Location guide · Nassau County, NY
Find a property owner in Nassau County, New York
Nassau County takes in Mineola and the surrounding area. In New York, deeds are recorded by the county clerk (the City Register in New York City), and property is assessed by the city or town assessor. Those offices give you the owner of record and mailing address one parcel at a time; for a whole list, an owner-data tool returns owners, phones (DNC flagged) and emails in one pass.
What's on a Nassau County property record
- The recorded owner name (person or LLC)
- The mailing address (often different from the property location for absentee owners)
- Assessed value and tax history
- Property characteristics (lot size, year built where applicable, square footage)
- A link to the recorded deed in most counties
Working Nassau County records
For a farm or expired list, pull the parcel numbers first. Parcel IDs stay stable when an address is written differently, so they make cleaner matches than street addresses.
Common questions
How do I find the owner of a property in Nassau County?
The Nassau County property appraiser or assessor website publishes the recorded owner name and mailing address for every property in the county at no charge. For a list of addresses, an owner-data tool resolves each one directly to the verified owner with phones (DNC flagged) and emails.
Where do I find Nassau County property records?
Assessment and owner-of-record data come from the city or town assessor; recorded deeds, mortgages and liens are with the county clerk (the City Register in New York City). Most Nassau County offices offer an online search by address or parcel number.
Is it legal to look up property owners in Nassau County?
Public records in New York are open to anyone, so the lookup itself is fine. Before you call, remove Do Not Call numbers and make sure texts comply with the TCPA. Some states add their own telemarketing rules on top.