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. Every office link was opened and checked against the office's own site between September 24, 2026 and October 4, 2026.
Washington County, Oregon, has about 611,000 residents (2024 Census Bureau estimate). Its court cases are filed in the Washington County Circuit Court, and the file of each case, kept by the trial court administrator, is the public record of it. This guide says which court hears what, where to look a case up and who keeps the files.
This guide covers the courts, the records page, criminal cases, kinds of files, cities and common questions.
Related guides: Washington County public records, Washington County arrest records, Washington County warrants, Washington County inmate search, Washington County criminal records, Oregon arrest records and Oregon inmate search.
The Courts That Hear Cases from Washington County
Court cases from Washington County are filed in the Washington County Circuit Court, which hears every civil, criminal, family, probate and juvenile case.
A city with a municipal and justice court of its own tries the tickets written under its ordinances.
Divorces go to the Circuit Court, and the file stays with the trial court administrator.
The trial court administrator keeps the files, and a copy of anything in a file comes from that office, under the court's own rules rather than the Oregon Public Records Law.
Looking Up a Case from Washington County
For Washington County, SearchSystems opened and checked the court records page for the county at courts.oregon.gov/courts/washington/records/pages/default.aspx (page title: Oregon Judicial Department : Court Records | Home : Court Records : State of Oregon), 150 N 1st Avenue, Rm. 110J Hillsboro, OR 97124, which answered when SearchSystems opened it on September 24, 2026.
Statewide, Oregon eCourt Case Information is the Oregon Judicial Department's online case search, free for basic case information.
The Oregon court page SearchSystems verified is at courts.oregon.gov/how/pages/find.aspx.
What Reaches the Court from Washington County
Together, the 12 agencies in Washington County with all twelve months of 2025 on file reported 18,060 arrests to the FBI that year; the District Attorney decides which of those arrests become cases in the Washington County Circuit Court.
The District Attorney's page SearchSystems verified is at washingtoncountyor.gov/locations/justice-services-building/district... (page title: District Attorney's Office | Washington County, OR), Monday: 8:00 am - 5:00 pm, which answered when SearchSystems opened it on September 24, 2026.
The Kinds of Court Files
Criminal cases, divorces, traffic tickets and evictions all end up as files of these courts, and the file is what the public sees of each.
The other Washington County guides take the kinds of file one at a time: Washington County criminal records, Washington County divorce records, Washington County traffic tickets, Washington County DUI and Washington County property records.
Cities in Washington County
Wherever in the county a case arises, it is filed in the Washington County Circuit Court; tickets under a city's own ordinances go to its municipal and justice court where it has one.
SearchSystems has a guide to the offices of these cities in Washington County, with the 2024 Census Bureau population; a city with its own court records guide opens there:
Frequently Asked Questions
How do I look up a court case in Washington County?
The court records page SearchSystems verified for the county is at courts.oregon.gov. Statewide, Oregon eCourt Case Information is the Oregon Judicial Department's online case search, free for basic case information.
Which court hears felonies in Washington County?
The Washington County Circuit Court, which hears every civil, criminal, family, probate and juvenile case.
Who keeps the court records in Washington County?
The trial court administrator. Copies come from that office under the court's own rules.
Is there a statewide court case search in Oregon?
Yes: Oregon eCourt Case Information, the Oregon Judicial Department's online case search, free for basic case information.
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.