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 October 9, 2026.
Muskego, Wisconsin, in Waukesha County, has about 26,000 residents (2024 Census Bureau estimate). An OWI arrest in Muskego starts two cases, a criminal case in the Waukesha County Circuit Court and a license case before the Division of Motor Vehicles, and leaves three records. This guide follows the arrest from the roadside to the court file and the driving record.
This guide covers the law, the arrest, booking, the court case, the license case, the records and common questions.
Related guides: Muskego public records, Waukesha County OWI, Muskego arrest records, Muskego warrants, Muskego inmate search, Muskego criminal records, Wisconsin arrest records and Wisconsin inmate search.
The OWI Law in Wisconsin
In Wisconsin the offense is OWI, and the limit is 0.08.
Driving in Wisconsin is consent to a breath or blood test when an officer has cause to suspect OWI; the license case that follows a refusal or a failed test is run by the Division of Motor Vehicles, separately from the criminal case.
Wisconsin sets no time limit on prior offenses: every earlier conviction counts toward a repeat charge.
Who Makes OWI Arrests in Muskego
The Waukesha County Sheriff's Office and the agency that reports for Muskego (filed by the FBI as Muskego Police Department) make the OWI arrests in and around Muskego.
Together, the 16 agencies in Waukesha County with all twelve months of 2025 on file reported 8,658 arrests to the FBI that year, all offenses together; the FBI's count for Waukesha County does not break OWI out.
Booking After an OWI Arrest in Muskego
A driver arrested for OWI and kept in custody goes to the county jail, whichever agency made the arrest. The jail, run by the Waukesha County Sheriff's Office, held about 470 people on an average day in 2025 by the Vera Institute of Justice's count and has a custody page SearchSystems verified at waukeshacounty.gov/sheriff/jail-division/current-inmate-list. The Muskego inmate search guide covers the jail in full.
The Court Case
An OWI charge from Muskego is brought by the District Attorney in the Waukesha County Circuit Court.
The District Attorney's page SearchSystems verified is at waukeshacounty.gov/district-attorney, phone 262-548-7076.
The court records page SearchSystems verified for the county is at waukeshacounty.gov/circuit-courts/information-pages/court-record-in....
Statewide, Wisconsin Circuit Court Access is the free statewide case search of every circuit court.
The License Case
An OWI arrest starts two cases: the criminal one above and an administrative one over the license, run by the Division of Motor Vehicles. The driving record, kept by the Wisconsin Division of Motor Vehicles, carries the result of both.
The Records an OWI Leaves
- The arrest report: from the agency that made the arrest, under the Wisconsin Public Records Law.
- The court file: from the Waukesha County Circuit Court, kept by the Clerk of Circuit Court.
- The driving record: from the Wisconsin Division of Motor Vehicles.
More on each: Muskego arrest records and Muskego court records.
Frequently Asked Questions
What is the OWI limit in Wisconsin?
0.08 percent blood alcohol.
Where is an OWI case from Muskego heard?
In the Waukesha County Circuit Court, brought by the District Attorney. The court records page SearchSystems verified for the county is at waukeshacounty.gov.
Where is a person arrested for OWI in Muskego held?
At the county jail, run by the Waukesha County Sheriff's Office, if kept in custody.
Who handles the license after an OWI arrest in Wisconsin?
The Division of Motor Vehicles, in an administrative case separate from the court case.
How long does an OWI count as a prior in Wisconsin?
There is no time limit; every prior conviction counts.
Is this the official Muskego 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.