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 between September 23, 2026 and September 30, 2026.
Dunn County, Wisconsin, has about 46,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Dunn County is held at the county jail, run by the Dunn County Sheriff's Office, and the jail's record of each person held is a public record. This guide says where to look for someone in custody, what the jail holds and who books people into it.
This guide covers the search, the jail, who books people, state prison and common questions.
Related guides: Dunn County public records, Dunn County arrest records, Dunn County warrants, Dunn County criminal records, Dunn County court records, Wisconsin arrest records and Wisconsin inmate search.
Finding Someone in Custody in Dunn County
The county jail, run by the Dunn County Sheriff's Office, holds everyone kept in custody after an arrest in Dunn County, from every agency.
SearchSystems opened and checked the custody page of the Dunn County Sheriff's Office at dunncountywi.gov/index.asp (page title: CURRENT INMATE LISTING | ADD HERE | Dunn County, WI), 3001 US Highway 12 East, Suite 225, Menomonie, WI 54751, which answered when SearchSystems opened it on September 30, 2026.
Someone booked recently shows on that page; someone cited and released at the scene, or held a few hours at a city station, does not.
The Dunn County Jail by the Numbers
On an average day in 2025 the jail held about 88 people, down from about 93 in 2019. Its rated capacity in 2025 was 160 beds, and it ran at 55 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Dunn County has about 46,000 residents (2024 Census Bureau estimate), so the jail holds about 19 people for every 10,000 residents.
Who Books People Into the Dunn County Jail
The Dunn County Sheriff's Office and the agencies that report for Menomonie, Colfax, Boyceville and Elk Mound make the arrests that end in a booking in Dunn County.
The FBI's agency list also places one more agency in Dunn County: the University of Wisconsin at Stout (campus police).
The largest arrest counts reported to the FBI were Menomonie's 803 for 2025, the Dunn County Sheriff's Office's 596 for 2023 and Boyceville's 62 for 2025.
Together, the three agencies in Dunn County with all twelve months of 2025 on file reported 916 arrests to the FBI that year. Those kept in custody were booked into the county jail; a person cited and released at the scene was not.
The counts, agency by agency and year by year, are in Dunn County arrest records.
From the Jail to State Prison
The jail holds people awaiting trial and people serving short sentences. A person sentenced to prison in Dunn County serves the sentence in a facility of the Wisconsin Department of Corrections, whose inmate locator is at appsdoc.wi.gov/lop/welcome.
Frequently Asked Questions
How do I find an inmate in Dunn County?
Look on the custody page of the Dunn County Sheriff's Office at dunncountywi.gov/index.asp. It covers people booked into the county jail.
How many people are in the Dunn County jail?
About 88 on an average day in 2025, the latest year in the Vera Institute's jail data, against a rated capacity of 160 beds.
Where do people sentenced to prison in Dunn County go?
To a facility of the Wisconsin Department of Corrections; its inmate locator is at appsdoc.wi.gov/lop/welcome.
Is this the official Dunn 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.