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 28, 2026.
Clark County, Wisconsin, has about 35,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Clark County is held at the county jail, run by the Clark 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: Clark County public records, Clark County arrest records, Clark County warrants, Clark County criminal records, Clark County court records, Wisconsin arrest records and Wisconsin inmate search.
Finding Someone in Custody in Clark County
A person kept in custody after an arrest in Clark County is held at the county jail, run by the Clark County Sheriff's Office, whichever agency made the arrest.
SearchSystems opened and checked the jail page of the Clark County Sheriff's Office at clarkcountywi.gov/sheriff-mobile-menu (page title: Sheriff Mobile Menu | Clark County WI), phone (715) 743-3157, 517 Court St, Room 308, Neillsville, WI 54456, which answered when SearchSystems opened it on September 28, 2026.
That page is the office's jail information page rather than a roster, so a search for a particular person goes through the office at (715) 743-3157.
The Clark County Jail by the Numbers
On an average day in 2025 the jail held about 30 people, down from about 52 in 2019. Its rated capacity in 2025 was 126 beds, and it ran at 24 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Clark County has about 35,000 residents (2024 Census Bureau estimate), so the jail holds about 9 people for every 10,000 residents.
Who Books People Into the Clark County Jail
The Clark County Sheriff's Office and the agencies that report for Neillsville, Thorp, Loyal and Greenwood make the arrests that end in a booking in Clark County.
The Colby-Abbotsford Police Department is listed by the FBI across two counties including Clark County, so its arrests are not broken out for Clark County here.
The largest arrest counts reported to the FBI were Owen-Withee's 1,159 for 2025, Neillsville's 100 for 2025 and the Clark County Sheriff's Office's 63 for 2024.
Together, the three agencies in Clark County with all twelve months of 2022 on file reported 1,299 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 Clark 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 Clark County?
Ask the Clark County Sheriff's Office at (715) 743-3157; its jail page SearchSystems verified is at clarkcountywi.gov/sheriff-mobile-menu.
How many people are in the Clark County jail?
About 30 on an average day in 2025, the latest year in the Vera Institute's jail data, against a rated capacity of 126 beds.
What is the phone number for the Clark County jail?
(715) 743-3157, the number on the page of the Clark County Sheriff's Office SearchSystems verified.
Where do people sentenced to prison in Clark 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 Clark 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.