Nassau County Genealogy
Be notified of updates to this site by liking us on Facebook
Like us on Facebook to help us expand the resources on this site
See also the counties of Long Island:
Kings County, Queens County, Suffolk County
See also Long Island
Nassau County Countywide Sources
1790-1940 U.S. Fed. Census Archives
1790-1940 United States Federal Census World Vital Records
1910-present New York City Birth Certificates (order here) Archives
1930-present New York City Marriage Certificates (order here) Archives
1949-present New York City Death Certificates (order here) Archives
American Genealogical Biographical Index Databases World Vital Records
American Genealogical-Biographical Index (AGBI)
BillionGraves Cemetery Records Index Family Search
Daily Review of Nassau County, 1921 New York Heritage
Federal Land Patents Bureau of Land Management
Find A Grave Gravestone, Tombstone, and Memorial Photo Collection World Vital Records
Glimpses of Nassau County's history
Index to old records : of municipalities or corporations consolidated with or annexed to any of the component parts of the City of New York before consolidation Family History Library
LI, History of Suffolk & Nassau Long Island Genealogy
Long Island cemeteries : in 13 volumes Family History Library
Marriage records, 1908-1915 Family History Library
Marriages on Long Island, New York, 1802-1855 : marriages performed by Rev. Marmaduke Earl, mainly in the township of Oysterbay Family History Library
Military Naturalization Records of Nassau and Suffolk Counties (World War I, World War II, and Korean War) German Genealogy Group
Nassau Co., New York, census records, 1915 Family History Library
Nassau Co., New York, census records, 1925 Family History Library
Nassau County Marriage Index 1908-1935 Italian Genealogical Group
Nassau County Review selections, 1899-1921 New York Heritage
Nassau County Supreme Court Naturalizations 1899-1989 Italian Genealogical Group
Nassau County cemeteries Family History Library
Nassau County pocket atlas Family History Library
Nassau Post, 1914-1918 New York Heritage
Naturalization records, 1899-1906 Family History Library
New York Births and Christenings, 1640-1962 Family Search
New York Deaths and Burials, 1795-1952 Family Search
New York Marriages, 1600-1784
New York Marriages, 1686-1980 Family Search
New York Naturalization Records for the Eastern District (Kings, Richmond, Queens, Nassau, and Suffolk Counties) 1865-1957 Italian Genealogical Group
New York, County Marriages, 1908-1935 Family Search
Pioneers and patriots of Long Island, 1640-1840 Family History Library
Priests and parishes of the Diocese of Brooklyn, 1820 to 1990 Family History Library
Rate lists of Long Island, 1675, 1676, 1683 Family History Library
U.S. Federal Census 1790-1940 Family Search
Union Free School 1929
United States Obituary Collection
United States, New England Naturalization Index, 1791-1906 Family Search
More Nassau County records are available on the statewide page