Search Essex County Genealogy
Essex County genealogy records date to 1799 when the county was carved out of Clinton County in the heart of the Adirondack region. The county clerk in Elizabethtown keeps land deeds, court files, marriage records, and naturalization papers spanning more than two centuries. Essex County also has the Adirondack History Center Museum with family papers and local history materials. The surrogate's court holds probate files from 1799 forward. If your ancestors settled in the Adirondacks or worked in the iron mines and lumber camps of northern New York, Essex County records are where you start your search.
Essex County Genealogy Overview
Essex County Clerk Genealogy Records
The Essex County Clerk is at 7559 Court Street in Elizabethtown, NY 12932. Phone is (518) 873-3600. Land records start in 1799 and run to the present. These include deeds, mortgages, and liens that track property ownership through the Adirondack region.
Court records from 1799 cover Supreme Court and County Court cases. Marriage records span 1908 to 1935, filed under the Domestic Relations Law. Naturalization records run from 1799 to 1956, a long stretch that captures waves of immigration into the iron-mining towns of the county. New York State Census records for 1855 through 1925 are also on file.
Records are indexed by grantor and grantee for land, and by name and date for other files. Copy fees are $0.65 per page. Certification costs $5.00. You can visit in person during business hours or send a mail request.
Adirondack History Center Museum
The Adirondack History Center Museum at 7590 Court Street in Elizabethtown holds collections for Essex County genealogy. Call (518) 873-6466 for visiting hours. The museum has family papers, photographs, maps, and a research library with Adirondack and local history materials.
If your ancestors worked in the iron industry around Mineville and Port Henry, or in the logging camps around Newcomb and Long Lake, the museum may have records that the county clerk does not. Church records and local newspapers are part of the archive as well. These can fill in details that official records miss, especially for rural Adirondack communities where record-keeping was sometimes thin.
The museum is right next to the courthouse in Elizabethtown, so you can visit both in a single trip.
The New York State Archives in Albany also holds indexes that cover Essex County vital records.
Essex County Probate and Estate Records
The Essex County Surrogate's Court has probate records from 1799 to the present. The court is at 7559 Court Street in Elizabethtown. Phone is (518) 873-3601. Wills, estate inventories, and guardianship papers are all available.
Estate files can show family relationships that other records do not. A will might list children by name, mention land parcels, or name executors who were close family members. Under the Surrogate's Court Procedure Act, you can request copies by writing to the court with the decedent's name and approximate death date. The Estates, Powers and Trust Law governs wills and inheritance in New York.
Note: FamilySearch has microfilmed some Essex County surrogate records, so check their catalog before making the trip to Elizabethtown.
State Resources for Essex County Genealogy
The New York State Archives in Albany holds vital records indexes for Essex County. Birth indexes run through 1937 with a 75-year delay. Death and marriage indexes open after 50 years. You can view the microfiche at the Cultural Education Center on the Empire State Plaza. No appointment is needed. Bring a photo ID.
The closest microfiche index location to Essex County is the Crandall Public Library at 251 Glen Street in Glens Falls. That is closer than Albany for many Essex County researchers. The NYS Department of Health charges $22 for a three-year search of their vital records. Processing can take eight months or more. For faster service, contact the local registrar in the town where the event took place.
Reclaim The Records released the full New York State Death Index from 1880 to 2017 as a free download after a 2025 court ruling. This data covers Essex County deaths and includes names, dates, ages, and state file numbers.
Essex County Genealogy Research Tips
Essex County was formed from Clinton County. If your ancestor lived in this area before 1799, check Clinton County records for earlier files. The New York State Census years of 1855, 1865, 1875, 1892, 1905, 1915, and 1925 are all worth checking. These fill gaps between the federal census and sometimes list birthplace and occupation.
FamilySearch has digitized many Essex County records for free access. Check under "New York, Essex" in their catalog. Church records from small Adirondack parishes can be hard to find, but the Adirondack History Center Museum and the county historian may have collected some. Under Arts and Cultural Affairs Law Section 57.19, each county appoints a historian to preserve records of local importance.
Naturalization and Census Records for Essex County Genealogy
Naturalization records at the Essex County Clerk cover 1799 to 1956. This long span captures waves of immigrants who came to work in the iron mines around Mineville and Port Henry and the lumber camps of the Adirondacks. Before 1906, county courts handled citizenship. These papers list the person's old country, when they arrived, and sometimes name a spouse and children. They are indexed by name and date.
The closest vital records microfiche index location to Essex County is the Crandall Public Library at 251 Glen Street in Glens Falls. That is far closer than Albany and a good option for a research day trip. FamilySearch has indexed federal census records from 1800 to 1950 for Essex County, all free to search online.
Nearby Counties for Genealogy
Essex County borders several other Adirondack and North Country counties. Check these for related genealogy materials.