Lewis County Genealogy Records

Lewis County genealogy records reach back to 1805, the year this rural Adirondack county was carved from Oneida County. The county clerk in Lowville holds land records, court filings, marriage records, and state census data for the area. Probate files sit at the Surrogate's Court. Lewis County is one of the smaller counties in New York, but its records are well preserved and offer a solid base for anyone tracing family connections through the North Country. Genealogy searches here typically start at the clerk's office and expand to state-level resources.

Lewis County Clerk Office

The Lewis County Clerk is the main source for genealogy records in the county. Land records begin in 1805 and cover every property transaction since then. Court records from the same year include both Supreme Court and County Court filings. Marriage records from 1908 to 1935 are also on file. New York State Census records for Lewis County cover the years 1825 through 1925, filling in gaps between the federal census counts.

The office is at 7660 North State Street in Lowville, NY 13367. Phone number is (315) 377-2000. When you visit in person, you can search grantor and grantee indexes for land records. Deeds and mortgages show who bought and sold property, which can help trace a family through the area over time. The state census records are especially helpful for Lewis County genealogy because they captured information in years when no federal count took place. Some years list names, ages, and birthplaces that the federal census did not always record.

The Lewis County Clerk's website provides contact details and office hours for researchers.

Call ahead to confirm hours before making the trip, as smaller county offices sometimes have limited schedules.

Probate Records in Lewis County

The Lewis County Surrogate's Court keeps probate records from 1805 to the present. Wills, letters of administration, and estate settlement papers are filed here. If an ancestor died in Lewis County, this court is where you look for their will or estate file.

The Surrogate's Court Procedure Act gives each county in New York its own court for probate matters. To get copies, send a written request by U.S. mail with the name of the person and their date of death. The court does not accept email requests for record searches. The address is 7660 North State Street, Lowville, NY 13367. The phone is (315) 377-2001. Search fees and copy fees apply.

The Estates, Powers and Trust Law governs how wills are proved and how property passes when someone dies without a will in New York. Intestate succession rules determine who gets what when there is no will on file. These records can name family members who might not show up in any other document.

Note: FamilySearch has microfilmed some Lewis County surrogate's court records that can be viewed for free online.

Lewis County Vital Records Access

Birth and death records for Lewis County sit with the town clerk in each town where the event happened. Statewide registration began in 1880 for deaths and 1881 for births and marriages. The New York State Department of Health has copies of vital records filed outside New York City. Fees start at $22 for a three-year search and increase based on the time range.

Under Public Health Law Sections 4173 and 4174, birth certificates become available after 75 years if the person is dead. Death certificates open after 50 years. Marriage certificates require 50 years and proof that both spouses have died. Direct-line descendants can request records sooner with proof of relationship and proof of death. State processing times run eight months or more. Going to the local town clerk is faster for most requests.

The New York State Archives holds vital records indexes on microfiche that cover the whole state outside New York City. Lewis County researchers can access these indexes at the Archives in Albany or at any of the 11 microfiche locations around the state.

State Archives and Lewis County

The New York State Archives has records that support Lewis County genealogy research. Colonial wills, military records, and land documents are all available. New York residents can access digitized colonial wills for free through Ancestry.com New York. Military records cover conflicts from the colonial period through World War I.

Under Arts and Cultural Affairs Law Section 57.05, the State Archives preserves official records and provides public access. The New York State Library in Albany has family histories and genealogy reference works in its Local History and Genealogy section. Materials cannot be borrowed. You use them on-site during library hours. The library is at 222 Madison Avenue in the Cultural Education Center.

The FamilySearch catalog lists microfilmed records from Lewis County, including church records, probate files, and town records. Many have been digitized and are free to view online. Check the catalog for specific years and record types available for Lewis County.

Additional Lewis County Genealogy Resources

Lewis County was formed from Oneida County in 1805. For records before that date, check the Oneida County Clerk in Utica. Families moved between these counties often, and older land deeds or court files may sit in the Oneida County office. The Flower Memorial Library at 229 Washington Street in Watertown holds copies of the New York State vital records microfiche indexes. That is closer to Lewis County than Albany and a good option for in-person research.

Reclaim The Records won the release of the full New York State Death Index from 1880 to 2017 in a 2025 court case. This free data covers Lewis County deaths with names, dates, ages, and state file numbers. Use those numbers when ordering copies from the Department of Health or a local town clerk. It saves both time and money because you know the record exists before you pay.