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 October 2, 2026.
Lafayette County, Wisconsin, has about 17,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Lafayette County is held at the county jail, run by the Lafayette 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: Lafayette County public records, Lafayette County arrest records, Lafayette County warrants, Lafayette County criminal records, Lafayette County court records, Wisconsin arrest records and Wisconsin inmate search.
Finding Someone in Custody in Lafayette County
A person kept in custody after an arrest in Lafayette County is held at the county jail, run by the Lafayette County Sheriff's Office, whichever agency made the arrest.
SearchSystems opened and checked the jail page of the Lafayette County Sheriff's Office at lcsheriff.com/detention (page title: Detention | Lafayette County Sheriff Office), which answered when SearchSystems opened it on September 23, 2026.
That page is the office's jail information page rather than a roster.
The Lafayette County Jail by the Numbers
On an average day in 2025 the jail held about 20 people, down from about 22 in 2019. Its rated capacity in 2025 was 25 beds, and it ran at 78 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Lafayette County has about 17,000 residents (2024 Census Bureau estimate), so the jail holds about 11 people for every 10,000 residents.
Who Books People Into the Lafayette County Jail
The Lafayette County Sheriff's Office and the agencies that report for Darlington, Shullsburg, Blanchardville and Argyle make the arrests that end in a booking in Lafayette County.
The Cuba City Police Department and the Hazel Green Police Department are each listed by the FBI across several counties including Lafayette County, so their arrests are not broken out for Lafayette County here.
The largest arrest counts reported to the FBI were the Lafayette County Sheriff's Office's 260 for 2025, Darlington's 106 for 2024 and Shullsburg's 1 for 2019.
The counts, agency by agency and year by year, are in Lafayette County arrest records.
From the Jail to State Prison
A sentence of more than a year is served in state prison, not the jail; the Wisconsin Department of Corrections lists its inmates at appsdoc.wi.gov/lop/welcome.
Frequently Asked Questions
How do I find an inmate in Lafayette County?
Ask the Lafayette County Sheriff's Office; its jail page SearchSystems verified is at lcsheriff.com/detention.
How many people are in the Lafayette County jail?
About 20 on an average day in 2025, the latest year in the Vera Institute's jail data, against a rated capacity of 25 beds.
Where do people sentenced to prison in Lafayette 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 Lafayette 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.