Reviewed and updated October 11, 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 11, 2026.
Delaware County, New York, has about 44,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Delaware County is held at the county jail, run by the Delaware 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: Delaware County public records, Delaware County arrest records, Delaware County warrants, Delaware County criminal records, Delaware County court records, New York arrest records and New York inmate search.
Finding Someone in Custody in Delaware County
A person kept in custody after an arrest in Delaware County is held at the county jail, run by the Delaware County Sheriff's Office, whichever agency made the arrest.
SearchSystems opened and checked the custody page of the Delaware County Sheriff's Office at delawarecountysheriffny.gov/inmatesearchfeed (page title: Incarcerated Inmate Search | Delaware County Sheriff's Office NY), which answered when SearchSystems opened it on October 11, 2026.
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 Delaware County Jail by the Numbers
So far in 2026 the jail has held about 71 people on an average day, down from about 77 in 2019. Its rated capacity in 2019, the last year with a capacity figure, was 121 beds, and it ran at 64 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Delaware County has about 44,000 residents (2024 Census Bureau estimate), so the jail holds about 16 people for every 10,000 residents.
Who Books People Into the Delaware County Jail
The Delaware County Sheriff's Office and the agencies that report for Sidney, Walton and Hancock make the arrests that end in a booking in Delaware County.
The FBI's agency list also places these agencies in Delaware County: the Delhi State University of New York Police (campus police); the Delaware County New York City Department of Environmental Police (other agency).
The largest arrest counts reported to the FBI were Walton's 1,152 for 2025, Sidney's 150 for 2025 and the Delaware County Sheriff's Office's 122 for 2025.
Together, the six agencies in Delaware County with all twelve months of 2025 on file reported 1,490 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 Delaware 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 Delaware 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 Delaware County?
Look on the custody page of the Delaware County Sheriff's Office at delawarecountysheriffny.gov/inmatesearchfeed. It covers people booked into the county jail.
How many people are in the Delaware County jail?
About 71 on an average day so far in 2026, against a rated capacity of 121 beds.
Where do people sentenced to prison in Delaware 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 Delaware 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.