Nassau County NY Genealogy

USA (1,403,636) > New York (68,578) > Nassau County (1,221)

If you're not sure which records would be helpful, you can try our Ancestor Source Finder tool.

Nassau County Records by Type

Birth Records (16)
Cemetery Records (271)
Census Records (31)
Church Records (116)
City Directories (34)
Court Records (1)
Death Records (18)
Histories and Genealogies (41)
Immigration Records (8)
Land Records (6)
Map Records (104)
Marriage Records (44)
Military Records (6)
Minority Records (1)
Miscellaneous Records (3)
Newspapers and Obituaries (313)
Probate Records (2)
School Records (204)
Tax Records (2)

Nassau County Records by City/Town

Bellmore Genealogy (46)
Bethpage Genealogy (45)
Brookville Genealogy (42)
Cedarhurst Genealogy (42)
East Meadow Genealogy (44)
East Norwich Genealogy (41)
East Rockaway Genealogy (40)
Elmont Genealogy (56)
Farmingdale Genealogy (83)
Floral Park Genealogy (57)
Franklin Square Genealogy (40)
Freeport Genealogy (90)
Garden City Genealogy (58)
Glen Cove Genealogy (83)
Glen Head Genealogy (44)
Great Neck Genealogy (73)
Hempstead Genealogy (148)
Hewlett Genealogy (39)
Hicksville Genealogy (55)
Inwood Genealogy (39)
Jericho Genealogy (53)
Lawrence Village Genealogy (46)
Levittown Genealogy (51)
Locust Valley Genealogy (56)
Long Beach Genealogy (48)

Lynbrook Genealogy (61)
Malverne Genealogy (46)
Manhasset Genealogy (94)
Massapequa Genealogy (51)
Merrick Genealogy (45)
Mineola Genealogy (50)
New Hyde Park Genealogy (48)
North Hempstead Genealogy (40)
Oceanside Genealogy (42)
Oyster Bay Genealogy (162)
Plainview Genealogy (43)
Port Washington Genealogy (72)
Rockville Center Genealogy (70)
Sea Cliff Genealogy (46)
Seaford Genealogy (40)
Syosset Genealogy (44)
Uniondale Genealogy (44)
Upper Brookville Genealogy (39)
Valley Stream Genealogy (47)
Wantagh Genealogy (49)
Westbury Genealogy (57)
Williston Park Genealogy (41)
Woodbury in Nassau County Genealogy (42)
Woodmere Genealogy (42)

Overview of Nassau County Records

Nassau County was created in 1898 from Queens County.
The New York State Department of Health has copies of birth, marriage, and death records starting in 1880. Individual town or city clerks also have copies of birth, marriage, and death records.
The Nassau County Clerk has marriage records starting in 1907, land records starting in 1899, and divorce records.
The Nassau County Surrogate Court has probate records starting in 1899.
Online indexes and images of many of the above records can be found by using the links on this site.