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.
Belvidere, Illinois, in Boone County, has about 25,000 residents (2024 Census Bureau estimate). Its court cases are filed in the Circuit Court of Boone 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: Belvidere public records, Boone County court records, Belvidere arrest records, Belvidere warrants, Belvidere criminal records, Belvidere police reports, Illinois arrest records and Illinois inmate search.
The Courts That Hear Cases from Belvidere
Court cases from Belvidere are filed in the Circuit Court of Boone County, which 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 Belvidere
For Boone County, SearchSystems opened and checked the court records page for the county at boonecircuitclerk.us/page/11/court-records (page title: Boone County Circuit Clerk | Court Records), phone 815-544-0371, 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 Belvidere
Together, the two agencies in Boone County with all twelve months of 2025 on file reported 1,287 arrests to the FBI that year; the State's Attorney decides which of those arrests become cases in the Circuit Court of Boone County.
The State's Attorney's page SearchSystems verified is at boonecountyil.gov/government/departments/state_s_attorney/index.php, phone 815.544.0868, Monday - Friday 8:00 am - 5:00 pm, which answered when SearchSystems opened it on September 23, 2026.
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 Belvidere guides take the kinds of file one at a time: Belvidere criminal records, Belvidere divorce records, Belvidere traffic tickets, Belvidere DUI and Belvidere property records.
Frequently Asked Questions
How do I look up a court case in Belvidere?
The court records page SearchSystems verified for the county is at boonecircuitclerk.us/page/11/court-records, phone 815-544-0371.
Which court hears felonies in Belvidere?
The Circuit Court of Boone County, which hears every civil, criminal, family, probate, traffic and juvenile case.
Who keeps the court records in Belvidere?
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 Belvidere 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.