County Resource
Rock County Criminal Defense Attorney
Charged in Rock County? Attorney Glenn E. Avena defends OWI, drug, misdemeanor and felony cases in Janesville, with straight answers from the first call.
Defense in Rock County
What a Rock County case actually needs
Rock County criminal cases are heard at the Rock County Courthouse, 51 South Main Street, Janesville, WI 53545. The Clerk of Circuit Court answers at 608-743-2200 (Monday to Friday, 7:30 am to 4:30 pm). The county has 7 circuit court branches. Main routes through the county include I-39/90, I-43, US-14 and WI-11. Clerk of Circuit Court page.
The Rock County District Attorney's office prosecutes the criminal and OWI cases filed in the county. Phone: 608-757-5615. Official page.
Rock County Jail, 200 East US Highway 14, Janesville, WI 53545. Phone: 608-757-8000.
Janesville has no municipal court, so ordinance cases there go to the circuit court clerk, and the county’s veterans treatment court also takes cases from several neighboring counties.
Municipal courts, which hear ordinance cases including a first-offense OWI: Beloit (608-364-6613), Edgerton (608-884-3341), Evansville (608-490-0544), Milton (608-868-6910), Clinton (608-346-3202) and Footville (608-876-6005).
Local programs: a drug treatment court, an OWI treatment court and a veterans treatment court. Each sets its own eligibility. The District Attorney’s office also runs a post-charge diversion program.
Campuses: Beloit College, Blackhawk Technical College and UW-Whitewater at Rock County. Campus conduct proceedings run separately from any court case.
Court details checked against official sources on October 8, 2026. Confirm hours and rooms with the clerk.
What Glenn Handles Here
Charges defended in Rock County
Common Questions
Rock County questions
Where are criminal cases heard in Rock County?
At the Rock County Courthouse in Janesville (51 South Main Street, Janesville, WI 53545). The Clerk of Circuit Court at 608-743-2200 can confirm hearing dates.
Does Glenn Avena really come to Rock County from Madison?
Yes. The courthouse in Janesville is about 39 miles and 50 minutes by road from the Madison office.
Where is the Rock County jail?
Rock County Jail, 200 East US Highway 14, Janesville, WI 53545. Phone: 608-757-8000. Call first: visiting and bail rules are set by the jail.
Does Rock County have an OWI court or a drug court?
It has a drug treatment court, an OWI treatment court and a veterans treatment court. Ask a lawyer early whether a particular charge and record could qualify.
Does a city in Rock County have its own municipal court?
Municipal courts operate in Beloit (608-364-6613), Edgerton (608-884-3341), Evansville (608-490-0544), Milton (608-868-6910), Clinton (608-346-3202) and Footville (608-876-6005). Elsewhere, ordinance cases go to circuit court.
How fast should I act after an arrest in Rock 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 Rock 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.
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