SearchSystems Editorial

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.

About this guide

Ozaukee County, Wisconsin, has about 94,000 residents (2024 Census Bureau estimate), and arrests there are reported to the FBI by the Ozaukee County Sheriff's Office and six 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 Ozaukee 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: Ozaukee County public records, Wisconsin arrest records, Wisconsin inmate search and Wisconsin criminal records.

Who Makes Arrests in Ozaukee County

The Ozaukee County Sheriff's Office is the county agency that reports arrests to the FBI for Ozaukee County. It reported 572 arrests for 2025.

Arrests inside six 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:

  • Mequon, 25,329 residents: 258 arrests reported for 2025.
  • Cedarburg, 13,011 residents: 65 arrests reported for 2025.
  • Port Washington, 12,750 residents: 333 arrests reported for 2025.
  • Grafton, 12,741 residents: 176 arrests reported for 2025.
  • Saukville, 4,305 residents: 215 arrests reported for 2025.
  • Thiensville, 3,299 residents: 15 arrests reported for 2025.

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.

The Bayside Police Department and the Newburg Police Department are each listed by the FBI across several counties including Ozaukee County, so their arrests are not broken out for Ozaukee County here.

How Many Arrests Each Agency Reports in Ozaukee County

The FBI publishes every agency's monthly arrest counts 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.

  • Ozaukee County Sheriff's Office: 572 for 2025, 768 for 2024, 678 for 2023, 641 for 2022, 658 for 2021 and 664 for 2020.
  • Port Washington: 333 for 2025, 336 for 2024, 356 for 2023, 317 for 2022, 347 for 2021 and 360 for 2020.
  • Mequon: 258 for 2025, 380 for 2024, 409 for 2022, 325 for 2021, 385 for 2020 and 877 for 2019; 2023 is missing months.
  • Saukville: 215 for 2025, 136 for 2024, 223 for 2023, 191 for 2022, 247 for 2021 and 310 for 2020.
  • Grafton: 176 for 2025, 182 for 2024, 192 for 2023, 244 for 2022, 241 for 2021 and 419 for 2020.
  • Cedarburg: 65 for 2025, 81 for 2024, 88 for 2023, 101 for 2022, 113 for 2021 and 201 for 2020.
  • Thiensville: 15 for 2025, 15 for 2024, 33 for 2023, 36 for 2022, 57 for 2021 and 66 for 2020.

Together, the seven agencies with all twelve months of 2025 on file reported 1,634 arrests that year. The same agencies with both 2025 and 2024 complete reported 1,634 in 2025 against 1,898 in 2024, down 14 percent.

Through March 2026, the seven agencies with every month so far on file reported 396 arrests, against 395 in the same months of 2025.

Booking: Where People Arrested in Ozaukee County Are Held

The county jail is where a person arrested in Ozaukee County and kept in custody ends up, whichever agency made the arrest, though a city department may hold someone in its own cells first and a person cited and released at the scene is never booked. The jail's record of each person held, with the charges, is a public record of the arrest, and once the person is released or sentenced the record continues in the court file.

On an average day in 2025 the jail held about 210 people, up from about 200 in 2019. Its rated capacity in 2025 was 262 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 Ozaukee County Sheriff's Office at ozaukeecounty.gov/165/Sheriff (page title: Ozaukee County Sheriff's Office | Ozaukee County, WI), phone (262) 284-7172, 1201 S Spring St Port Washington WI 53074-0245, Monday - Friday 8am - 5pm, 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 Ozaukee County

An arrest in Ozaukee County can be traced in two places, depending on where the case stands: the case index of the Ozaukee County Circuit Court, which shows whether charges were filed and the next court date (the court records page SearchSystems verified is at ozaukeecounty.gov/190/Access-Court-Records); the District Attorney, which decides whether an arrest becomes a charge (its page is at ozaukeecounty.gov/137/District-Attorney, phone 262-284-8380).

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 Ozaukee County

An arrest report belongs to the agency whose officer wrote it, and that agency releases it, not the court or the jail. 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 Ozaukee County Sheriff's Office: ask its records unit, reached through the office at (262) 284-7172.
  • An arrest in Mequon, Cedarburg, Port Washington, Grafton, Saukville or Thiensville: the records unit of the agency that reports for that city; the city guides linked above name each city's records office.
  • A defendant who has been charged gets the report through the case: the District Attorney, 262-284-8380, handles discovery for pending cases.
  • The court file of a case that was filed: the Ozaukee County Circuit Court, through the court records page at ozaukeecounty.gov/190/Access-Court-Records.
  • Any county record that is not posted: the county records request page SearchSystems verified is at ozaukeecounty.gov/176/Open-Records (page title: Open Records | Ozaukee County, WI).
  • Your own statewide record: the same request described above, for your own name.

Cities in Ozaukee County: Who Reports the Arrests

The FBI lists a separate arrest reporting agency for six of the eight cities in Ozaukee County: Mequon, Cedarburg, Port Washington, Grafton, Saukville and Thiensville. Belgium and Fredonia 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 Ozaukee County Circuit Court.

SearchSystems has a guide to the offices of these cities in Ozaukee County, with the 2024 Census Bureau population; a city with its own arrest records guide opens there:

Frequently Asked Questions

How many arrests are made in Ozaukee County each year?

The Ozaukee County Sheriff's Office reported 572 arrests to the FBI for 2025, and the seven agencies with every month of 2025 on file reported 1,634 between them.

How do I find out if someone is in jail in Ozaukee County?

Ask the Ozaukee County Sheriff's Office at (262) 284-7172; its jail page SearchSystems verified is at ozaukeecounty.gov/165/Sheriff.

Where are people arrested in Ozaukee County booked?

Those kept in custody go to the county jail, run by the Ozaukee County Sheriff's Office; a person cited and released at the scene is not booked.

Are arrest records public in Ozaukee 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 Ozaukee County?

From the agency that made the arrest: the Ozaukee 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; the county records request page SearchSystems verified is at ozaukeecounty.gov/176/Open-Records.

Is this the official Ozaukee 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.