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SCHOOL COMMUNITY·ISLIP UNION FREE SCHOOL DISTRICT·NCES 361554001324

ISLIP HIGH SCHOOL

2508 UNION BLVD, ISLIP, NY 11751 · (631) 650-8301 · Suffolk County
GRADES 09–12HIGH21-SUBURBTITLE IREGULAR SCHOOL890 STUDENTS
Enrollment
890
High
DISTRICT 530 · STATE 668
Student : Teacher
9.8:1
90 FTE teachers
DISTRICT 10.5:1 · STATE 11.0:1
Free / Reduced Lunch
43%
385 students
DISTRICT 41% · STATE 58%
Community
1
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Grade 9
235
Grade 10
208
Grade 11
228
Grade 12
212
Ungraded
7
Student demographics
White
41447%
DISTRICT 46% · STATE 39%
Hispanic
33337%
DISTRICT 39% · STATE 31%
Black
667%
DISTRICT 6% · STATE 16%
Asian
506%
DISTRICT 5% · STATE 10%
Two+
243%
DISTRICT 4% · STATE 4%
Native American
20%
DISTRICT 0% · STATE 1%
Pacific Islander
10%
DISTRICT 0% · STATE 0%
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
45351%
Female
43749%

Discussions

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Test scores

NYS Assessments 2024-25 . % Proficient (Level 3 + Level 4)
English Language Arts
89.0%
NY avg 58.3% . -2.0pp since 2023
Math
47.0%
NY avg 57.4% . +27.0pp since 2023
Source: NYS Assessments. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
65.7%
composite math + reading, all grades
Predicted
59.1%
based on NY schools with similar FRL share
Beats by
+6.6pp
above demographic expectation
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

7-year change

SY 2017-18 vs SY 2024-25
Enrollment
890
-103 (-10%) vs 2017
Student : Teacher
9.8:1
was 11.5:1
% White
47%
was 62%
% Hispanic
37%
was 25%
% Black
7%
was 6%
% Asian
6%
was 5%
Source: NCES Common Core of Data

About ISLIP HIGH SCHOOL

ISLIP HIGH SCHOOL is a high school of moderately sized scale in ISLIP, New York, one of the schools within ISLIP UNION FREE SCHOOL DISTRICT, teacheing 890 students in grades 9 through 12. By comparison, New York's public schools average about 668 students each, so ISLIP HIGH SCHOOL sits 33% bigger than that benchmark.

Within ISLIP UNION FREE SCHOOL DISTRICT, which oversees 5 schools and 2,652 students, ISLIP HIGH SCHOOL is one campus in the system.

Looking at the student body, ISLIP HIGH SCHOOL lists that 47% of students identify as White, with the remaining enrollment distributed across several groups. Other groups include 37% Hispanic, 7% Black, 6% Asian, 3% multiracial. The wider county runs roughly 66% White, putting the school's mix visibly less White than the area baseline.

On the resource side, Staff filings list 90 full-time-equivalent teachers, which works out to roughly 9.8:1 students per teacher. That figure is tighter than the state norm's 11.0:1 average. About 43% of enrolled students meet the income threshold for free or reduced-price lunch, a commonly cited indicator of low-income enrollment.

With demographic context factored in, ISLIP HIGH SCHOOL sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 59.1%; this one delivers 65.7%.

In the surrounding community, the surrounding county (Suffolk County) shows that the typical household earns roughly $130,686 per year, about 40% of the adult population holds a bachelor's degree or above, and the poverty rate sits near 4%. ISLIP HIGH SCHOOL is one of 343 public schools in Suffolk County (combined enrollment of about 222,439 students).

The closest other public school is ISLIP MIDDLE SCHOOL, roughly 0.2 miles away. Counting just inside five miles, 8 other public schools cluster around ISLIP HIGH SCHOOL. On composite proficiency, ISLIP HIGH SCHOOL comes 2nd of 6 in the immediate cluster, higher than the nearby-schools average of 50.4%.

The campus sits in a residential setting.

Over the past 7-year window. Looking back 7 years, enrollment at ISLIP HIGH SCHOOL has fell 10%, going from 993 students in 2018 to 890 in 2025. White enrollment moved from 62% to 47% across the same window. The student-to-teacher ratio narrowed from 11.5:1 in 2018 to 9.8:1 today.

In the discussion threads here, members of the ISLIP HIGH SCHOOL community share and discuss school events, parent volunteer needs, and clubs. The community welcomes input from current and former families.

Suffolk County at a glance

View full county profile
Population
1,530,146
Census ACS
Median income
$130,686
Household, ACS
Bachelor's+
40%
Adults 25+
Poverty rate
4%
Below federal line
Schools in county
343
222,439 students

Quick facts

School name
ISLIP HIGH SCHOOL
District
ISLIP UNION FREE SCHOOL DISTRICT
Address
2508 UNION BLVD, ISLIP, NY 11751
Phone
(631) 650-8301
County
Suffolk County
Level
High
Grade range
09–12
Total enrollment
890
Teachers (FTE)
90
Student–teacher ratio
9.8:1
Free/Reduced lunch
385 (43%)
Locale
21-Suburb: Large
NCES ID
361554001324
Charter school
No
Virtual school
No

Related schools

Other schools in ISLIP UNION FREE SCHOOL DISTRICT
Other schools in ISLIP
Nearby schools

Frequently asked questions

About ISLIP HIGH SCHOOL
What is the total enrollment at ISLIP HIGH SCHOOL?
ISLIP HIGH SCHOOL enrolls approximately 890 students in grades 09-12.
What grades does ISLIP HIGH SCHOOL serve?
ISLIP HIGH SCHOOL serves grades 09-12.
What is the student-teacher ratio at ISLIP HIGH SCHOOL?
The student-to-teacher ratio at ISLIP HIGH SCHOOL is approximately 9.8:1 (90 FTE teachers).
What is the racial breakdown of students at ISLIP HIGH SCHOOL?
At ISLIP HIGH SCHOOL, the student body is approximately 47% White, 37% Hispanic, 7% Black, 6% Asian, 3% Two or more.
Who oversees ISLIP HIGH SCHOOL?
ISLIP HIGH SCHOOL is overseen by ISLIP UNION FREE SCHOOL DISTRICT in Suffolk County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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