School District · New York
Islip Union Free School District
📍 Islip, NY · Suffolk County · NCES LEAID 3615540
Kindergarten – 12th
Grade Span
District Contact & InformationSource: NCES CCD 2024–25
📚
Grades Served
Kindergarten – 12th
📍
District Mailing Address
215 MAIN ST, ISLIP, NY 11751
🌐
NCES District ID (LEAID)
3615540
🏛
District Type
Public School District
Zip Codes Served by Islip Union Free School District1 zip code
Frequently Asked Questions
What zip codes are in Islip Union Free School District?▼
Islip Union Free School District serves 1 zip code: 11751. Zip codes and district boundaries do not line up exactly, so confirm your exact address with the district office before you rely on an assignment.
How is Islip Union Free School District rated?▼
Islip Union Free School District has an overall rating of 4 out of 10 (Below Average), based on the share of students proficient in reading and math on state assessments (NCES EDFacts). That places it in the 31st percentile among New York school districts. Ratings are percentile-ranked within New York only and are not comparable across states.
How many students attend Islip Union Free School District?▼
The NCES Common Core of Data directory reports enrollment of 2,691 students across 5 schools for Islip Union Free School District.
What grades does Islip Union Free School District serve?▼
Islip Union Free School District is listed in the NCES directory as serving grades Kindergarten – 12th.
How do I contact Islip Union Free School District?▼
You can reach Islip Union Free School District by phone at (631)650-8210 or by mail at 215 MAIN ST, ISLIP, NY 11751. Contact details come from the NCES district directory and are the best way to confirm which school your address is assigned to.
About Islip Union Free School District
Islip Union Free School District is a public school district serving 1 zip code in New York, primarily in Suffolk County. It carries an overall rating of 4/10 (Below Average), the 31st percentile among New York districts. That rating reflects the share of students proficient in reading and math on state assessments (NCES EDFacts, 2021–22 for most districts with a 2017–18 fallback for the rest) and is ranked only against other New York districts — scores are not comparable between states. Directory details on this page come from the NCES Common Core of Data, 2024–25.
District boundaries are address-specific and do not follow zip code lines exactly — a single zip code can
be split between two or more districts. Use the zip codes listed above as a starting point, then confirm your
assignment with the district office at (631)650-8210 before making a housing decision.