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 on September 23, 2026.
Oswego County, New York, has about 118,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Oswego County is held at the county jail, run by the Oswego 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: Oswego County public records, Oswego County arrest records, Oswego County warrants, Oswego County criminal records, Oswego County court records, New York arrest records and New York inmate search.
Finding Someone in Custody in Oswego County
A person kept in custody after an arrest in Oswego County is held at the county jail, run by the Oswego County Sheriff's Office, whichever agency made the arrest.
SearchSystems opened and checked the jail page of the Oswego County Sheriff's Office at oswegocountyny.gov/departments/public_safety/sheriff/corrections_di... (page title: Oswego County, NY), phone 800-596-3200, which answered when SearchSystems opened it on September 23, 2026.
That page is the office's jail information page rather than a roster, so a search for a particular person goes through the office at 800-596-3200.
The Oswego County Jail by the Numbers
So far in 2026 the jail has held about 120 people on an average day, down from about 120 in 2019. Its rated capacity in 2019, the last year with a capacity figure, was 159 beds, and it ran at 78 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Oswego County has about 118,000 residents (2024 Census Bureau estimate), so the jail holds about 10 people for every 10,000 residents.
Who Books People Into the Oswego County Jail
The Oswego County Sheriff's Office and the agencies that report for Oswego, Fulton, Pulaski, Phoenix and Central Square make the arrests that end in a booking in Oswego County.
The FBI's agency list also places one more agency in Oswego County: the Oswego State University of New York Police (campus police).
The largest arrest counts reported to the FBI were Oswego's 1,129 for 2025, the Oswego County Sheriff's Office's 944 for 2025 and Fulton's 636 for 2025.
Together, the five agencies in Oswego County with all twelve months of 2025 on file reported 2,746 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 Oswego 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 Oswego 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 Oswego County?
Ask the Oswego County Sheriff's Office at 800-596-3200; its jail page SearchSystems verified is at oswegocountyny.gov.
How many people are in the Oswego County jail?
About 120 on an average day so far in 2026, against a rated capacity of 159 beds.
What is the phone number for the Oswego County jail?
800-596-3200, the number on the page of the Oswego County Sheriff's Office SearchSystems verified.
Where do people sentenced to prison in Oswego 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 Oswego 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.