Excellent
#328 of 4,742 schools in NY
Top 7% in state
Islip High School
High School · ISLIP UNION FREE SCHOOL DISTRICT
2508 UNION BLVD, Islip, NY 11751
Enrollment
891
Student-Teacher
9.1:1
Score
8.5
Grades
9th – 12th
Enrollment
891
Student-Teacher
9.1:1
Score
8.5
Grades
9th – 12th
Data vintage
2022-23
Data vintage2022-23
How this school compares
New York schools
#328 of 4,742
In Islip
#1 of 5
public schools
In district
#1 of 5
ISLIP UNION FREE SCHOOL DISTRICT
Academic performance
9.5 / 10
Excellent
Shortlisting around Islip High School?
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Islip High School
High School in Islip · grades 9th – 12th. Start here, then compare fit against nearby and district options.
Islip Middle School
0.2 mi away. Use as a geographic alternative in the same move search.
Commack Road Elementary School
0.9 mi away. Use as a geographic alternative in the same move search.
About Islip High School
Islip High School is a public high school in Islip, NY, part of ISLIP UNION FREE SCHOOL DISTRICT. Islip High School serves approximately 891 students, and covers grades 9th-12th, and has a 9.1:1 student-teacher ratio. Islip High School has a current MySchoolScout rating of 8.5 out of 10 and ranks #328 of 4,742 schools in NY.
Structured state assessment records for Islip High School show 93% math proficiency (multi-year average, 2009-2021) and 96% reading/ELA proficiency (multi-year average, 2009-2021).
- This school 8.5 · Excellent
- NY avg 7.0
What Parents Should Know
At 9.1:1 students to teachers, Islip High School sits well below the national average. Smaller classes like that usually mean more one-on-one time between students and teachers.
Score Breakdown
Full Profile · 4/4 metricsView breakdown
View breakdown
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Islip High School — Students at Islip High School score 90% proficient, which is above what's typical for similar communities (expected: 56%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
38.9%
Students qualifying for federal meal assistance
Test Scores NY EDFACTS (2020-21)
Based on 26 test records from NY state assessments. About our data
Proficiency Trend
→ StableAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 8.0/10.
How Islip High School Compares
See how Islip High School performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Programs & Offerings
Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more
Location
2508 UNION BLVD, Islip, NY 11751
Nearby Alternatives
Families considering Islip High School may also want to explore other high schools in the area. EAST ISLIP HIGH SCHOOL (rated 8.8/10, 2.4 miles away, in nearby Islip Terrace), which scores slightly higher. Additionally, BAY SHORE SENIOR HIGH SCHOOL (rated 8.4/10, 1.8 miles away, in nearby Bay Shore), with a very similar rating. For more schools in Islip, see our Islip schools guide .
Nearby Schools
20 within 2.9 mi| School | Distance | Rating |
|---|---|---|
| ISLIP MIDDLE SCHOOL Islip | 0.2 mi | 5.7 |
| COMMACK ROAD ELEMENTARY SCHOOL Islip | 0.9 mi | 3.6 |
| MAUD S SHERWOOD ELEMENTARY SCHOOL Islip | 0.9 mi | 4.7 |
| WING ELEMENTARY SCHOOL Islip | 0.9 mi | 7.5 |
| BROOK AVENUE ELEMENTARY SCHOOL Bay Shore | 1.3 mi | 6.1 |
| ST MARY SCHOOL East Islip | 1.3 mi | 5.6 |
| LORETTA PARK ELEMENTARY SCHOOL Brentwood | 2.1 mi | 3.8 |
| LAUREL PARK ELEMENTARY SCHOOL Brentwood | 2.1 mi | 4.7 |
| BAY SHORE SENIOR HIGH SCHOOL Bay Shore | 1.8 mi | 8.4 |
| JOHN F KENNEDY ELEMENTARY SCHOOL East Islip | 1.8 mi | 6.1 |
| BAY SHORE MIDDLE SCHOOL Bay Shore | 1.9 mi | 5.9 |
| ST PATRICK SCHOOL Bay Shore | 1.9 mi | 5.2 |
| SOUTHEAST ELEMENTARY SCHOOL Brentwood | 2.4 mi | 4.0 |
| MARY G CLARKSON SCHOOL Bay Shore | 2.1 mi | 6.2 |
| FIFTH AVENUE SCHOOL Bay Shore | 2.1 mi | 6.3 |
| RUTH C KINNEY ELEMENTARY SCHOOL Islip Terrace | 2.5 mi | 5.0 |
| EAST ISLIP MIDDLE SCHOOL Islip Terrace | 2.4 mi | 6.7 |
| EAST ISLIP HIGH SCHOOL Islip Terrace | 2.4 mi | 8.8 |
| OAK PARK ELEMENTARY SCHOOL Bay Shore | 2.7 mi | 5.3 |
| SOUTH MIDDLE SCHOOL Brentwood | 2.9 mi | 4.0 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 11751 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$116,328
Median Home Value
$501,900
Median Rent
$2,238/mo
Population
13,152
College Educated
36%
Homeownership
83.4%
Avg Commute
29.6 min
Poverty Rate
5.6%
Median Age
46.6
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| CLINTON SCHOOL (THE) New York, NY | 8.5 |
| JAMESVILLE-DEWITT HIGH SCHOOL Dewitt, NY | 8.5 |
| NEW HARTFORD SENIOR HIGH SCHOOL New Hartford, NY | 8.5 |
| ROBERT M GRABLE JR MOUNT SINAI HIGH SCHOOL Mount Sinai, NY | 8.5 |
| SLEEPY HOLLOW HIGH SCHOOL Sleepy Hollow, NY | 8.5 |
| WAYNE SENIOR HIGH SCHOOL Ontario Center, NY | 8.5 |
Frequently Asked Questions
Common questions about Islip High School
What grades does Islip High School serve?
Islip High School serves students in grades 9th through 12th.
How many students attend Islip High School?
Islip High School has an enrollment of approximately 891 students.
What is the student-teacher ratio at Islip High School?
The student-teacher ratio at Islip High School is 9.1:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Islip High School rank in NY?
Islip High School ranks #328 of 4,742 schools in NY.
What is Islip High School's MySchoolScout rating?
Islip High School has a current MySchoolScout rating of 8.5 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Islip High School?
Based on loaded state assessment records, Islip High School has 93% math proficiency (multi-year average, 2009-2021) and 96% reading/ELA proficiency (multi-year average, 2009-2021).
Is Islip High School a charter school?
No, Islip High School is not a charter school. It is a traditional public school operated by the local school district.
Is Islip High School a Title I school?
No, Islip High School is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Islip High School?
38.9% of students at Islip High School qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Neighborhood Context
Powered by 
Quick Facts NCES CCD (SY 2022-23)
- Grades
- 9th – 12th
- Enrollment
- 891
- Student-Teacher Ratio
- 9.1:1
- Teachers (FTE)
- 98
- Free/Reduced Lunch
- 38.9%
- Type
- regular
- Setting
- Large Suburb
- County
- Suffolk County
- Chronic Absenteeism (SY 2022-23)
- 21.5%
- Phone
- (631) 650-8301
- 4-Year Graduation
- 97.0%
Resources & Links
District
ISLIP UNION FREE SCHOOL DISTRICT- District Enrollment
- 2,722
- Schools in District
- 5
- Per-Pupil Spending
- $33,390
- District Rank
- #1 of 5
Other Schools in This District
How we rate schools
A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.
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