Top Rankings
Central Islip Union Free School District ranks among the top 20% of public school district in New York for:
Category
Attribute
Community Size
Largest student body (number of students) (Top 1%)
For the 2026-27 school year, there are 8 public schools serving 7,773 students in Central Islip Union Free School District. This district's average testing ranking is 2/10, which is in the bottom 50% of public schools in New York.
Public Schools in Central Islip Union Free School District have an average math proficiency score of 34% (versus the New York public school average of 53%), and reading proficiency score of 31% (versus the 49% statewide average).
Minority enrollment is 98% of the student body (majority Hispanic), which is more than the New York public school average of 61% (majority Hispanic).
Overview
This School District
This State (NY)
# Schools
8 Schools
4,805 Schools
# Students
7,773 Students
2,500,885 Students
# Teachers
542 Teachers
218,084 Teachers
Student-Teacher Ratio
14:1
14:1
Student By Grade
District Rank
Central Islip Union Free School District, which is ranked #906 of all 1,007 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 80% has decreased from 85% over five school years.
Overall District Rank
#910 out of 1017 school districts
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
34%
52%
Reading/Language Arts Test Scores (% Proficient)
31%
49%
Science Test Scores (% Proficient)
65%
78%
Graduation Rate
80%
87.2%
Chronically Absent Students
(2022-23)45.5%
34.8%
Students by Ethnicity:
Diversity Score
0.32
0.73
% American Indian
n/a
1%
% Asian
1%
10%
% Hispanic
82%
31%
% Black
13%
15%
% White
2%
39%
% Hawaiian
n/a
n/a
% Two or more races
2%
4%
All Ethnic Groups
District Revenue and Spending
The revenue/student of $37,368 is higher than the state median of $34,989. The school district revenue/student has grown by 9% over four school years.
The school district's spending/student of $32,810 is less than the state median of $36,024. The school district spending/student has grown by 7% over four school years.
Total Revenue
$291 MM
$87,503 MM
Spending
$255 MM
$90,091 MM
Revenue / Student
$37,368
$34,989
Spending / Student
$32,810
$36,024
Best Central Islip Union Free School District Public Schools (2026-27)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Central Islip Senior High School
(Math: 50% | Reading: 75-79%)
Rank:
Rank:
8/
Top 30%10
85 Wheeler Rd
Central Islip, NY 11722
(631) 348-5079
Central Islip, NY 11722
(631) 348-5079
Gr: 9-12 | 2,615 students Student-teacher ratio: 17:1 Minority enrollment: 98%
Rank: #22.
Francis J O'neill School
(Math: 44% | Reading: 41%)
Rank:
Rank:
4/
Bottom 50%10
44 E Cherry St
Central Islip, NY 11722
(631) 348-5060
Central Islip, NY 11722
(631) 348-5060
Gr: K-6 | 600 students Student-teacher ratio: 14:1 Minority enrollment: 98%
Rank: #33.
Andrew T Morrow School
(Math: 37% | Reading: 32%)
Rank:
Rank:
3/
Bottom 50%10
299 Sycamore Ave
Islandia, NY 11749
(631) 348-5037
Islandia, NY 11749
(631) 348-5037
Gr: K-6 | 821 students Student-teacher ratio: 14:1 Minority enrollment: 98%
Rank: #44.
Marguerite L Mulvey School
(Math: 35% | Reading: 35%)
Rank:
Rank:
3/
Bottom 50%10
44 E Cherry St
Central Islip, NY 11722
(631) 348-5059
Central Islip, NY 11722
(631) 348-5059
Gr: K-6 | 567 students Student-teacher ratio: 13:1 Minority enrollment: 99%
Rank: #55.
Anthony Alfano Elementary School
(Math: 40% | Reading: 27%)
Rank:
Rank:
3/
Bottom 50%10
50 Wheeler Rd
Central Islip, NY 11722
(631) 348-5139
Central Islip, NY 11722
(631) 348-5139
Gr: PK-6 | 491 students Student-teacher ratio: 12:1 Minority enrollment: 98%
Rank: #66.
Ralph Reed School
(Math: 26% | Reading: 29%)
Rank:
Rank:
2/
Bottom 50%10
200 Half Mile Rd
Central Islip, NY 11722
(631) 348-5066
Central Islip, NY 11722
(631) 348-5066
Gr: 7-8 | 1,192 students Student-teacher ratio: 14:1 Minority enrollment: 97%
Rank: #77.
Charles A Mulligan Elementary School
(Math: 33% | Reading: 21%)
Rank:
Rank:
2/
Bottom 50%10
1 Broadway
Central Islip, NY 11722
(631) 348-5041
Central Islip, NY 11722
(631) 348-5041
Gr: K-6 | 997 students Student-teacher ratio: 15:1 Minority enrollment: 98%
Rank: #88.
Cordello Avenue Elementary School
(Math: 27% | Reading: 23%)
Rank:
Rank:
1/
Bottom 50%10
51 Cordello Ave
Central Islip, NY 11722
(631) 348-4189
Central Islip, NY 11722
(631) 348-4189
Gr: K-6 | 490 students Student-teacher ratio: 11:1 Minority enrollment: 99%
Frequently Asked Questions
How many schools belong to Central Islip Union Free School District?
Central Islip Union Free School District manages 8 public schools serving 7,773 students.
What is the rank of Central Islip Union Free School District?
Central Islip Union Free School District is ranked #906 out of 1,007 school districts in New York (bottom 50%) based off of combined math and reading proficiency testing data for the 2022-2023 school year. This district ranks in the top 20% of New York school districts for: Largest student body (number of students) (Top 1%)
What is the racial composition of students in Central Islip Union Free School District?
82% of Central Islip Union Free School District students are Hispanic, 13% of students are Black, 2% of students are White, 2% of students are Two or more races, and 1% of students are Asian.
What is the student/teacher ratio of Central Islip Union Free School District?
Central Islip Union Free School District has a student/teacher ratio of 14:1, which is higher than the New York state average of 11:1.
What is Central Islip Union Free School District's spending/student ratio?
The school district's spending/student of $32,810 is less than the state median of $36,024. The school district spending/student has grown by 7% over four school years.
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