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.
Perry County, Illinois, has about 20,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Perry County is held at the county jail, run by the Perry 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: Perry County public records, Perry County arrest records, Perry County warrants, Perry County criminal records, Perry County court records, Illinois arrest records and Illinois inmate search.
Finding Someone in Custody in Perry County
The county jail, run by the Perry County Sheriff's Office, holds everyone kept in custody after an arrest in Perry County, from every agency.
SearchSystems opened and checked the jail page of the Perry County Sheriff's Office at isoms.perrycountysheriff.net/portal/Jail (page title: Inmates | ISOMS Portal), which answered when SearchSystems opened it on September 23, 2026.
That page is the office's jail information page rather than a roster.
The Perry County Jail by the Numbers
On an average day in 2019 the jail held about 66 people. Its rated capacity in 2019 was 58 beds, and it ran at 114 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Perry County has about 20,000 residents (2024 Census Bureau estimate), so the jail holds about 33 people for every 10,000 residents.
Who Books People Into the Perry County Jail
The Perry County Sheriff's Office and the agencies that report for Du Quoin, Pinckneyville and Willisville make the arrests that end in a booking in Perry County.
The largest arrest counts reported to the FBI were Willisville's 1,152 for 2025, the Perry County Sheriff's Office's 121 for 2025 and Du Quoin's 91 for 2025.
Together, the four agencies in Perry County with all twelve months of 2025 on file reported 1,378 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 Perry 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 Illinois Department of Corrections lists its inmates at idoc.illinois.gov/offender/inmatesearch.html.
Frequently Asked Questions
How do I find an inmate in Perry County?
Ask the Perry County Sheriff's Office; its jail page SearchSystems verified is at isoms.perrycountysheriff.net/portal/Jail.
How many people are in the Perry County jail?
About 66 on an average day in 2019, the latest year in the Vera Institute's jail data, against a rated capacity of 58 beds.
Where do people sentenced to prison in Perry County go?
To a facility of the Illinois Department of Corrections; its inmate locator is at idoc.illinois.gov/offender/inmatesearch.html.
Is this the official Perry 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.