Property taxes in Smithtown, NY 11787

ZIP 11787 (Smithtown) contains 12,099 parcels in Suffolk County, including 11,273 single-family homes. The median home value is $690,000.

Median home value

$690k

P10 $497k · P90 $961k

Single-family parcels

11,273

of 12,099 total

School districts in ZIP

serving residents here

School districts in ZIP 11787

Residents in Smithtown (11787) are zoned across these school districts. The school portion of property tax is typically 60-75% of the total bill.

Smithtown $14,000/yr · 8,540 parcels
Hauppauge $12,251/yr · 2,212 parcels
Commack $14,683/yr · 344 parcels
Kings Park $12,564/yr · 252 parcels
Brookhaven-Comsewogue $11,358/yr · 84 parcels

Towns covered by ZIP 11787

Smithtown 11,329 parcels
Brookhaven 319 parcels
Islip 178 parcels
Babylon 78 parcels
Huntington 45 parcels

Frequently asked questions

What is the average property tax in Smithtown, NY 11787?

Property tax in ZIP 11787 varies by school district. The biggest factor is which school district your home falls into — within a ZIP, bills can vary 2-3x. Use the property tax calculator to get an exact estimate for any address.

What county is ZIP 11787 in?

ZIP 11787 falls within Suffolk County.

How do I lower property taxes in this ZIP?

File for exemptions (STAR, Enhanced STAR, Senior, Veterans) and consider a tax grievance if comparable homes nearby are assessed lower than yours.

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Methodology & sources

Parcels and assessment values: NY State Office of Real Property Services (ORPS) combined parcel file, roll year 2025.
ZIP-hamlet mapping: USPS ZIP code area + LI hamlet locality database.

Estimates only — not professional advice.