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.
Allegany County, New York, has about 47,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Allegany County is held at the county jail, run by the Allegany 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: Allegany County public records, Allegany County arrest records, Allegany County warrants, Allegany County criminal records, Allegany County court records, New York arrest records and New York inmate search.
Finding Someone in Custody in Allegany County
The county jail, run by the Allegany County Sheriff's Office, holds everyone kept in custody after an arrest in Allegany County, from every agency.
SearchSystems opened and checked the custody page of the Allegany County Sheriff's Office at alleganycountysheriff-ny.gov/inmateSearch (page title: Inmate Search | Allegany County Sheriff’s Office NY), which answered when SearchSystems opened it on September 23, 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 Allegany County Jail by the Numbers
So far in 2026 the jail has held about 66 people on an average day, down from about 86 in 2019. Its rated capacity in 2019, the last year with a capacity figure, was 164 beds, and it ran at 52 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Allegany County has about 47,000 residents (2024 Census Bureau estimate), so the jail holds about 14 people for every 10,000 residents.
Who Books People Into the Allegany County Jail
The Allegany County Sheriff's Office and the agencies that report for Alfred, Wellsville, Bolivar, Andover, Belmont and Angelica make the arrests that end in a booking in Allegany County.
The FBI's agency list also places one more agency in Allegany County: the Alfred State University of New York Police (campus police).
The largest arrest counts reported to the FBI were Alfred's 213 for 2024, Wellsville's 191 for 2025 and the Allegany County Sheriff's Office's 143 for 2019.
Together, the eight agencies in Allegany County with all twelve months of 2024 on file reported 603 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 Allegany County arrest records.
From the Jail to State Prison
A sentence of more than a year is served in state prison, not the jail; the New York State Department of Corrections and Community Supervision lists its inmates at nysdoccslookup.doccs.ny.gov.
Frequently Asked Questions
How do I find an inmate in Allegany County?
Look on the custody page of the Allegany County Sheriff's Office at alleganycountysheriff-ny.gov/inmateSearch. It covers people booked into the county jail.
How many people are in the Allegany County jail?
About 66 on an average day so far in 2026, against a rated capacity of 164 beds.
Where do people sentenced to prison in Allegany 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 Allegany 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.