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 24, 2026.
St. Croix County, Wisconsin, has about 98,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in St. Croix County is held at the county jail, run by the St. Croix 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: St. Croix County public records, St. Croix County arrest records, St. Croix County warrants, St. Croix County criminal records, St. Croix County court records, Wisconsin arrest records and Wisconsin inmate search.
Finding Someone in Custody in St. Croix County
The county jail, run by the St. Croix County Sheriff's Office, holds everyone kept in custody after an arrest in St. Croix County, from every agency.
SearchSystems opened and checked the jail page of the St. Croix County Sheriff's Office at sccwi.gov/214/Jail (page title: Jail | St. Croix County, WI), phone 715-386-4752, 1101 Carmichael Rd Suite G200 Hudson, WI 54016, which answered when SearchSystems opened it on September 23, 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 715-386-4752.
The St. Croix County Jail by the Numbers
On an average day in 2025 the jail held about 110 people, down from about 120 in 2019. Its rated capacity in 2025 was 185 beds, and it ran at 58 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
St. Croix County has about 98,000 residents (2024 Census Bureau estimate), so the jail holds about 11 people for every 10,000 residents.
Who Books People Into the St. Croix County Jail
The St. Croix County Sheriff's Office and the agencies that report for Hudson, New Richmond, North Hudson, Somerset, Roberts, Hammond and one more cities make the arrests that end in a booking in St. Croix County.
The Spring Valley Police Department and the River Falls Police Department are each listed by the FBI across several counties including St. Croix County, so their arrests are not broken out for St. Croix County here.
The largest arrest counts reported to the FBI were the St. Croix County Sheriff's Office's 781 for 2025, New Richmond's 621 for 2022 and Hudson's 551 for 2025.
Together, the five agencies in St. Croix County with all twelve months of 2022 on file reported 2,284 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 St. Croix 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 St. Croix County?
Ask the St. Croix County Sheriff's Office at 715-386-4752; its jail page SearchSystems verified is at sccwi.gov/214/Jail.
How many people are in the St. Croix County jail?
About 110 on an average day in 2025, the latest year in the Vera Institute's jail data, against a rated capacity of 185 beds.
What is the phone number for the St. Croix County jail?
715-386-4752, the number on the page of the St. Croix County Sheriff's Office SearchSystems verified.
Where do people sentenced to prison in St. Croix 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 St. Croix 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.