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.
Polk County, Oregon, has about 91,000 residents (2024 Census Bureau estimate). A DUII arrest in Polk County starts two cases, a criminal case in the Polk 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: Polk County public records, Polk County arrest records, Polk County warrants, Polk County inmate search, Polk County criminal records, Oregon arrest records and Oregon inmate search.
The DUII Law in Oregon
Drunk driving is charged as DUII in Oregon, at a blood alcohol level of 0.08 or more.
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 Polk County
The Polk County Sheriff's Office and the agencies that report for Dallas, Monmouth and Independence make the DUII arrests in Polk County.
The FBI's agency list also places these agencies in Polk County: the Polk County Liquor Commission (state agency); the Polk County State Police (state police); the Polk County State Police makes the arrests on the state highways.
Together, the four agencies in Polk County with all twelve months of 2025 on file reported 1,118 arrests to the FBI that year, all offenses together; the FBI's count for Polk County does not break DUII out.
The Salem Police Department is listed by the FBI across two counties including Polk County, so its arrests are not broken out for Polk County here.
Booking After a DUII Arrest in Polk 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 Polk County Sheriff's Office, held about 120 people on an average day in 2023 by the Vera Institute of Justice's count and has a jail page SearchSystems verified at polkcountyor.gov/210/Sheriffs-Office, phone 503-623-9251. The Polk County inmate search guide covers the jail in full.
The Court Case
A DUII charge from Polk County is brought by the District Attorney in the Polk County Circuit Court.
The court records page SearchSystems verified for the county is at courts.oregon.gov/courts/polk/records/pages/default.aspx.
Statewide, Oregon eCourt Case Information is the Oregon Judicial Department's online case search, free for basic case information.
The License Case
The court case is only half the record. The DMV runs a separate administrative case over the license, which can suspend it before the criminal case is decided, and the Oregon Driver and Motor Vehicle Services keeps the driving record the conviction goes on.
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 Polk County Circuit Court, kept by the trial court administrator.
- The driving record: from the Oregon Driver and Motor Vehicle Services.
More on each: Polk County arrest records, Polk County police reports and Polk County court records.
Frequently Asked Questions
What is the DUII limit in Oregon?
0.08 percent blood alcohol.
Where is a DUII case from Polk County heard?
In the Polk 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 Polk County held?
At the county jail, run by the Polk 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 Polk 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.