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 September 30, 2026.
Multnomah County, Oregon, has about 796,000 residents (2024 Census Bureau estimate). A DUII arrest in Multnomah County starts two cases, a criminal case in the Multnomah County Circuit Court and a license case before the DMV, 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: Multnomah County public records, Multnomah County arrest records, Multnomah County warrants, Multnomah County inmate search, Multnomah County criminal records, Oregon arrest records and Oregon inmate search.
The DUII Law in Oregon
In Oregon the offense is DUII, and the limit is 0.08.
Driving in Oregon is consent to a breath or blood test when an officer has cause to suspect DUII; the license case that follows a refusal or a failed test is run by the DMV, separately from the criminal case.
Who Makes DUII Arrests in Multnomah County
The Multnomah County Sheriff's Office and the agencies that report for Portland and Gresham make the DUII arrests in Multnomah County.
The FBI's agency list also places one state police unit, two other agencies, one state agency and one campus police department in Multnomah County (the arrest records guide names each one); the Multnomah County State Police makes the arrests on the state highways.
Together, the three agencies in Multnomah County with all twelve months of 2025 on file reported 18,407 arrests to the FBI that year, all offenses together; the FBI's count for Multnomah County does not break DUII out.
The Lake Oswego Police Department is listed by the FBI across three counties including Multnomah County, so its arrests are not broken out for Multnomah County here.
Booking After a DUII Arrest in Multnomah County
A driver arrested for DUII and kept in custody goes to the county jail, whichever agency made the arrest. The jail, run by the Multnomah County Sheriff's Office, held about 930 people on an average day in 2024 by the Vera Institute of Justice's count and has a jail page SearchSystems verified at mcso.us. The Multnomah County inmate search guide covers the jail in full.
The Court Case
The District Attorney files the charge, and the case is heard in the Multnomah County Circuit Court.
The District Attorney's page SearchSystems verified is at multco.us.
The court records page SearchSystems verified for the county is at courts.oregon.gov/courts/multnomah/records/pages/default.aspx, phone 971-274-0570.
Statewide, Oregon eCourt Case Information is the Oregon Judicial Department's online case search, free for basic case information.
The License Case
A DUII arrest starts two cases: the criminal one above and an administrative one over the license, run by the DMV. The driving record, kept by the Oregon Driver and Motor Vehicle Services, carries the result of both.
The Records a DUII Leaves
- The arrest report: from the agency that made the arrest, under the Oregon Public Records Law.
- The court file: from the Multnomah County Circuit Court, kept by the trial court administrator.
- The driving record: from the Oregon Driver and Motor Vehicle Services.
More on each: Multnomah County arrest records, Multnomah County police reports and Multnomah County court records.
Frequently Asked Questions
What is the DUII limit in Oregon?
0.08 percent blood alcohol.
Where is a DUII case from Multnomah County heard?
In the Multnomah County Circuit Court, brought by the District Attorney. The court records page SearchSystems verified for the county is at courts.oregon.gov.
Where is a person arrested for DUII in Multnomah County held?
At the county jail, run by the Multnomah County Sheriff's Office, if kept in custody.
Who handles the license after a DUII arrest in Oregon?
The DMV, in an administrative case separate from the court case.
Is this the official Multnomah 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.