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. The jail figures are from the Vera Institute of Justice's Incarceration Trends data. Every office link was opened and checked against the office's own site on September 23, 2026.
Walworth County, Wisconsin, has about 106,000 residents (2024 Census Bureau estimate), and arrests there are reported to the FBI by the Walworth County Sheriff's Office, 15 city agencies and one campus agency. An arrest leaves the same records whoever makes it: the arresting agency's report, the record of anyone held at the county jail, and, if the District Attorney files charges, a case in the Walworth County Circuit Court. This guide says who keeps each one, what it costs and who may see it, with the arrest counts each agency reported.
This guide covers who makes arrests, how many arrests, booking and the jail, finding an arrest, copies, cities and common questions.
Related guides: Walworth County public records, Wisconsin arrest records, Wisconsin inmate search and Wisconsin criminal records.
Who Makes Arrests in Walworth County
The Walworth County Sheriff's Office is the county agency that reports arrests to the FBI for Walworth County. It reported 1,544 arrests for 2025.
Arrests inside 13 of the county's cities are reported to the FBI by an agency of the city's own, listed here with the Census population and what each reported, the largest twelve first; the rest are named in the cities section below:
- Whitewater, 16,076 residents: 961 arrests reported for 2025.
- Elkhorn, 10,122 residents: 214 arrests reported for 2025.
- Delavan (town), 9,055 residents: 73 arrests reported for 2025.
- Delavan, 9,055 residents: 654 arrests reported for 2025.
- Lake Geneva, 8,691 residents: 688 arrests reported for 2025.
- East Troy, 5,011 residents: 149 arrests reported for 2025.
- East Troy (town), 5,011 residents: 95 arrests reported for 2025.
- Bloomfield, 4,766 residents: 82 arrests reported for 2025.
- Williams Bay, 2,961 residents: 16 arrests reported for 2025.
- Genoa City, 2,903 residents: 64 arrests reported for 2025.
- Walworth, 2,757 residents: 57 arrests reported for 2024.
- Fontana-on-Geneva Lake, 1,861 residents: 41 arrests reported for 2024.
A city on that list is reported separately whether the officers are the city's own or the sheriff's under contract; the FBI's list does not say which.
The Mukwonago Police Department is listed by the FBI across two counties including Walworth County, so its arrests are not broken out for Walworth County here.
The FBI's agency list also places one more agency in Walworth County: the University of Wisconsin at Whitewater (campus police).
How Many Arrests Each Agency Reports in Walworth County
Each agency reports its arrests to the FBI by month, and the FBI publishes them on the Crime Data Explorer. These are the full-year totals, all offenses, as the FBI held them on October 8, 2026; a year with months missing or not reported is left out.
- Walworth County Sheriff's Office: 1,544 for 2025, 1,316 for 2024, 1,225 for 2023, 1,182 for 2022, 1,245 for 2021 and 1,023 for 2020.
- Whitewater: 961 for 2025, 819 for 2024, 834 for 2023, 887 for 2022, 935 for 2021 and 681 for 2020.
- Lake Geneva: 688 for 2025, 651 for 2024, 513 for 2023, 496 for 2022, 553 for 2021 and 396 for 2020.
- Delavan: 654 for 2025, 558 for 2024, 647 for 2022, 656 for 2021, 475 for 2020 and 586 for 2019; 2023 is missing months.
- Elkhorn: 214 for 2025, 255 for 2024, 311 for 2023, 374 for 2022, 322 for 2021 and 232 for 2020.
- East Troy: 149 for 2025, 122 for 2024, 141 for 2023, 173 for 2022, 193 for 2021 and 153 for 2020.
- East Troy (town): 95 for 2025, 87 for 2024, 66 for 2022, 85 for 2021 and 68 for 2020; 2023 is missing months.
- Bloomfield: 82 for 2025, 66 for 2024, 382 for 2020 and 299 for 2019; 2021, 2022 and 2023 are missing months.
- Delavan (town): 73 for 2025, 77 for 2024, 70 for 2023, 48 for 2022, 66 for 2021 and 67 for 2020.
- Geneva Town: 69 for 2025, 73 for 2023, 71 for 2022, 107 for 2021, 226 for 2020 and 273 for 2019; 2024 is missing months.
- Genoa City: 64 for 2025, 37 for 2024, 84 for 2023, 115 for 2021 and 144 for 2019; 2020 and 2022 are missing months.
- Linn Township: 52 for 2025, 73 for 2024, 62 for 2023, 61 for 2022, 50 for 2021 and 61 for 2020.
Together, the 14 agencies with all twelve months of 2025 on file reported 4,679 arrests that year. The 12 of them with both 2025 and 2024 complete reported 4,594 in 2025 against 4,104 in 2024, up 12 percent.
Through March 2026, the 12 agencies with every month so far on file reported 980 arrests, against 1,096 in the same months of 2025.
Fontana-on-Geneva Lake and Walworth reported only part of 2025 (11 months and 11 months) and are left out of the totals.
Booking: Where People Arrested in Walworth County Are Held
A person kept in custody after an arrest in Walworth County is held at the county jail, whichever agency made the arrest, apart from the short stay some city departments' own holding cells allow; a person cited and released at the scene is not booked at all. The jail's record of each person held, with the charges, is a public record of the arrest, and the court file takes over from there.
On an average day in 2025 the jail held about 160 people, down from about 190 in 2019. Its rated capacity in 2025 was 512 beds, and it ran at 32 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
SearchSystems opened and checked the jail page of the Walworth County Sheriff's Office at co.walworth.wi.us/261/Corrections (page title: Corrections | Walworth County, WI), phone 262-741-4400, 1770 Cty Road NN Elkhorn, WI 53121, which answered when SearchSystems opened it on September 23, 2026.
A person sentenced to prison serves the sentence in a facility of the Wisconsin Department of Corrections, whose inmate locator is at appsdoc.wi.gov/lop/welcome.
How to Find Out About an Arrest in Walworth County
An arrest in Walworth County can be traced in two places, depending on where the case stands: the case index of the Walworth County Circuit Court, which shows whether charges were filed and the next court date (the court records page SearchSystems verified is at co.walworth.wi.us/339/Courts-Judicial-Center); the District Attorney, which decides whether an arrest becomes a charge (its page is at co.walworth.wi.us/204/District-Attorney, phone 262-741-7198).
Statewide, Wisconsin Circuit Court Access is the free statewide case search of every circuit court.
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. That record shows what agencies reported to the state, which is wider than one county's court index but can lag it.
Getting a Copy of an Arrest Record in Walworth County
An arrest report belongs to the agency whose officer wrote it, and that agency releases it, not the court or the jail. Under the Wisconsin Public Records Law the agency must answer 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.
- An arrest by the Walworth County Sheriff's Office: ask its records unit, reached through the office at 262-741-4400.
- An arrest in Whitewater, Elkhorn, Delavan (town), Delavan, Lake Geneva, East Troy or another of the cities listed above: the records unit of the agency that reports for that city; the city guides linked above name each city's records office.
- An arrest by the University of Wisconsin at Whitewater: the records office of the agency involved.
- A defendant who has been charged gets the report through the case: the District Attorney, 262-741-7198, handles discovery for pending cases.
- The court file of a case that was filed: the Walworth County Circuit Court, through the court records page at co.walworth.wi.us/339/Courts-Judicial-Center.
- Any county record that is not posted: the county records request page SearchSystems verified is at co.walworth.wi.us/1169/Public-Records-Request (page title: Public Records Request | Walworth County, WI).
- Your own statewide record: the same request described above, for your own name.
Cities in Walworth County: Who Reports the Arrests
The FBI lists a separate arrest reporting agency for 13 of the 12 cities in Walworth County: the twelve named above and Sharon. Darien has no separate reporting agency in the FBI's list. The FBI's list also carries the Geneva Town Police Department and the Linn Township Police Department as city agencies in Walworth County; Geneva Town and Linn Township are not among the cities above.
Wherever in the county the arrest happens, a person kept in custody goes to the county jail and the case goes to the Walworth County Circuit Court.
SearchSystems has a guide to the offices of these cities in Walworth County, with the 2024 Census Bureau population; a city with its own arrest records guide opens there:
- Lake Geneva (8,691)
Frequently Asked Questions
How many arrests are made in Walworth County each year?
The Walworth County Sheriff's Office reported 1,544 arrests to the FBI for 2025, and the 14 agencies with every month of 2025 on file reported 4,679 between them.
How do I find out if someone is in jail in Walworth County?
Ask the Walworth County Sheriff's Office at 262-741-4400; its jail page SearchSystems verified is at co.walworth.wi.us/261/Corrections.
Where are people arrested in Walworth County booked?
Those kept in custody go to the county jail, run by the Walworth County Sheriff's Office; a person cited and released at the scene is not booked.
Are arrest records public in Walworth 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.
How do I get a copy of an arrest report in Walworth County?
From the agency that made the arrest: the Walworth County Sheriff's Office for its own arrests, or the agency that reports for the city where it happened. Under the Wisconsin Public Records Law the answer is due as soon as practicable and without delay; the law sets no number of days; the county records request page SearchSystems verified is at co.walworth.wi.us/1169/Public-Records-Request.
Is this the official Walworth 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.