Property taxes in Syosset, NY 11791

ZIP 11791 (Syosset) contains 8,927 parcels in Nassau County, including 8,268 single-family homes. The median home value is $687,000.

Median home value

$687k

P10 $519k · P90 $1386k

Single-family parcels

8,268

of 8,927 total

School districts in ZIP

serving residents here

School districts in ZIP 11791

Residents in Syosset (11791) are zoned across these school districts. The school portion of property tax is typically 60-75% of the total bill.

Syosset $16,283/yr · 7,258 parcels
Cold Spring Harbor $30,783/yr · 567 parcels
Jericho $16,828/yr · 149 parcels
Oyster Bay-East Norwich $11,108/yr · 134 parcels
Hicksville $8,026/yr · 81 parcels

Towns covered by ZIP 11791

Oyster Bay 8,278 parcels
Hempstead 146 parcels
North Hempstead 104 parcels
Islip 83 parcels
Huntington 79 parcels

Frequently asked questions

What is the average property tax in Syosset, NY 11791?

Property tax in ZIP 11791 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 11791 in?

ZIP 11791 falls within Nassau 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.