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 September 25, 2026.
Winnebago County, Illinois, has about 284,000 residents (2024 Census Bureau estimate). Its court cases are filed in the Circuit Court of Winnebago 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, cities and common questions.
Related guides: Winnebago County public records, Winnebago County arrest records, Winnebago County warrants, Winnebago County inmate search, Winnebago County criminal records, Illinois arrest records and Illinois inmate search.
The Courts That Hear Cases from Winnebago County
In Winnebago County, the Circuit Court of Winnebago 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 Winnebago County
For Winnebago County, SearchSystems opened and checked the court records page for the county at circuitclerk.wincoil.gov/access-court-records (page title: Access Court Records | Online Case Information | Winnebago County 17 Judicial Circuit Clerk Design), phone 815-319-4500, 400 West State St., Rockford, IL 61101, 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 Winnebago County
Together, the 11 agencies in Winnebago County with all twelve months of 2025 on file reported 8,899 arrests to the FBI that year; the State's Attorney decides which of those arrests become cases in the Circuit Court of Winnebago County.
The Kinds of Court Files
Criminal cases, divorces, traffic tickets and evictions all end up as files of these courts, and the file is what the public sees of each.
The other Winnebago County guides take the kinds of file one at a time: Winnebago County criminal records, Winnebago County divorce records, Winnebago County traffic tickets, Winnebago County DUI and Winnebago County property records.
Cities in Winnebago County
Wherever in the county a case arises, it is filed in the Circuit Court of Winnebago County.
SearchSystems has a guide to the offices of these cities in Winnebago County, with the 2024 Census Bureau population; a city with its own court records guide opens there:
- Rockford (147,486)
- Loves Park (23,636)
- Machesney Park (22,839)
- South Beloit (7,983)
- Rockton (7,861)
Frequently Asked Questions
How do I look up a court case in Winnebago County?
The court records page SearchSystems verified for the county is at circuitclerk.wincoil.gov/access-court-records, phone 815-319-4500.
Which court hears felonies in Winnebago County?
The Circuit Court of Winnebago County, which hears every civil, criminal, family, probate, traffic and juvenile case.
Who keeps the court records in Winnebago County?
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 Winnebago 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.