Mastic Beach, NY Public Records
Mastic Beach is an unincorporated community (a census-designated place) in Suffolk County, New York, with an estimated population of 16,735 (U.S. Census Bureau, 2020–2024 American Community Survey) and 4.9 square miles of land.
🏢 Local Government for Mastic Beach
Mastic Beach is not an incorporated city or town, so it has no city hall, town clerk or local government of its own. Local government services and records for Mastic Beach come from Suffolk County and from the township or town government whose territory includes it. Birth and death certificates, marriage records, deeds and court files come from the county and state offices below.
Population figure: U.S. Census Bureau, 2020–2024 American Community Survey 5-year estimate for the Mastic Beach census-designated place (a statistical area, not a government).
↑ Back to record types🏛️ County Courthouse & Records Office for Mastic Beach
Mastic Beach is in Suffolk County. In New York, deeds, mortgages and other land records are recorded by the County Clerk (in New York City, the Office of the City Register). Divorce cases in New York are heard by the New York State Supreme Court in each county. Wills and estates in New York are handled by the Surrogate's Court in each county.
📍 Suffolk County at a Glance
| County | Suffolk County |
| County population (2024 est.) | 1,535,909 Source: www2.census.gov ↗ |
🏛️ Suffolk County Government Office
| Government | County Of Suffolk |
| Mailing address | PO Box 6100, Hauppauge, NY 11788 |
| Official website | www.suffolkcountyny.gov |
| Source | U.S. Census Bureau, 2022 Census of Governments: Government Units listing ↗ |
We have not yet added the courthouse and records-office directory for Suffolk County. The county government above can direct you to the right office, and the county page links to the official state court system.
See the full Suffolk County records page →
↑ Back to record types📋 Where to Get Records for Mastic Beach
Where to get the most-requested public records for people and property in Mastic Beach, NY:
📋 Mastic Beach Records Guide
| Birth & death certificates | New York State Department of Health – Vital RecordsIn New York, city, town and village clerks commonly serve as the local registrar of vital statistics (birth and death records for events in that municipality), and town and city clerks issue marriage licenses, so ask the clerk's office first. |
| Deeds & property records | In New York, deeds, mortgages and other land records are recorded by the County Clerk (in New York City, the Office of the City Register). |
| Court cases & divorce | Suffolk County courthouse. Divorce cases in New York are heard by the New York State Supreme Court in each county. |
| Wills & estates | Wills and estates in New York are handled by the Surrogate's Court in each county. |
| State court system | New York State Unified Court System |
| Sex offender registry | New York State Sex Offender Registry (DCJS) |