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 30, 2026 and October 9, 2026.
Idaho County, Idaho, has about 18,000 residents (2024 Census Bureau estimate). A DUI arrest in Idaho County starts two cases, a criminal case in the Magistrate Division and a license case before the Idaho Transportation Department, 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: Idaho County public records, Idaho County arrest records, Idaho County warrants, Idaho County inmate search, Idaho County criminal records, Idaho arrest records and Idaho inmate search.
The DUI Law in Idaho
Drunk driving is charged as DUI in Idaho, at a blood alcohol level of 0.08 or more.
Driving in Idaho is consent to a breath or blood test when an officer has cause to suspect DUI; the license case that follows a refusal or a failed test is run by the Idaho Transportation Department, separately from the criminal case.
Who Makes DUI Arrests in Idaho County
The Idaho County Sheriff's Office and the agency that reports for Grangeville make the DUI arrests in Idaho County.
Together, the two agencies in Idaho County with all twelve months of 2024 on file reported 357 arrests to the FBI that year, all offenses together; the FBI's count for Idaho County does not break DUI out.
Booking After a DUI Arrest in Idaho County
A driver arrested for DUI and kept in custody goes to the county jail, whichever agency made the arrest. The jail, run by the Idaho County Sheriff's Office, held about 12 people on an average day in 2019 by the Vera Institute of Justice's count and has a custody page SearchSystems verified at idahocounty.org/planb/sheriffs-office/jail-division/current-inmate-.... The Idaho County inmate search guide covers the jail in full.
The Court Case
A DUI charge from Idaho County is brought by the Prosecuting Attorney in the Magistrate Division.
The Prosecuting Attorney's page SearchSystems verified is at idahocounty.org/prosecutor, phone (208) 983-0166.
The court records page SearchSystems verified for the county is at isc.idaho.gov.
Statewide, iCourt Portal is the Idaho courts' free statewide case search.
The License Case
The court case is only half the record. The Idaho Transportation Department runs a separate administrative case over the license, which can suspend it before the criminal case is decided, and the Idaho Transportation Department Division of Motor Vehicles keeps the driving record the conviction goes on.
The Records a DUI Leaves
- The arrest report: from the agency that made the arrest, under the Idaho Public Records Act.
- The court file: from the Magistrate Division, kept by the Clerk of the District Court.
- The driving record: from the Idaho Transportation Department Division of Motor Vehicles.
More on each: Idaho County arrest records, Idaho County police reports and Idaho County court records.
Frequently Asked Questions
What is the DUI limit in Idaho?
0.08 percent blood alcohol.
Where is a DUI case from Idaho County heard?
In the Magistrate Division, brought by the Prosecuting Attorney. The court records page SearchSystems verified for the county is at isc.idaho.gov.
Where is a person arrested for DUI in Idaho County held?
At the county jail, run by the Idaho County Sheriff's Office, if kept in custody.
Who handles the license after a DUI arrest in Idaho?
The Idaho Transportation Department, in an administrative case separate from the court case.
Is this the official Idaho 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.