Reviewed and updated October 11, 2026 by the SearchSystems.net editorial team. The arrest and crime 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.
Winnebago County, Wisconsin, has about 173,000 residents (2024 Census Bureau estimate). In Wisconsin the public criminal record is the court file, kept by the Clerk of Circuit Court; the statewide criminal history kept by the Wisconsin Department of Justice is open to anyone who asks. This guide says where each record of a criminal case from Winnebago County is kept and how it is seen.
This guide covers the court file, the statewide record, local arrest records, the crimes behind the records, the prosecutor, sex offender registry, records requests, directory links and common questions.
Related guides: Winnebago County public records, Winnebago County arrest records, Winnebago County warrants, Winnebago County inmate search, Winnebago County court records, Wisconsin arrest records and Wisconsin inmate search.
Criminal Cases in the Winnebago County Circuit Court
In Wisconsin the public criminal record is the court file. Criminal cases from Winnebago County are heard by the Winnebago County Circuit Court, which hears every civil, criminal, family, probate and juvenile case, and the file of each case is kept by the Clerk of Circuit Court.
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 Criminal History and Your Own Copy
Wisconsin is one of the states that lets anyone look up another person's statewide criminal history: the Wisconsin Online Record Check System lets anyone run a name-based check, through the Wisconsin Department of Justice. The result is the repository record, what agencies reported to the state, which is wider than one county's court index but can lag it.
Arrest Records Kept Locally in Winnebago County
The Winnebago County Sheriff's Office and the agencies that report for Oshkosh, Neenah, Fox Crossing, Menasha, Omro and Winneconne keep the arrest records in Winnebago County: the report and the booking record of each arrest stay with the agency that made it, separate from the court file and from the state repository.
The FBI's agency list also places one more agency in Winnebago County: the University of Wisconsin at Oshkosh (campus police); it keeps the records of its own arrests.
The Appleton Police Department is listed by the FBI across three counties including Winnebago County, so its arrests are not broken out for Winnebago County here.
Together, the seven agencies in Winnebago County with all twelve months of 2025 on file reported 6,932 arrests to the FBI that year; how each case ended is in the court file, not in the arresting agency's.
The agencies and their counts, year by year, are in Winnebago County arrest records.
The Crimes Behind the Records: Winnebago County in 2025
The seven agencies in Winnebago County with all twelve months of 2025 on file reported 273 violent and 1,393 property crimes to the FBI that year; the same agencies with both 2025 and 2024 complete reported 1,666 crimes in 2025 against 2,012 in 2024. Each reported crime is a report on file with the agency that took it, and each arrest that follows is the start of a criminal record.
The full crime section, agency by agency, is on the Winnebago County public records guide.
The District Attorney for Winnebago County
Charges in Winnebago County are filed by the District Attorney, which reviews the arrests of every agency in the county and brings the cases in the Winnebago County Circuit Court.
The office'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 Sex Offender Registry for Winnebago County
Registered sex offenders living in Winnebago County are listed on the Wisconsin Sex Offender Registry, run by the Wisconsin Department of Corrections at wistaysafe.gov. The registry is public and can be searched online.
Registration itself is done in person with the local agency where the registrant lives: the sheriff's office, or the city police in a city with its own department.
Asking an Agency in Winnebago County for a Record
An arrest report, a booking record or a local criminal history letter comes from the agency that holds it, not from the court.
Under the Wisconsin Public Records Law a county office must answer a request as soon as practicable and without delay; the law sets no number of days, and it may charge the actual cost of copying and locating, with no charge for the first $50 of locating. The county records request page SearchSystems verified is at winnebagocountysheriffwi.nextrequest.com (page title: Public Records Online PortalNextRequest | Modern FOIA & Public Records Request Software).
More Official Criminal Records Pages for Winnebago County
The SearchSystems directory, online since 1997, lists the official pages for Winnebago County and Wisconsin. These criminal records pages from its Winnebago County listing were opened again on October 2, 2026 and each one still answers:
- Winnebago County Most Wanted (winnebagocountywi.gov)
Frequently Asked Questions
Are criminal records public in Winnebago County?
The court files of criminal cases are public, and so is the statewide criminal history kept by the Wisconsin Department of Justice: the Wisconsin Online Record Check System lets anyone run a name-based check. The arrest report itself is released by the agency that made the arrest, under the Wisconsin Public Records Law.
Can I search Winnebago County criminal cases online?
Wisconsin Circuit Court Access is the free statewide case search of every circuit court.
How do I get my own Wisconsin criminal history?
Through the same record check, run on yourself.
Who prosecutes crimes in Winnebago County?
The District Attorney, which files its cases in the Winnebago County Circuit 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.