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.
Randolph County, Illinois, has about 30,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Randolph County is held at the county jail, run by the Randolph 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: Randolph County public records, Randolph County arrest records, Randolph County warrants, Randolph County criminal records, Randolph County court records, Illinois arrest records and Illinois inmate search.
Finding Someone in Custody in Randolph County
A person kept in custody after an arrest in Randolph County is held at the county jail, run by the Randolph County Sheriff's Office, whichever agency made the arrest.
SearchSystems opened and checked the custody page of the Randolph County Sheriff's Office at randolphcountyil.gov/sheriff/current-inmate-listing (page title: Current Inmate Listing | Randolph County, Illinois), which answered when SearchSystems opened it on September 23, 2026.
That page is the place to look for someone booked recently. A person cited and released at the scene, or held only a few hours by a city department, will not be on it.
The Randolph County Jail by the Numbers
On an average day in 2023 the jail held about 24 people, down from about 36 in 2019. Its rated capacity in 2023 was 44 beds, and it ran at 56 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Randolph County has about 30,000 residents (2024 Census Bureau estimate), so the jail holds about 8 people for every 10,000 residents.
Who Books People Into the Randolph County Jail
The Randolph County Sheriff's Office and the agencies that report for Chester, Sparta, Red Bud, Coulterville, Prairie du Rocher, Ellis Grove and two more cities make the arrests that end in a booking in Randolph County.
The largest arrest counts reported to the FBI were Prairie du Rocher's 1,152 for 2025, Baldwin's 1,152 for 2025 and Chester's 130 for 2025.
Together, the eight agencies in Randolph County with all twelve months of 2025 on file reported 2,583 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 Randolph 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 Randolph County serves the sentence in a facility of the Illinois Department of Corrections, whose inmate locator is at idoc.illinois.gov/offender/inmatesearch.html.
Frequently Asked Questions
How do I find an inmate in Randolph County?
Look on the custody page of the Randolph County Sheriff's Office at randolphcountyil.gov. It covers people booked into the county jail.
How many people are in the Randolph County jail?
About 24 on an average day in 2023, the latest year in the Vera Institute's jail data, against a rated capacity of 44 beds.
Where do people sentenced to prison in Randolph 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 Randolph 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.