Property taxes in the Town of Islip, NY

The Town of Islip in Suffolk County contains 92,911 parcels across 12 school districts. The median single-family home value is $579,341.

Median home value
$579k
P10 $443k · P90 $856k
Single-family parcels
83,528
of 92,911 total
School districts
12
serving this town
Suffolk County median bill
$11,358/yr
for context

School districts in the Town of Islip

Median bills by district — the school portion typically drives 60-75% of the total bill.

ZIP codes in the Town of Islip

Browse property tax data for each ZIP within Islip.

Frequently asked questions

What is the average property tax in Town of Islip?

Property tax bills in the Town of Islip vary by school district — the school portion is typically 60-75% of the total bill. Use the property tax calculator to get an estimate for any specific address.

When is the tax grievance deadline in Town of Islip?

Suffolk County towns (including Islip) accept grievance applications by the third Tuesday of May each year via the town's Board of Assessment Review.

How does Town of Islip compare to other Suffolk County towns?

Compare median bills across all Suffolk County towns and districts on the Long Island tax map, or see the Suffolk County overview.

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Methodology & sources

Estimates only — not professional advice. Verify with the Suffolk County Receiver of Taxes before making financial decisions.