficiency testing data).
The diversity score of Central Islip Senior High School is 0.31, 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
#629 out of 4377 schools
(Top 20%)
(Top 20%)
Math Test Scores (% Proficient)
70%
46%
Reading/Language Arts Test Scores (% Proficient)
75-79%
49%
Science Test Scores (% Proficient)
77%
78%
Student : Teacher Ratio
17:1
11:1
American Indian
n/a
1%
Asian
1%
10%
Hispanic
82%
30%
Black
14%
16%
White
2%
40%
Hawaiian
n/a
n/a
Two or more races
1%
3%
All Ethnic Groups
Graduation Rate
87%
87%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
64%
54%
Eligible for Reduced Lunch
2%
3%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), NY Dept. of Education
Frequently Asked Questions
What is Central Islip Senior High School's ranking?
Central Islip Senior High School is ranked #629 out of 4,377 schools, which ranks it among the top 20% of public schools in New York.
What percent of students have achieved state testing proficiency in math and reading?
70% of students have achieved math proficiency (compared to the 46% NY state average), while 75-79% of students have achieved reading proficiency (compared to the 49% NY state average).
What is the graduation rate of Central Islip Senior High School?
The graduation rate of Central Islip Senior High School is 87%, which is equal to the New York state average of 87%.
How many students attend Central Islip Senior High School?
2,597 students attend Central Islip Senior High School.
What is the racial composition of the student body?
82% of Central Islip Senior High School students are Hispanic, 14% of students are Black, 2% of students are White, 1% of students are Asian, and 1% of students are Two or more races.
What is the student:teacher ratio of Central Islip Senior High School?
Central Islip Senior High School has a student ration of 17:1, which is higher than the New York state average of 11:1.
What grades does Central Islip Senior High School offer ?
Central Islip Senior High School offers enrollment in grades 9-12 (offers virtual instruction).
What school district is Central Islip Senior High School part of?
Central Islip Senior High School is part of Central Islip Union Free School District.
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