Parcel Intel Research
West Islip Union Free School District — Property Taxes & Arrears
School-tax arrears, distressed parcels, and property-tax context for the West Islip Union Free School District. The district serves Suffolk County residents primarily in Islip.
The West Islip Union Free School District serves Suffolk County residents primarily in the town of Islip. This page covers two slices of the district's property-tax picture: the estimated arrears carried by parcels in the district's ZIPs, and the live list of currently distressed parcels in those ZIPs that may be relevant to investors, journalists, or homeowners researching the district.
Property inside the district boundary
The West Islip Union Free School District contains 9,168 parcels across the town of Islip. 0.3% of them are vacant land (26 parcels), and the median lot is 0.258 acres.
- Parcels
- 9,168
- Vacant land
- 26
- Median lot
- 0.258 ac
- Total land
- 3,113 ac
Largest communities: West Islip, Bay Shore.
Counts are measured inside the district’s GIS boundary, not estimated from ZIP codes — ZIP and school-district lines do not align, and the two methods differ by as much as a factor of two. District membership is derived from each parcel’s centroid, so a parcel straddling the boundary may be attributed to one side; this is a research reference, not a determination of school enrollment eligibility. Lot-size figures are computed from the 0% of parcels carrying measured acreage on the current roll.
See every distressed parcel inside the West Islip Union Free School District on the live map
Deal Finder filters our entire Suffolk parcel index to the actual district boundary — point-in-polygon, not a ZIP approximation.
Estimated school-tax arrears
Parcel Intel currently estimates $7,716K in unpaid school-tax balances across 249 parcels in the West Islip Union Free School District. Estimates are derived from parcel-level tax records joined to the district's primary ZIPs.
For the comparative ranking of every major Suffolk school district by tax pressure, see our Long Island School District Tax Pressure Index.
Distressed parcels currently in the district
Sample of currently distressed parcels — tax arrears, lis pendens filings, code-enforcement orders — in West Islip Union Free School District ZIPs. Sign up free (no card) to see full owner records, exact arrears amounts, and mailing addresses.
See all 249 distressed parcels in West Islip Union Free School District
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Built on Suffolk County, NY public records
ZIP codes served
Click any ZIP to open Deal Finder with both the district and that specific ZIP pre-filtered — useful for narrowing inside the district to a corridor you already know.
Coverage and scope
Each district page aggregates parcels whose primary ZIP maps to that district under our ZIP-to-district lookup. ZIPs spanning multiple districts are attributed to their primary district. School-tax arrears estimates are derived from each parcel's own tax history where available; districts outside our current coverage are excluded rather than estimated. Updated annually.
For underlying town-level totals see the Suffolk Tax Arrears Report. For definitions of arrears, lis pendens, and related terms, see our glossary.
For journalists and researchers
This report is part of Parcel Intel's research on Suffolk County real estate. Cite as: Parcel Intel, "West Islip Union Free School District — Property Taxes & Arrears" — www.parcelintel.io/school-district/west-islip. Last updated 2026-09-12. Questions, corrections, or data requests: support@parcelintel.io.