Jefferson County NY Genealogy

USA (1,379,301) > New York (69,995) > Jefferson County (1,119)

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Jefferson County Records by Type

Birth Records (13)
Cemetery Records (320)
Census Records (73)
Church Records (73)
City Directories (130)
Court Records (2)
Death Records (20)
Histories and Genealogies (84)
Immigration Records (6)
Land Records (6)
Map Records (92)
Marriage Records (17)
Military Records (35)
Minority Records (1)
Miscellaneous Records (6)
Newspapers and Obituaries (155)
Probate Records (9)
School Records (75)
Tax Records (2)

Jefferson County Records by City/Town

Adams Genealogy (68)
Alexandria Genealogy (38)
Alexandria Bay Genealogy (51)
Antwerp Genealogy (68)
Belleville Genealogy (41)
Black River Genealogy (49)
Brownville Genealogy (60)
Cape Vincent Genealogy (72)
Carthage Genealogy (94)
Champion Genealogy (44)
Chaumont Genealogy (47)
Clayton Genealogy (79)
Dexter Genealogy (45)
Ellisburg Genealogy (43)
Evans Mills Genealogy (38)
Fort Drum Genealogy (38)
Great Bend Genealogy (36)
Henderson Genealogy (42)

Hounsfield Genealogy (49)
La Fargeville Genealogy (40)
LeRay Genealogy (43)
Lorraine Genealogy (38)
Lyme Genealogy (36)
Mannsville Genealogy (42)
Orleans Genealogy (39)
Pamelia Genealogy (36)
Philadelphia Genealogy (47)
Redwood Genealogy (36)
Rodman Genealogy (42)
Rutland Genealogy (41)
Sackets Harbor Genealogy (52)
Theresa Genealogy (53)
Thousand Island Park Genealogy (40)
Watertown Genealogy (276)
Worth Genealogy (37)

Overview of Jefferson County Records

Jefferson County was created in 1805 from Oneida 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 Jefferson County Clerk has marriage records starting in 1908, court records starting in 1805, land records starting in 1805, naturalization records, military discharge records starting in 1861, and state census records.
The Jefferson County Surrogate Court has probate records starting in 1805.
Online indexes and images of many of the above records can be found by using the links on this site.