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 24, 2026 and October 9, 2026.
Twin Falls County, Idaho, has about 97,000 residents (2024 Census Bureau estimate). A DUI arrest in Twin Falls 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: Twin Falls County public records, Twin Falls County arrest records, Twin Falls County warrants, Twin Falls County inmate search, Twin Falls 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 Twin Falls County
The Twin Falls County Sheriff's Office and the agencies that report for Twin Falls, Kimberly, Buhl and Filer make the DUI arrests in Twin Falls County.
Together, the five agencies in Twin Falls County with all twelve months of 2025 on file reported 2,287 arrests to the FBI that year, all offenses together; the FBI's count for Twin Falls County does not break DUI out.
Booking After a DUI Arrest in Twin Falls 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 Twin Falls County Sheriff's Office, held about 300 people on an average day in 2019 by the Vera Institute of Justice's count and has a custody page SearchSystems verified at roster.assurances.gov.gh/twin-falls-jail-roster-recent-bookings.html. The Twin Falls County inmate search guide covers the jail in full.
The Court Case
A DUI charge from Twin Falls County is brought by the Prosecuting Attorney in the Magistrate Division.
The Prosecuting Attorney's page SearchSystems verified is at twinfallscounty.org/prosecuting_attorney, phone 208-736-4020.
The court records page SearchSystems verified for the county is at twinfallscounty.org/clerk/courts.
Statewide, iCourt Portal is the Idaho courts' free statewide case search.
The License Case
A DUI arrest starts two cases: the criminal one above and an administrative one over the license, run by the Idaho Transportation Department. The driving record, kept by the Idaho Transportation Department Division of Motor Vehicles, carries the result of both.
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: Twin Falls County arrest records, Twin Falls County police reports and Twin Falls County court records.
Frequently Asked Questions
What is the DUI limit in Idaho?
0.08 percent blood alcohol.
Where is a DUI case from Twin Falls County heard?
In the Magistrate Division, brought by the Prosecuting Attorney. The court records page SearchSystems verified for the county is at twinfallscounty.org/clerk/courts.
Where is a person arrested for DUI in Twin Falls County held?
At the county jail, run by the Twin Falls 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 Twin Falls 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.