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. Every office link was opened and checked against the office's own site between September 23, 2026 and October 1, 2026.
Westchester, Illinois, in Cook County, has about 16,000 residents (2024 Census Bureau estimate). Its court cases are filed in the Circuit Court of Cook County, and the file of each case, kept by the Circuit Clerk, is the public record of it. This guide says which court hears what, where to look a case up and who keeps the files.
This guide covers the courts, the records page, criminal cases, kinds of files and common questions.
Related guides: Westchester public records, Cook County court records, Westchester arrest records, Westchester warrants, Westchester inmate search, Westchester criminal records, Illinois arrest records and Illinois inmate search.
The Courts That Hear Cases from Westchester
In Westchester, the Circuit Court of Cook County hears every civil, criminal, family, probate, traffic and juvenile case.
Divorces go to the Circuit Court's domestic relations division, and the file stays with the Circuit Clerk.
The Circuit Clerk keeps the files, and a copy of anything in a file comes from that office, under the court's own rules rather than the Illinois Freedom of Information Act.
Looking Up a Case from Westchester
The court records page SearchSystems verified for the county is at cookcountyil.gov/service/court-records-and-archives (page title: Court Records and Archives), which answered when SearchSystems opened it on September 23, 2026.
Illinois has no single public index of every trial court case; each court's records are looked up through that court.
The Illinois court page SearchSystems verified is at illinoiscourts.gov.
What Reaches the Court from Westchester
Together, the 100 agencies in Cook County with all twelve months of 2025 on file reported 71,187 arrests to the FBI that year; the State's Attorney decides which of those arrests become cases in the Circuit Court of Cook County.
The State's Attorney's page SearchSystems verified is at cookcountyil.gov/agency/states-attorney (page title: States Attorney), phone (312) 603-1880, which answered when SearchSystems opened it on September 23, 2026.
The Kinds of Court Files
The court file is one record with several readers: a criminal case from the arrest to the sentence, a divorce from the petition to the judgment, a traffic ticket from the citation to the conviction the court reports to the Illinois Secretary of State, and an eviction or a lien on land.
The other Westchester guides take the kinds of file one at a time: Westchester criminal records, Westchester divorce records, Westchester traffic tickets, Westchester DUI and Westchester property records.
Frequently Asked Questions
How do I look up a court case in Westchester?
The court records page SearchSystems verified for the county is at cookcountyil.gov.
Which court hears felonies in Westchester?
The Circuit Court of Cook County, which hears every civil, criminal, family, probate, traffic and juvenile case.
Who keeps the court records in Westchester?
The Circuit Clerk. Copies come from that office under the court's own rules.
Is there a statewide court case search in Illinois?
No. Each court's records are looked up through that court.
Is this the official Westchester 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.