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 September 28, 2026.
Elmhurst, Illinois, in DuPage County, has about 46,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Elmhurst is held at the county jail, run by the DuPage 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: Elmhurst public records, DuPage County inmate search, Elmhurst arrest records, Elmhurst warrants, Elmhurst criminal records, Elmhurst court records, Illinois arrest records and Illinois inmate search.
Finding Someone in Custody in Elmhurst
A person kept in custody after an arrest in Elmhurst is held at the county jail, run by the DuPage County Sheriff's Office, whichever agency made the arrest.
SearchSystems opened and checked the jail page of the DuPage County Sheriff's Office at dupagesheriff.org (page title: DuPage County Sheriff’s Office), which answered when SearchSystems opened it on September 28, 2026.
That page is the office's jail information page rather than a roster.
The DuPage County Jail by the Numbers
On an average day in 2022 the jail held about 490 people, down from about 530 in 2019. Its rated capacity in 2019, the last year with a capacity figure, was 963 beds, and it ran at 55 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
DuPage County has about 937,000 residents (2024 Census Bureau estimate), so the jail holds about 5 people for every 10,000 residents.
Who Books People Into the DuPage County Jail
The DuPage County Sheriff's Office and the agency that reports for Elmhurst (filed by the FBI as Elmhurst Police Department) make the arrests that end in a booking in and around Elmhurst.
The FBI's agency list also places two other agencies and two campus police departments in DuPage County (the arrest records guide names each one).
The Hanover Park Police Department, the St. Charles Police Department, the Bolingbrook Police Department and two more are each listed by the FBI across several counties including DuPage County, so their arrests are not broken out for DuPage County here.
The largest arrest counts reported to the FBI were Carol Stream's 693 for 2025, Bloomingdale's 617 for 2023 and Elmhurst's 617 for 2025.
Together, the 27 agencies in DuPage County with all twelve months of 2025 on file reported 6,532 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 Elmhurst 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 Elmhurst?
Ask the DuPage County Sheriff's Office; its jail page SearchSystems verified is at dupagesheriff.org.
How many people are in the DuPage County jail?
About 490 on an average day in 2022, the latest year in the Vera Institute's jail data, against a rated capacity of 963 beds.
Where do people sentenced to prison in DuPage 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 Elmhurst website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official city, county, court and state offices described above and does not hold records, charge for them or take requests.