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 4, 2026.
Washington County, Idaho, has about 12,000 residents (2024 Census Bureau estimate). A DUI arrest in Washington 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: Washington County public records, Washington County arrest records, Washington County warrants, Washington County inmate search, Washington County criminal records, Idaho arrest records and Idaho inmate search.
The DUI Law in Idaho
In Idaho the offense is DUI, and the limit is 0.08.
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 Washington County
The Washington County Sheriff's Office and the agency that reports for Weiser make the DUI arrests in Washington County.
Together, the two agencies in Washington County with all twelve months of 2025 on file reported 318 arrests to the FBI that year, all offenses together; the FBI's count for Washington County does not break DUI out.
Booking After a DUI Arrest in Washington 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 Washington County Sheriff's Office, held about 39 people on an average day in 2021 by the Vera Institute of Justice's count and has a jail page SearchSystems verified at co.washington.id.us/255/County-Jail, phone 208-414-2124. The Washington County inmate search guide covers the jail in full.
The Court Case
A DUI charge from Washington County is brought by the Prosecuting Attorney in the Magistrate Division.
The Prosecuting Attorney's page SearchSystems verified is at co.washington.id.us/217/Prosecuting-Attorney, phone 208-414-2034.
The court records page SearchSystems verified for the county is at co.washington.id.us/157/District-Court, phone (208) 414-2092.
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: Washington County arrest records, Washington County police reports and Washington County court records.
Frequently Asked Questions
What is the DUI limit in Idaho?
0.08 percent blood alcohol.
Where is a DUI case from Washington County heard?
In the Magistrate Division, brought by the Prosecuting Attorney. The court records page SearchSystems verified for the county is at co.washington.id.us/157/District-Court.
Where is a person arrested for DUI in Washington County held?
At the county jail, run by the Washington 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 Washington 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.