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 between September 23, 2026 and October 2, 2026.
Henry County, Illinois, has about 48,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Henry County is held at the county jail, run by the Henry 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: Henry County public records, Henry County arrest records, Henry County warrants, Henry County criminal records, Henry County court records, Illinois arrest records and Illinois inmate search.
Finding Someone in Custody in Henry County
The county jail, run by the Henry County Sheriff's Office, holds everyone kept in custody after an arrest in Henry County, from every agency.
SearchSystems opened and checked the jail page of the Henry County Sheriff's Office at henrycty.com/m/directory/department?did=59 (page title: Sheriff's Office | Staff Directory), phone 309-937-3901, 311 W Center Street Cambridge, IL 61238, Monday through Friday 8:00 am to 4:30 pm, which answered when SearchSystems opened it on October 2, 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 309-937-3901.
The Henry County Jail by the Numbers
On an average day in 2019 the jail held about 100 people. Its rated capacity in 2019 was 132 beds, and it ran at 77 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Henry County has about 48,000 residents (2024 Census Bureau estimate), so the jail holds about 21 people for every 10,000 residents.
Who Books People Into the Henry County Jail
The Henry County Sheriff's Office and the agencies that report for Kewanee, Geneseo, Colona, Galva, Cambridge, Orion and four more cities make the arrests that end in a booking in Henry County.
The FBI's agency list also places one more agency in Henry County: Black Hawk College at Kewanee (campus police).
The Coal Valley Police Department is listed by the FBI across two counties including Henry County, so its arrests are not broken out for Henry County here.
The largest arrest counts reported to the FBI were Alpha's 1,152 for 2025, Galva's 1,152 for 2025 and the Henry County Sheriff's Office's 338 for 2025.
Together, the nine agencies in Henry County with all twelve months of 2025 on file reported 2,848 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 Henry 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 Henry County?
Ask the Henry County Sheriff's Office at 309-937-3901; its jail page SearchSystems verified is at henrycty.com/m/directory/department?did=59.
How many people are in the Henry County jail?
About 100 on an average day in 2019, the latest year in the Vera Institute's jail data, against a rated capacity of 132 beds.
What is the phone number for the Henry County jail?
309-937-3901, the number on the page of the Henry County Sheriff's Office SearchSystems verified.
Where do people sentenced to prison in Henry 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 Henry 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.