County Resource
Jefferson County Criminal Defense Attorney
Charged in Jefferson County? Attorney Glenn E. Avena defends OWI, drug, misdemeanor and felony cases in Jefferson, with straight answers from the first call.
Defense in Jefferson County
What a Jefferson County case actually needs
Jefferson County criminal cases are heard at the Jefferson County Courthouse, 311 S. Center Avenue, Jefferson, WI 53549. The Clerk of Circuit Court answers at 920-674-7150 (Monday to Friday, 8:00 am to 4:30 pm). The county has 4 circuit court branches. Main routes through the county include I-94, US-18 and WI-26. Clerk of Circuit Court page.
The Jefferson County District Attorney's office prosecutes the criminal and OWI cases filed in the county. Phone: 920-674-7220. Official page.
Jefferson County Jail, 411 S. Center Avenue, Jefferson, WI 53549. Phone: 920-674-8620.
Watertown sits on the Jefferson and Dodge county line, so the county where a stop happened, not the town named on the citation, controls the court and the prosecutor.
Municipal courts, which hear ordinance cases including a first-offense OWI: Watertown (920-206-4203), Fort Atkinson (920-397-9904), Jefferson (920-674-0444) and Lake Mills.
Local programs: an OWI treatment court and a drug treatment court. Each sets its own eligibility.
Court details checked against official sources on October 8, 2026. Confirm hours and rooms with the clerk.
What Glenn Handles Here
Charges defended in Jefferson County
Common Questions
Jefferson County questions
Where are criminal cases heard in Jefferson County?
At the Jefferson County Courthouse in Jefferson (311 S. Center Avenue, Jefferson, WI 53549). The Clerk of Circuit Court at 920-674-7150 can confirm hearing dates.
Does Glenn Avena really come to Jefferson County from Madison?
Yes. The courthouse in Jefferson is about 32 miles and 45 minutes by road from the Madison office.
Where is the Jefferson County jail?
Jefferson County Jail, 411 S. Center Avenue, Jefferson, WI 53549. Phone: 920-674-8620. Call first: visiting and bail rules are set by the jail.
Does Jefferson County have an OWI court or a drug court?
It has an OWI treatment court and a drug treatment court. Ask a lawyer early whether a particular charge and record could qualify.
Does a city in Jefferson County have its own municipal court?
Municipal courts operate in Watertown (920-206-4203), Fort Atkinson (920-397-9904), Jefferson (920-674-0444) and Lake Mills. Elsewhere, ordinance cases go to circuit court.
How fast should I act after an arrest in Jefferson County?
Immediately. A request for a refusal hearing has to reach the court within 10 days (Wis. Stat. s. 343.305(9)(a)4., (10)(a)), and a test-result suspension has its own review deadline. Bring every paper from the arrest to the first call.
Local Defense, Local Courts
Your case is heard here, by people who work here
Avena Law Office, LLC runs a Madison criminal defense practice from one office and appears in the courthouses of Dane, Columbia, and the surrounding South-Central Wisconsin counties. Knowing the courtroom, the prosecutors, and how a county actually handles a charge is not a detail. It changes what can be negotiated.
Free Consultation
Talk to Glenn about your Jefferson County case
Tell him what happened, in your own words. You will get a straight answer about where the case stands and what can be done next, at no cost and in confidence.
Request a Free Consultation
Complete the form and Avena Law Office, LLC will review your request.