Suffolk County, New York Genealogy Guide
|Other NY Resources|
| NY Birth, Death, Marriage, |
Divorce & Death Records
NY Ancestor Records
NY Military Databases
NY Data Collections
NY Historical Newspapers
Social Security Death Index
Create a Free Family Tree
Suffolk County is bordered by Nassau County (west).
Suffolk County Cities and Towns include Riverhead, Babylon, Brookhaven, East Hampton, Huntington, Islip, Riverhead, Shelter Island, Smithtown, Southampton, Southold. Villages include Amityville, Asharoken, Babylon, Belle Terre, Bellport, Brightwaters, Dering Harbor, East Hampton, Greenport, Head of the Harbor, Huntington Bay, Islandia, Lake Grove, Lindenhurst, Lloyd Harbor, Nissequogue, North Haven, Northport, Ocean Beach, Old Field, Patchogue, Poquott, Port Jefferson, Quogue, Sagaponack, Sag Harbor, Saltaire, Shoreham, Southampton, Village of the Branch, Westhampton, West Hampton Dunes.
Suffolk County, New York Courthouse Records
Suffolk County, NY Courthouse
The Suffolk County Courthouse is located in Riverhead, New York. Also contact local Town Clerks. They are responsible for vast amounts of local information from deeds, property transfers, and genealogical materials. Research on place and road names, the history of property transfers and much more are available through your Town Clerk. They are a tremendous resources. Learn More About State of New York Court, Tax, Land and Probate Records.
Please contact the each clerk's department to confirm mailing address, hours, fees and other information before visiting or requesting information because contact information sometimes changes. The Clerk's Office DOES NOT DO RESEARCH. The documents are available to interested parties, barring confidential issues. Most staff will assist people in finding the materials, but it is up to the individual to do the research.
The following dates indicates what vital, land, probate, and court records are in Suffolk county. The date listed for each category of record is usually the earliest registration filed. The earliest date does not indicate that there are numerous records for that year and does not mean that all such events were actually registered.
- Suffolk County Clerk has Land Records from 1683, Court Records from 1683 and Naturalization Records. State court naturalization records remain in custody of the county clerks. Older court naturalization records have been transferred to the National Archives--Northeast Region. The County Clerk is the keeper of most civil and criminal trial court records for Supreme Court and County Court, naturalizations, marriages (1908–35), censuses (Some county clerks' offices hold duplicate copies of some of the State censuses taken periodically between 1825 and 1925 and copies of the federal census), as well as deeds and mortgages.
- Suffolk County Surrogate Court Clerk has Probate Records from 1787. The County Surrogate Court Clerk maintain records of wills, letters testamentary, letters of administration, orders and decrees, and appointments of guardians; and filed papers, including original wills, petitions for probate (gives date of death and lists next of kin), performance bonds, property inventories (seldom found after ca. 1900), administrator's or executor's accountings, etc. Surrogate's Courts create comprehensive indexes to records and files.
- Suffolk County Treasurer is responsible for the collection of taxes.
- Suffolk County Historian maintains archival holdings for virtually every facet of the county’s history. In New York State, every municipality (town, city, village, county) must have an appointed historian. Most of the towns have their own historians as well and each can be contacted. The County Historian may provide access to obituaries, vital records, church records, maps, and family files or journals. Some historians provide search services for their office records and others may refer you to local genealogists who research in the area.
Suffolk County, New York Census Records
- Learn More: State of New York Census Records
- U.S. Federal Population Schedules: 1790, 1800, 1810, 1820, 1830, 1840, 1850, 1860, 1870, 1880 (free index), 1890 (fragmented), 1900, 1910, 1920, 1930, 1940
- U.S. Census Reconstructed Records: 1660-1820
- State Population Schedules: 1855, 1865, 1875, 1892, 1905, 1915, 1925
- Other State Census Schedules: Census of Inmates in Almshouses and Poorhouses, 1830-1920, Census Mortality Schedules, 1850-1880, Non-Population Schedules 1850-1880
- U.S. Federal Census Mortality Schedules: 1850, 1860, 1870 and 1880
- Selected U.S. Federal Census Agriculture Schedules: 1850, 1860, 1870 and 1880
- Selected U.S. Federal Census Industry Schedules: 1850, 1860, 1870 and 1880
- Union Veterans Schedules: 1890
Suffolk County, New York Vital Records
- Learn More: State of New York Vital Records
- Birth and Death Records: from 1880 to present
- Marriage Records: from 1880 to present
- Divorce Records: from January 1963 to present. Earlier Records are in the County Clerk's Office.
- Locations: New York State Dept of Health, Vital Records Section
- Vital Records Online: USAVital or Social Security Death Index
- Vital Records by Mail: Birth Certificate, Marriage Certificate, Divorce Certificate, Death Certificate, Genealogy Applications.
- In Person: New York State Dept of Health, Vital Records Section, Empire State Plaza, Albany, NY 12237; (518) 474-3077, (518) 474-3038 Information
Suffolk County, New York Resources
- State of New York Archives and Societies
- RAOGK Volunteers for New York
- Genealogy Federation of Long Island
- Suffolk County Historical Society
- The Computer Genealogy Society of Long Island
- Germany Genealogy Group
- Jewish Genealogy Society of Long Island
- Patchogue-Medford Library Genealogy Research Group
- Genealogy Workshop of the Huntington Historical Society
- Longwood Genealogy Group
- Huntington Historical Society Library
- Suffolk County Historical Society Library
- Suffolk Cooperative Library System;
- Smithtown Public Library
- East Hampton Library
- Sag Harbor History Room
- Celia M. Hastings Local History Room
- Diocese of Rockville Centre
- New York Genealogy Research Community
- Suffolk County, New York Message Boards
- Suffolk County, New York Genealogy Forum
Suffolk County, New York External Links
- Historical Newspapers from New York (1719 - 1992)
- Suffolk County, New York Books - Amazon
- The Salmon records : a private register of marriages and deaths of the residents of the town of Southold, Suffolk County, N.Y.,
- Deaths taken from The Republican Watchman
- Marriages of Suffolk County, N.Y. : taken from the "Republican Watchman,"
- Records of the town of East-Hampton, Long Island, Suffolk Co., N.Y.
- Huntington town records : including Babylon, Long Island, N.Y.
- The book of records of the town of Southampton
- Records of the town of Brookhaven
- The sixth volume of record of Southampton, L.I., N.Y.
- Brookhaven town records.
- The Babylon town patents
- Grave stone inscriptions from Oakland Cemetery, Sag Harbor, L.I.
- Cemetery inscriptions from Riverhead, Long Island, New York
- Suffolk Co., New York - FindaGrave
- Presbyterian Church, East Hampton, New York, church records 1696-1884
- Records of the town of East-Hampton, Long Island, Suffolk County, New York, Vol. 2, 4, and 5
- East Hampton Trustees journal
- Records, town of Brookhaven
- Portrait and biographical record of Suffolk County (Long Island) New York
- Thomas Halsey of Hertfordshire, England, and Southampton, Long Island, 1591-1679
- Suffolk County, New York Links - Cyndi's List
- Suffolk Co. NYGenweb
- Suffolk County, New York Ancestry Database Collections
- Islip town's World War II effort
- Suffolk County, New York Military Records