Reviewed and updated October 11, 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 11, 2026.
Oshkosh, Wisconsin, in Winnebago County, has about 67,000 residents (2024 Census Bureau estimate). Its court cases are filed in the Winnebago County Circuit Court, and the file of each case, kept by the Clerk of Circuit Court, 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: Oshkosh public records, Winnebago County court records, Oshkosh arrest records, Oshkosh warrants, Oshkosh inmate search, Oshkosh criminal records, Wisconsin arrest records and Wisconsin inmate search.
The Courts That Hear Cases from Oshkosh
Court cases from Oshkosh are filed in the Winnebago County Circuit Court, which hears every civil, criminal, family, probate and juvenile case.
A city with a municipal court of its own tries the tickets written under its ordinances.
Divorces go to the Circuit Court, and the file stays with the Clerk of Circuit Court.
The Clerk of Circuit Court keeps the files, and a copy of anything in a file comes from that office, under the court's own rules rather than the Wisconsin Public Records Law.
Looking Up a Case from Oshkosh
The court records page SearchSystems verified for the county is at ww2.winnebagocountywi.gov/clerk-courts/fees-filing (page title: Fees & Filing | Winnebago County, Wisconsin), a site that blocks automated checks (HTTP 403), so open it in a browser.
Statewide, Wisconsin Circuit Court Access is the free statewide case search of every circuit court.
The Wisconsin court page SearchSystems verified is at wicourts.gov/casesearch.htm.
What Reaches the Court from Oshkosh
Together, the seven agencies in Winnebago County with all twelve months of 2025 on file reported 6,932 arrests to the FBI that year; the District Attorney decides which of those arrests become cases in the Winnebago County Circuit Court.
The District Attorney's page SearchSystems verified is at winnebagocountywi.gov/291/District-Attorney (page title: District Attorney | Winnebago County, WI), 448 Algoma Boulevard Oshkosh, WI 54901, 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 Oshkosh guides take the kinds of file one at a time: Oshkosh criminal records, Oshkosh divorce records, Oshkosh traffic tickets, Oshkosh DUI and Oshkosh property records.
Frequently Asked Questions
How do I look up a court case in Oshkosh?
Through Wisconsin Circuit Court Access, the free statewide case search of every circuit court.
Which court hears felonies in Oshkosh?
The Winnebago County Circuit Court, which hears every civil, criminal, family, probate and juvenile case.
Who keeps the court records in Oshkosh?
The Clerk of Circuit Court. Copies come from that office under the court's own rules.
Is there a statewide court case search in Wisconsin?
Yes: Wisconsin Circuit Court Access, the free statewide case search of every circuit court.
Is this the official Oshkosh 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.