Property taxes in Mount Sinai, NY 11766
ZIP 11766 (Mount Sinai) has 4,461 parcels in Suffolk County, including 3,628 single-family homes. The median home is valued at $687,500.
- Median home value
- $688k
- Most homes $464k to $1.01M
- Single-family homes
- 3,628
- of 4,461 parcels
- School districts
- 5
- serving this ZIP code
School districts in ZIP 11766
Homes in Mount Sinai (11766) are zoned into these school districts. The school portion is typically 60–75% of the bill, so the district on your tax bill matters more than the ZIP on your mail.
- Mount Sinai4,177 parcels in this ZIP $13,9004,177 parcels
- Longwood41 parcels in this ZIP $9,97241 parcels
- Brookhaven-Comsewogue34 parcels in this ZIP $11,35834 parcels
- Rocky Point21 parcels in this ZIP $10,31321 parcels
- Miller Place20 parcels in this ZIP $12,79620 parcels
Towns in ZIP 11766
- Brookhaven 4,377 parcels
- Islip 31 parcels
- Southold 15 parcels
- Riverhead 10 parcels
- Babylon 8 parcels
Frequently asked questions
What is the average property tax in Mount Sinai, NY 11766?
It depends on the school district. Within one ZIP code, bills can differ two- or threefold between districts. Use the property tax calculator for an estimate on any address.
What county is ZIP 11766 in?
ZIP 11766 is in Suffolk County.
How do I lower property taxes in this ZIP code?
Apply for every exemption you qualify for (STAR, Enhanced STAR, senior, veterans) and consider a tax grievance if comparable homes nearby are assessed lower than yours.
Tracking property tax in Mount Sinai (11766)?
One short email when rates, exemption deadlines or grievance windows change.
Methodology and sources
- Parcels and assessment values: NY State Office of Real Property Tax Services (ORPTS) combined parcel file, roll year 2025.
- ZIP to hamlet names: USPS ZIP code areas and Long Island hamlet names.
Estimates only, not professional advice.