Islip Union Free School District, New York
Islip Union Free School District is a unified school district in Suffolk County, New York, for grades K–12. About 18,758 people live in it (2020–2024 estimate). It covers 5.16 sq mi (13.4 km²) of land.
- Population, 2020–2024 estimate
- 18,758 ± 1,153
- Grades
- K–12
- Type
- Unified school district
- County
- Suffolk County
- Land area
- 5.16 sq mi (13.4 km²)
- Median household income
- $120,625 ± $14,811
- Median home value
- $548,600 ± $28,201
- Water area
- 5.58 sq mi (14.4 km²)
- State
- New York
- Census code (GEOID)
- 3615540
- Coordinates (central point)
- 40.710821, -73.222175
These coordinates mark a central point for the district, not a school or an address. Population, income and home value: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 20, 2026.
Towns, townships and communities in Islip Union Free School District, largest first
- Islip (CDP)17,362 people
A town, township, city or borough is listed when at least half its land is in the district; a community, when its central point is. Near a district line, an address can belong to the district next door.
Bordering unified school districts, nearest first
- Bay Shore Union Free School District1.7 mi west
- East Islip Union Free School District3.6 mi east
- Brentwood Union Free School District4.8 mi northwest
- Fire Island Union Free School District5.4 mi south
- Central Islip Union Free School District5.5 mi north
These share a boundary with Islip Union Free School District. Distances are straight lines between central points.
Before using this answer for enrollment
A district boundary doesn’t decide which school a student attends; the district’s attendance zones and rules do. Confirm the full address and grade with Islip Union Free School District before you rely on it.
See its schools and enrollment on NCES ↗
Find the school district where you are now or find your town or township.