Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest counts are the ones each agency reported to the FBI, as the FBI held them on October 8, 2026. The jail figures are from the Vera Institute of Justice's Incarceration Trends data. Every office link was opened and checked against the office's own site between September 23, 2026 and October 2, 2026.
Lewis County, New York, has about 27,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Lewis County is held at the county jail, run by the Lewis County Sheriff's Office, and the jail's record of each person held is a public record. This guide says where to look for someone in custody, what the jail holds and who books people into it.
This guide covers the search, the jail, who books people, state prison and common questions.
Related guides: Lewis County public records, Lewis County arrest records, Lewis County warrants, Lewis County criminal records, Lewis County court records, New York arrest records and New York inmate search.
Finding Someone in Custody in Lewis County
The county jail, run by the Lewis County Sheriff's Office, holds everyone kept in custody after an arrest in Lewis County, from every agency.
SearchSystems opened and checked the custody page of the Lewis County Sheriff's Office at lewiscountyny.org (page title: About Lewis County Jail, New York | Inmate Search), a site that blocks automated checks (HTTP 403), so open it in a browser.
Someone booked recently shows on that page; someone cited and released at the scene, or held a few hours at a city station, does not.
The Lewis County Jail by the Numbers
So far in 2026 the jail has held about 29 people on an average day, down from about 34 in 2019. Its rated capacity in 2022, the last year with a capacity figure, was 42 beds, and it ran at 62 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Lewis County has about 27,000 residents (2024 Census Bureau estimate), so the jail holds about 11 people for every 10,000 residents.
Who Books People Into the Lewis County Jail
The Lewis County Sheriff's Office and the agency that reports for Lowville make the arrests that end in a booking in Lewis County.
The largest arrest counts reported to the FBI were the Lewis County Sheriff's Office's 193 for 2025 and Lowville's 45 for 2024.
Together, the two agencies in Lewis County with all twelve months of 2024 on file reported 254 arrests to the FBI that year. Those kept in custody were booked into the county jail; a person cited and released at the scene was not.
The counts, agency by agency and year by year, are in Lewis County arrest records.
From the Jail to State Prison
The jail holds people awaiting trial and people serving short sentences. A person sentenced to prison in Lewis County serves the sentence in a facility of the New York State Department of Corrections and Community Supervision, whose inmate locator is at nysdoccslookup.doccs.ny.gov.
Frequently Asked Questions
How do I find an inmate in Lewis County?
Look on the custody page of the Lewis County Sheriff's Office at lewiscountyny.org. It covers people booked into the county jail.
How many people are in the Lewis County jail?
About 29 on an average day so far in 2026, against a rated capacity of 42 beds.
Where do people sentenced to prison in Lewis County go?
To a facility of the New York State Department of Corrections and Community Supervision; its inmate locator is at nysdoccslookup.doccs.ny.gov.
Is this the official Lewis County website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official county, court and state offices described above and does not hold records, charge for them or take requests.