Mercer County NJ Genealogy

USA (1,379,301) > New Jersey (19,801) > Mercer County (1,161)


Mercer County Records by City/Town

East Windsor Genealogy (40)
Ewing Genealogy (58)
Hamilton Genealogy (90)
Hamilton Square Genealogy (43)
Hightstown Genealogy (84)
Hopewell Genealogy (66)
Lawrence Genealogy (41)


Lawrenceville Genealogy (56)
Pennington Genealogy (84)
Penns Neck Genealogy (37)
Princeton Genealogy (237)
Trenton Genealogy (532)
West Windsor Genealogy (40)

Overview of Mercer County Records

  • Mercer County was created in 1838 from Somerset, Middlesex, Hunterdon, and Burlington counties.
  • Birth records for 1848 to 1920, marriage records for 1848 to 1930, and death records for 1848 to 1930 can be obtained from the New Jersey State Archives. Birth records for 1921 and later, marriage records for 1931 and later, and death records for 1931 and later can be obtained from the New Jersey Department of Health.
  • The Mercer County Surrogate has probate records starting in 1838.
  • The Mercer County Clerk has court and land records starting in 1838, judgments, tax maps, and corporation records.
  • Online indexes and images of some of the above records can be found by using the links on this site.