Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest counts are the ones the agency reported to the FBI, through 2025. 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.
Clarendon Hills, Illinois, in DuPage County, has about 8,700 residents (2024 Census Bureau estimate), and its arrests are reported to the FBI by an agency of its own. An arrest in the city leaves the same records whoever makes it: the arresting agency's report, the record of anyone held at the county jail, and, if the State's Attorney files charges, a case in the Circuit Court of DuPage County. This guide says who keeps each one, what it costs and who may see it, with the arrest counts the agency reported.
This guide covers who makes arrests, how many arrests, booking and the jail, finding an arrest, copies and common questions.
Related guides: Clarendon Hills public records, DuPage County arrest records, Illinois arrest records and Illinois inmate search.
Who Makes Arrests in Clarendon Hills
The FBI lists Clarendon Hills with an arrest reporting agency of its own, filed as Clarendon Hills Police Department. It reported 18 arrests for 2025. A city is listed separately whether the officers are the city's own or the sheriff's under contract; the FBI's list does not say which.
Outside the city, the DuPage County Sheriff's Office is the county agency. It reported 279 arrests for 2025.
The FBI's agency list also places these agencies in DuPage County: DuPage County Forest Preserve and the Naperville Park District (other); the College of DuPage and Benedictine University at Lisle (campus police).
How Many Arrests Clarendon Hills Reports
Each agency reports its arrests to the FBI by month, and the FBI publishes them on the Crime Data Explorer. These are the full-year totals, all offenses, as the FBI held them on October 8, 2026; a year with months missing or not reported is left out.
- Clarendon Hills: 18 for 2025, 59 for 2024, 36 for 2023, 0 for 2020 and 0 for 2019; 2021 and 2022 are missing months.
Clarendon Hills's 18 arrests in 2025 were down 69 percent from 59 in 2024.
Through June 2026, Clarendon Hills reported 1 arrests, against 12 in the same months of 2025.
Across DuPage County, the 27 agencies with all twelve months of 2025 on file reported 6,532 arrests between them.
Booking: Where People Arrested in Clarendon Hills Are Held
A person kept in custody after an arrest in Clarendon Hills is held at the county jail, whichever agency made the arrest, apart from the short stay some city departments' own holding cells allow; a person cited and released at the scene is not booked at all. The jail's record of each person held, with the charges, is a public record of the arrest, and the court file takes over from there.
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.
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.
A sentence of more than a year is served in state prison; the Illinois Department of Corrections lists its inmates at idoc.illinois.gov/offender/inmatesearch.html.
How to Find Out About an Arrest in Clarendon Hills
An arrest in Clarendon Hills can be traced in two places, depending on where the case stands: the case index of the Circuit Court of DuPage County, which shows whether charges were filed and the next court date (the court records page SearchSystems verified is at dupagecircuitclerk.gov); the State's Attorney, which decides whether an arrest becomes a charge (its page is at dupagecounty.gov/elected_officials/state_s_attorney, phone 630-407-8000).
Illinois is one of the states that lets anyone look up another person's statewide criminal history: conviction information is public under the Uniform Conviction Information Act, through the Illinois State Police. That record shows what agencies reported to the state, which is wider than one county's court index but can lag it.
Getting a Copy of an Arrest Record in Clarendon Hills
An arrest report belongs to the agency whose officer wrote it, and that agency releases it, not the court or the jail. Under the Illinois Freedom of Information Act the agency must answer within 5 business days, with one 5-day extension, and it may charge copying only after the first 50 pages.
- An arrest by the Clarendon Hills police: the police records page SearchSystems verified at clarendonhills.us/FormCenter/Applications-Forms-5/Police-Report-Fre... (page title: Form Center, Obtain Police Report | Freedom of Information), phone 630-286-5400, which answered when SearchSystems opened it on September 26, 2026.
- An arrest by the DuPage County Sheriff's Office: ask its records unit.
- A defendant who has been charged gets the report through the case: the State's Attorney, 630-407-8000, handles discovery for pending cases.
- The court file of a case that was filed: the Circuit Court of DuPage County, through the court records page at dupagecircuitclerk.gov.
- Your own statewide record: a name-based or fingerprint-based request to the Illinois State Police.
The DuPage County guide covers every agency in the county: DuPage County arrest records.
Frequently Asked Questions
How many arrests are made in Clarendon Hills each year?
Clarendon Hills reported 18 arrests to the FBI for 2025, its latest full year.
How do I find out if someone is in jail in Clarendon Hills?
Ask the DuPage County Sheriff's Office; its jail page SearchSystems verified is at dupagesheriff.org.
Where are people arrested in Clarendon Hills booked?
Those kept in custody go to the county jail, run by the DuPage County Sheriff's Office; a person cited and released at the scene is not booked.
Are arrest records public in Clarendon Hills?
The court files of criminal cases are public, and so is the statewide criminal history kept by the Illinois State Police: conviction information is public under the Uniform Conviction Information Act. The arrest report itself is released by the agency that made the arrest, under the Illinois Freedom of Information Act.
How do I get a copy of an arrest report in Clarendon Hills?
From the agency that made the arrest: the Clarendon Hills police for its own arrests, the DuPage County Sheriff's Office for the sheriff's. Under the Illinois Freedom of Information Act the answer is due within 5 business days, with one 5-day extension.
Is this the official Clarendon Hills 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.