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 on September 23, 2026.
Marinette County, Wisconsin, has about 42,000 residents (2024 Census Bureau estimate), and arrests there are reported to the FBI by the Marinette County Sheriff's Office and five city agencies. An arrest leaves the same records whoever makes it: the arresting agency's report, the record of anyone held at the county jail, and, if the District Attorney files charges, a case in the Marinette County Circuit Court. This guide says who keeps each one, what it costs and who may see it, with the arrest counts each agency reported.
This guide covers who makes arrests, how many arrests, booking and the jail, finding an arrest, copies, cities and common questions.
Related guides: Marinette County public records, Wisconsin arrest records, Wisconsin inmate search and Wisconsin criminal records.
Who Makes Arrests in Marinette County
The Marinette County Sheriff's Office is the county agency that reports arrests to the FBI for Marinette County. It reported 917 arrests for 2025.
Arrests inside five of the county's cities are reported to the FBI by an agency of the city's own, listed here with the Census population and what each reported:
- Marinette, 11,139 residents: 762 arrests reported for 2025.
- Peshtigo, 3,409 residents: 115 arrests reported for 2025.
- Niagara, 1,579 residents: 59 arrests reported for 2025.
- Crivitz, 1,118 residents.
- Coleman, 731 residents.
A city on that list is reported separately whether the officers are the city's own or the sheriff's under contract; the FBI's list does not say which.
How Many Arrests Each Agency Reports in Marinette County
Each agency reports its arrests to the FBI by month, and the FBI publishes them on the Crime Data Explorer. These are the full-year totals, all offenses, as the FBI held them on October 8, 2026; a year with months missing or not reported is left out.
- Marinette County Sheriff's Office: 917 for 2025, 1,024 for 2023, 750 for 2022, 813 for 2021, 807 for 2020 and 1,191 for 2019; 2024 is missing months.
- Marinette: 762 for 2025, 946 for 2024, 906 for 2023, 691 for 2022, 735 for 2021 and 507 for 2020.
- Peshtigo: 115 for 2025, 148 for 2024, 67 for 2023, 113 for 2021, 74 for 2020 and 138 for 2019; 2022 is missing months.
- Niagara: 59 for 2025, 58 for 2024, 111 for 2023, 87 for 2022 and 76 for 2019; 2020 and 2021 are missing months.
Together, the four agencies with all twelve months of 2025 on file reported 1,853 arrests that year. The three of them with both 2025 and 2024 complete reported 936 in 2025 against 1,152 in 2024, down 19 percent.
Through March 2026, the four agencies with every month so far on file reported 403 arrests, against 487 in the same months of 2025.
Crivitz reported only part of 2025 (3 months) and is left out of the totals.
Booking: Where People Arrested in Marinette County Are Held
A person kept in custody after an arrest in Marinette County is held at the county jail, whichever agency made the arrest, apart from the short stay some city departments' own holding cells allow; a person cited and released at the scene is not booked at all. The jail's record of each person held, with the charges, is a public record of the arrest, and the court file takes over from there.
On an average day in 2025 the jail held about 130 people, up from about 110 in 2019. Its rated capacity in 2025 was 165 beds, and it ran at 79 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
SearchSystems opened and checked the jail page of the Marinette County Sheriff's Office at marinettecountywi.gov/departments/office-of-sheriff/jail (page title: Marinette County | Departments | Office of Sheriff | Jail), phone 888-868-4631, 2161 University Drive Marinette, WI 54143, Monday thru Friday 8:00 AM - 4:30 PM, which answered when SearchSystems opened it on September 23, 2026.
A sentence of more than a year is served in state prison; the Wisconsin Department of Corrections lists its inmates at appsdoc.wi.gov/lop/welcome.
How to Find Out About an Arrest in Marinette County
Whether someone was arrested in Marinette County, and what came of it, shows up in two places: the case index of the Marinette County Circuit Court, which shows whether charges were filed and the next court date (the court records page SearchSystems verified is at wicourts.gov/SearchWicourts;jsessionid=8022E6AC15E0177266A18FDA9FDC...); the District Attorney, which decides whether an arrest becomes a charge (its page is at marinettecountywi.gov/contact_us/?department=96899d68c9b8, phone 715-732-7490).
Statewide, Wisconsin Circuit Court Access is the free statewide case search of every circuit court.
Wisconsin is one of the states that lets anyone look up another person's statewide criminal history: the Wisconsin Online Record Check System lets anyone run a name-based check, through the Wisconsin Department of Justice. That record shows what agencies reported to the state, which is wider than one county's court index but can lag it.
Getting a Copy of an Arrest Record in Marinette County
The report of an arrest is released by the agency that made it; the jail and the court hold their own records of the same event, but not the report. Under the Wisconsin Public Records Law the agency must answer as soon as practicable and without delay; the law sets no number of days, and it may charge the actual cost of copying and locating, with no charge for the first $50 of locating.
- An arrest by the Marinette County Sheriff's Office: ask its records unit, reached through the office at 888-868-4631.
- An arrest in Marinette, Peshtigo, Niagara, Crivitz or Coleman: the records unit of the agency that reports for that city.
- A defendant who has been charged gets the report through the case: the District Attorney, 715-732-7490, handles discovery for pending cases.
- The court file of a case that was filed: the Marinette County Circuit Court, through the court records page at wicourts.gov.
- Your own statewide record: the same request described above, for your own name.
Cities in Marinette County: Who Reports the Arrests
The FBI lists a separate arrest reporting agency for five of the seven cities in Marinette County: Marinette, Peshtigo, Niagara, Crivitz and Coleman. Wausaukee and Pound have no separate reporting agency in the FBI's list.
Wherever in the county the arrest happens, a person kept in custody goes to the county jail and the case goes to the Marinette County Circuit Court.
Frequently Asked Questions
How many arrests are made in Marinette County each year?
The Marinette County Sheriff's Office reported 917 arrests to the FBI for 2025, and the four agencies with every month of 2025 on file reported 1,853 between them.
How do I find out if someone is in jail in Marinette County?
Ask the Marinette County Sheriff's Office at 888-868-4631; its jail page SearchSystems verified is at marinettecountywi.gov.
Where are people arrested in Marinette County booked?
Those kept in custody go to the county jail, run by the Marinette County Sheriff's Office; a person cited and released at the scene is not booked.
Are arrest records public in Marinette County?
The court files of criminal cases are public, and so is the statewide criminal history kept by the Wisconsin Department of Justice: the Wisconsin Online Record Check System lets anyone run a name-based check. The arrest report itself is released by the agency that made the arrest, under the Wisconsin Public Records Law.
How do I get a copy of an arrest report in Marinette County?
From the agency that made the arrest: the Marinette County Sheriff's Office for its own arrests, or the agency that reports for the city where it happened. Under the Wisconsin Public Records Law the answer is due as soon as practicable and without delay; the law sets no number of days.
Is this the official Marinette 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.