How to Search Suffolk County Records (Start Here)
Suffolk County covers the eastern two-thirds of Long Island. The County Clerk's online records system is the main entry point — but property assessments are handled at the town level, not county.
- Land records, deeds, and liens: Suffolk County Clerk's Online Records at suffolkcountyny.gov/clerk. Search by address, owner name, property tax map number, or document type.
- Court records: The County Clerk's Legal Division handles Supreme Court filings. For pending criminal cases, use WebCrims for the 10th Judicial District.
- Property assessments and tax: There is no county-level assessor. Each town in Suffolk County — Babylon, Brookhaven, Huntington, Islip, Smithtown, Riverhead, Southampton, East Hampton, Shelter Island, Southold — maintains its own assessment roll.
- Property tax lookup: suffolk.munisselfservice.com for county-level tax information.
Each source below is verified and links to an official portal.
Criminal & Court Records
Court Cases | Pending Civil
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Current Suffolk County Supreme Court civil case records and schedules.
Civil Court Decisions
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Search the NY State Unified Court System for online court decisions in Suffolk County. Click on Document Search to search by index/docket number or by county.
Criminal Court Records & Calendars | Webcrims
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Search the WebCrims Case Information System for current criminal court filings & calendars in Suffolk County. Provided by the NY State Unified Court System.
Supreme Court Records
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Use this service to search for Suffolk County Supreme Court records. Includes commercial, Department of Health, foreclosure, guardianship, mass tort, matrimonial, tort, and workers comp cases.
Property & Tax Records
Recorded Documents
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Suffolk County Clerk land records since 1987, UCCs since 1980.
Legislative Districts
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Use this Geographic Information System from Suffolk County to assist you in identifying your local Legislator and links to their websites.
Property | County Tax Records
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Suffolk County Real Property Tax Service Agency AREIS property search (Advanced Real Estate Information System). Requires subscription.
Property | Town of Brookhaven
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Town of Brookhaven Assessor's Office assessment Roll.
Property | Town of East Hampton
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Town of East Hampton Assessor's Office tentative and final Assessment Rolls.
Property | Town of Huntington Assessments
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Town of Huntington tax assessment roll search by tax map number.
Property | Town of Huntington Tax Records
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Town of Huntington property tax record search by address or tax map number.
Property | Town of Islip
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Official Free
Searchable index of Town of Islip real property assessment rolls.
Property | Town of Riverhead
Visit →Property & Tax Records
Official Free
In the left-hand column you'll find links to download the Town of Riverhead assessment and tax rolls.
Property | Town of Shelter Island
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Assessor's Office of the Town of Shelter Island assessment roll.
Property | Town of Smithtown
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Official Free
Tentative and Final Assessment Rolls for the Town of Smithtown.
Property | Town of Smithtown GIS
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Official Free
Geographic Information System (GIS) property tax and assessment record search for the Town of Smithtown.
Property | Town of Southampton
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Town of Southampton tentative and final Assessment Rolls.
Property | Town of Southampton Sales
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GIS map search for Town of Southampton property sales records.
Property | Town of Southold
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In the right-hand column you'll find a link to a pdf file of the Town of Southold assessment roll.
Business, Voter & Other
Suffolk County
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Suffolk County, New York official government site. Find county departments, contacts, services, business resources, community bulletins, bids, proposals, documents, forms, and more.
Naturalizations (county)
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Use this Suffolk County government service to search by name for naturalization records.