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 September 28, 2026.
Mount Vernon, Ohio, in Knox County, has about 17,000 residents (2024 Census Bureau estimate). An OVI arrest in Mount Vernon starts two cases, a criminal case in a Municipal or County Court and a license case before the Bureau 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: Mount Vernon public records, Knox County OVI, Mount Vernon arrest records, Mount Vernon warrants, Mount Vernon inmate search, Mount Vernon criminal records, Ohio arrest records and Ohio inmate search.
The OVI Law in Ohio
In Ohio the offense is OVI, and the limit is 0.08.
Driving in Ohio is consent to a breath or blood test when an officer has cause to suspect OVI; the license case that follows a refusal or a failed test is run by the Bureau of Motor Vehicles, separately from the criminal case.
For charging and sentencing, Ohio counts prior offenses within 10 years.
Who Makes OVI Arrests in Mount Vernon
The Knox County Sheriff's Office and the agency that reports for Mount Vernon (filed by the FBI as Mount Vernon Police Department) make the OVI arrests in and around Mount Vernon.
Together, the three agencies in Knox County with all twelve months of 2024 on file reported 290 arrests to the FBI that year, all offenses together; the FBI's count for Knox County does not break OVI out.
The Utica Police Department is listed by the FBI across two counties including Knox County, so its arrests are not broken out for Knox County here.
Booking After an OVI Arrest in Mount Vernon
A driver arrested for OVI and kept in custody goes to the county jail, whichever agency made the arrest. The jail, run by the Knox County Sheriff's Office, held about 87 people on an average day in 2023 by the Vera Institute of Justice's count and has a jail page SearchSystems verified at knoxsheriff.org, phone 888-868-4631. The Mount Vernon inmate search guide covers the jail in full.
The Court Case
The case is heard in a Municipal or County Court, brought by the Prosecuting Attorney or, in a municipal court, by the city's own prosecutor.
The Prosecuting Attorney's page SearchSystems verified is at co.knox.oh.us/prosecutor/civil-representation, phone 740-393-6720.
The court records page SearchSystems verified for the county is at clerkofcourts.co.knox.oh.us/eservices/home.page.3.
Ohio has no single public index of every trial court case; each court's records are looked up through that court.
The License Case
The court case is only half the record. The Bureau of Motor Vehicles runs a separate administrative case over the license, which can suspend it before the criminal case is decided, and the Ohio Bureau of Motor Vehicles keeps the driving record the conviction goes on.
The Records an OVI Leaves
- The arrest report: from the agency that made the arrest, under the Ohio Public Records Act.
- The court file: from a Municipal or County Court, kept by the Clerk of Courts.
- The driving record: from the Ohio Bureau of Motor Vehicles.
More on each: Mount Vernon arrest records and Mount Vernon court records.
Frequently Asked Questions
What is the OVI limit in Ohio?
0.08 percent blood alcohol.
Where is an OVI case from Mount Vernon heard?
In a Municipal or County Court. The court records page SearchSystems verified for the county is at clerkofcourts.co.knox.oh.us.
Where is a person arrested for OVI in Mount Vernon held?
At the county jail, run by the Knox County Sheriff's Office, if kept in custody.
Who handles the license after an OVI arrest in Ohio?
The Bureau of Motor Vehicles, in an administrative case separate from the court case.
How long does an OVI count as a prior in Ohio?
10 years.
Is this the official Mount Vernon 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.