Nassau County Genealogy Search (New York)

Perform a free Nassau County, NY public genealogy records search, including genealogy ancestry histories, family search histories, and family trees.


The Nassau County Genealogy Search (New York) links below open in a new window and take you to third party websites that provide access to Nassau County public records. Editors frequently monitor and verify these resources on a routine basis.

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Nassau County Birth Certificates https://www.health.ny.gov/vital_records/birth.htm View Nassau County, New York birth certificate information, including required identification and fees for certified copy requests.

Nassau County Death Certificates & Records https://www.health.ny.gov/vital_records/death.htm Find Nassau County, New York death records, and learn about the fees and process for requesting copies of certified death certificates.

Nassau County Library System Employee Directory https://www.nassaulibrary.org/members/ View Nassau County Library System member list by, including photographs, by name and website link.

Nassau County Marriage Certificates & Records https://www.nassaucountyny.gov/479/Vital-Records View Nassau County, New York marriage certificate and license requirements, including fees for certified marriage record copy requests.

Find Nassau County Genealogy Records

Nassau County Genealogy Records are kept by a number of different government agencies and departments in Nassau County, New York. The U.S. Census Bureau maintains Genealogy Records in the form of census data. Other municipal and New York State offices also maintain records that are useful for tracing lineage. Nassau County Vital Records Offices hold birth, marriage, and death records that date back hundreds of years.

Learn about Genealogy Records, including:
  • Where to get free Genealogy Records online
  • How to perform Nassau County genealogy research
  • Which government offices provide access to vital records
  • What Nassau County genealogy records are public records
  • What are the best sources of Genealogy Records