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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
B
allk12 Grade
Scored higher than 60% of New York public high schools
  • BTest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • B-Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.

Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded New York public high schools

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, 2024-25

GradeStudentsShare
Grade 923526%
Grade 1020823%
Grade 1122826%
Grade 1221224%
Ungraded71%
Student demographics
63%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 63% · STATE 72% · US 70%
White
41447%
DISTRICT 46% · STATE 39% · US 43%
Hispanic
33337%
DISTRICT 39% · STATE 31% · US 30%
Black
667%
DISTRICT 6% · STATE 16% · US 15%
Asian
506%
DISTRICT 5% · STATE 10% · US 6%
Two+
243%
DISTRICT 4% · STATE 4% · US 5%
Native American
20%
DISTRICT 0% · STATE 1% · US 1%
Pacific Islander
10%
DISTRICT 0% · STATE 0% · US 0%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). 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%

School pathway

Feeds from
ISLIP MIDDLE SCHOOL06–08
Based on grade levels within ISLIP UNION FREE SCHOOL DISTRICT. Attendance zones can vary; confirm enrollment with the district.

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

What this means: On the NYS Assessments, New York's statewide test, about 89 of every 100 students at this school read and write at grade level and about 47 of 100 do math at grade level. Across all New York schools, those numbers are about 58 and 57. Reading and writing scores are down about 2 points since 2023, while math scores are up about 27 points.

NYS Assessments results by year

School yearEnglish Language ArtsMath
2024-2589.0%47.0%
2023-2491.0%20.0%
% Proficient (Level 3 + Level 4), all students and all tested grades.
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

What this means: About 66% of students here test proficient in math and reading, compared with the roughly 59% typical for New York schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among New York's top nor bottom 10%.

BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

Schools most like ISLIP HIGH SCHOOL

ISLIP HIGH SCHOOL's state test result (65.7% proficient) is higher than 1 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
ISLIP HIGH SCHOOL this school89043.3%65.7%
BEACON HIGH SCHOOL
BEACON
83145.0%64.8%
WALTER PANAS HIGH SCHOOL
CORTLANDT MANOR
84535.6%81.8%
WEST END SECONDARY SCHOOL
NEW YORK
72238.5%77.7%
FOX LANE HIGH SCHOOL
BEDFORD
1,15536.5%81.5%
HENDRICK HUDSON HIGH SCHOOL
MONTROSE
72935.0%67.0%
Matched among New York high schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.

Where ISLIP HIGH SCHOOL ranks

Among high schools
MeasureThis schoolIn New YorkIn Suffolk County
State test proficiency
ranked highest first
65.7%#420 of 1,135#40 of 57
Math proficiency
ranked highest first
47.0%#639 of 1,109
▲ 361
#42 of 57
▲ 14
Reading proficiency
ranked highest first
89.0%#214 of 1,135
▲ 34
#24 of 56
▲ 3
Enrollment
ranked largest first
890#280 of 1,216#39 of 59
Students per teacher
ranked fewest first
9.8:1#279 of 1,058#14 of 57
Diversity index
ranked most diverse first
63.4%#210 of 1,070#12 of 57
Free and reduced lunch
ranked highest share first
43.3%#797 of 1,167#21 of 57
Enrollment change since 2017-18
ranked steepest decline first
-10.4%#418 of 743#26 of 45
Ranked against other public high schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.

4-year change

SY 2020-21 vs SY 2024-25
Enrollment
890
-53 (-6%) vs 2020
+3% since 1990-91, when it was 864
Student : Teacher
9.8:1
was 10.4:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2589090.39.8:143% (385)
2023-2489198.59.1:139% (347)
2022-2389292.59.7:133% (293)
2020-219439110.4:130% (282)
2017-1899386.211.5:126% (254)
2015-169608611.2:127% (260)
2010-111,1508912.9:121% (246)
2000-018657012.4:19% (75)
1990-918646313.7:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for ISLIP HIGH SCHOOL.

About ISLIP HIGH SCHOOL

ISLIP HIGH SCHOOL is a mid-sized high school based in ISLIP, New York. Total enrollment is 890 students, and the grades served are 9 through 12. High schools in New York have about 668 students on average; enrollment here is 33% higher.

ISLIP UNION FREE SCHOOL DISTRICT oversees ISLIP HIGH SCHOOL and 4 other schools, with 2,652 students in total.

White students make up 47% of enrollment at ISLIP HIGH SCHOOL, the largest share of any group. Next come 37% Hispanic, 7% Black, 6% Asian, and 3% multiracial. That compares with about 66% White among all Suffolk County residents. Its diversity index, the chance that two randomly chosen students belong to different racial or ethnic groups, is 63%.

With 90.3 full-time-equivalent teachers, the student-to-teacher ratio is about 9.8:1. High schools in New York average 11.0:1, 1.2 more students per teacher than here. Roughly 43% of students come from households that qualify for free or reduced-price lunch.

Among New York public high schools, ISLIP HIGH SCHOOL outscored 60%, which works out to a B on the allk12 Grade.

After adjusting for student poverty, ISLIP HIGH SCHOOL lands between the top and bottom 10% of New York schools. Its average proficiency rate across its state test results is 65.7%; the prediction is 59.1%.

American Community Survey estimates for Suffolk County show that median household income comes to about $130,686, a bachelor's degree or higher is held by about 40% of adults, and the poverty rate is about 4%. The county's public schools total 343, with about 222,439 students.

Of the public schools around it, ISLIP HIGH SCHOOL is closest to ISLIP MIDDLE SCHOOL, about 0.2 miles away. There are at least 8 other public schools within five miles. Nearby schools average 50.4% on proficiency, and ISLIP HIGH SCHOOL is above that at 65.7%.

In the federal locale system, ISLIP HIGH SCHOOL is coded Suburb: Large, for schools in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.

The school's student count decreased 6% between the 2020-21 and 2024-25 school years.

The ISLIP HIGH SCHOOL discussion page is a place for open houses, carpools, and field trips. You can also rate the school on this page.

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 and 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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