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 26, 2026.
Plymouth, Wisconsin, in Sheboygan County, has about 8,900 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Plymouth is held at the county jail, run by the Sheboygan 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: Plymouth public records, Sheboygan County inmate search, Plymouth arrest records, Plymouth warrants, Plymouth criminal records, Plymouth court records, Wisconsin arrest records and Wisconsin inmate search.
Finding Someone in Custody in Plymouth
A person kept in custody after an arrest in Plymouth is held at the county jail, run by the Sheboygan County Sheriff's Office, whichever agency made the arrest.
SearchSystems opened and checked the custody page of the Sheboygan County Sheriff's Office at sheboygancounty.com/departments/departments-r-z/sheriff-s-departmen... (page title: Current Inmate List | Sheboygan County), which answered when SearchSystems opened it on September 23, 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 Sheboygan County Jail by the Numbers
On an average day in 2025 the jail held about 280 people, down from about 310 in 2019. Its rated capacity in 2025 was 391 beds, and it ran at 73 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Sheboygan County has about 118,000 residents (2024 Census Bureau estimate), so the jail holds about 24 people for every 10,000 residents.
Who Books People Into the Sheboygan County Jail
The Sheboygan County Sheriff's Office and the agency that reports for Plymouth (filed by the FBI as Plymouth Police Department) make the arrests that end in a booking in and around Plymouth.
The largest arrest counts reported to the FBI were Sheboygan's 2,939 for 2025, the Sheboygan County Sheriff's Office's 1,109 for 2024 and Plymouth's 308 for 2024.
Together, the five agencies in Sheboygan County with all twelve months of 2024 on file reported 4,701 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 Plymouth 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 Plymouth?
Look on the custody page of the Sheboygan County Sheriff's Office at sheboygancounty.com. It covers people booked into the county jail.
How many people are in the Sheboygan County jail?
About 280 on an average day in 2025, the latest year in the Vera Institute's jail data, against a rated capacity of 391 beds.
Where do people sentenced to prison in Sheboygan 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 Plymouth website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official city, county, court and state offices described above and does not hold records, charge for them or take requests.