Nassau & Suffolk Counties, New York Nassau grievance deadline March 31, 2027Nassau grievance deadline Mar 31
Long Island Property Tax
Town · Suffolk County

Property taxes in the Town of Smithtown, NY

The Town of Smithtown in Suffolk County has 38,782 parcels across 6 school districts. The median single-family home is valued at $678,750.

Median home value
$679k
Most homes $460k to $1.01M
Single-family homes
36,972
of 38,782 parcels
School districts
6
serving this town
Suffolk median bill
$11,298/yr
county-wide, for context
School districts

School districts in the Town of Smithtown

Median bills by district. The school portion is typically 60–75% of the whole bill, so two neighbors in the same town can pay very different amounts.

  1. Smithtown18,772 parcels here $14,00018,772 parcels
  2. Kings Park7,243 parcels here $12,5647,243 parcels
  3. Commack7,074 parcels here $14,6837,074 parcels
  4. Hauppauge4,540 parcels here $12,2514,540 parcels
  5. Sachem1,075 parcels here $9,9681,075 parcels
  6. Three Village78 parcels here $15,32278 parcels

Suffolk County median, $11,298

ZIP codes

ZIP codes in the Town of Smithtown

Property tax figures for each ZIP code in Smithtown.

Questions

Frequently asked questions

What is the average property tax in the Town of Smithtown?

Bills in the Town of Smithtown vary by school district; the school portion is typically 60–75% of the bill. Use the property tax calculator for an estimate on any address.

When is the tax grievance deadline in the Town of Smithtown?

Suffolk County towns, including Smithtown, accept grievance applications through Grievance Day, the third Tuesday in May, at the town’s Board of Assessment Review. See the Smithtown grievance guide.

How does the Town of Smithtown compare with other Suffolk County towns?

Compare median bills across every Suffolk County town and district on the Long Island tax map, or see the Suffolk County overview.

Guides

More for Smithtown homeowners

Grieving in SmithtownDeadlines, forms and how the process works here. Smithtown tax due datesWhen each half of the bill is due, and the penalties. Look up an assessmentWhere to find the official assessment for a Smithtown property. Suffolk CountyMedian bills and districts county-wide.
Method

Methodology and sources

  • Parcels and assessment values: NY State Office of Real Property Tax Services (ORPTS) combined parcel file, roll year 2025. data.ny.gov
  • Town SWIS codes: NY State ORPTS standard codes that map municipalities to assessment rolls.

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