Top Rankings
Islip Union Free School District ranks among the top 20% of public school district in New York for:
Category
Attribute
Graduation Rate
Highest graduation rate (Top 5%)
Diversity
Most diverse schools (Top 1%)
Community Size
Largest student body (number of students) (Top 1%)
For the 2026 school year, there is 1 public high school serving 890 students in Islip Union Free School District. This district's average high testing ranking is 8/10, which is in the top 30% of public high schools in New York.
Public High School in Islip Union Free School District have an average math proficiency score of 72% (versus the New York public high school average of 55%), and reading proficiency score of 72% (versus the 59% statewide average).
Public High School in Islip Union Free School District have a Graduation Rate of 97%, which is more than the New York average of 89%.
The school with highest graduation rate is Islip High School, with 97% graduation rate. Read more about public school graduation rate statistics in New York or national school graduation rate statistics.
Minority enrollment is 53% of the student body (majority Hispanic), which is less than the New York public high school average of 62% (majority Hispanic).
Overview
This School District
This State (NY)
# Schools
5 Schools
1,470 Schools
# Students
2,652 Students
953,631 Students
# Teachers
259 Teachers
85,681 Teachers
Student-Teacher Ratio
10:1
10:1
Student By Grade
District Rank
Islip Union Free School District, which is ranked #730 of all 1,008 school districts in New York (based off of combined math and reading proficiency testing data) for the 2022-2023 school year.
The school district's graduation rate of 97% has stayed relatively flat over five school years.
Overall District Rank
#696 out of 1017 school districts
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
42%
52%
Reading/Language Arts Test Scores (% Proficient)
42%
49%
Science Test Scores (% Proficient)
88%
78%
Graduation Rate
97%
87%
Chronically Absent Students
(2022-23)20.5%
34.8%
Students by Ethnicity:
Diversity Score
0.64
0.73
% American Indian
n/a
1%
% Asian
5%
9%
% Hispanic
39%
31%
% Black
6%
18%
% White
46%
38%
% Hawaiian
n/a
n/a
% Two or more races
4%
3%
All Ethnic Groups
District Revenue and Spending
The revenue/student of $33,266 is higher than the state median of $31,369. The school district revenue/student has stayed relatively flat over four school years.
The school district's spending/student of $31,870 is less than the state median of $32,246. The school district spending/student has grown by 5% over four school years.
Total Revenue
$88 MM
$78,541 MM
Spending
$85 MM
$80,737 MM
Revenue / Student
$33,266
$31,369
Spending / Student
$31,870
$32,246
Best Islip Union Free School District Public High Schools (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Islip High School
(Math: 70-74% | Reading: 70-74%)
Rank:
Rank:
9/
Top 20%10
2508 Union Blvd
Islip, NY 11751
(631) 650-8301
Islip, NY 11751
(631) 650-8301
Gr: 9-12 | 890 students Student-teacher ratio: 10:1 Minority enrollment: 53%
Recent Articles
Gifted, Honors, and Advanced Tracks: Are They Accessible or Just Advertised?
Learn how to evaluate gifted, honors, and advanced academic programs in public schools, including admission criteria, equity, and the questions every parent should ask.
Algebra Readiness: What Parents Should Ask Before Middle School
Discover how to determine if your child is ready for algebra before middle school, including the questions parents should ask and the skills students need to succeed.
How to Evaluate Reading Instruction in Your Zoned Elementary School
Learn how to evaluate reading instruction in your neighborhood elementary school by recognizing effective literacy practices, asking the right questions, and understanding what quality reading instruction looks like.
