Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest and crime 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). In Oregon the public criminal record is the court file, kept by the trial court administrator; the statewide criminal history kept by the Oregon State Police is open to anyone who asks. This guide says where each record of a criminal case from Washington County is kept and how it is seen.
This guide covers the court file, the statewide record, local arrest records, the crimes behind the records, the prosecutor, sex offender registry, records requests and common questions.
Related guides: Washington County public records, Washington County arrest records, Washington County warrants, Washington County inmate search, Washington County court records, Oregon arrest records and Oregon inmate search.
Criminal Cases in the Washington County Circuit Court
In Oregon the public criminal record is the court file. Criminal cases from Washington County are heard by the Washington County Circuit Court, which hears every civil, criminal, family, probate and juvenile case, and the file of each case is kept by the trial court administrator.
The court records page SearchSystems verified for the county is 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 Criminal History and Your Own Copy
Oregon is one of the states that lets anyone look up another person's statewide criminal history: an Open Record Request returns anyone's Oregon conviction record by name, and the subject is told who asked, for $10 a search, through the Oregon State Police. The result is the repository record, what agencies reported to the state, which is wider than one county's court index but can lag it. The search is on the Oregon State Police site.
Arrest Records Kept Locally in Washington County
The Washington County Sheriff's Office and the agencies that report for Hillsboro, Beaverton, Tigard, Tualatin, Forest Grove, Sherwood and five more cities keep the arrest records in Washington County: the report and the booking record of each arrest stay with the agency that made it, separate from the court file and from the state repository.
The FBI's agency list also places these agencies in Washington County: the Washington County Liquor Commission (state agency); the Hillsboro School District (other agency); the Washington County State Police (state police); each keeps the records of its own arrests.
The Portland Police Department and the Lake Oswego Police Department are each listed by the FBI across several counties including Washington County, so their arrests are not broken out for Washington County here.
Together, the 12 agencies in Washington County with all twelve months of 2025 on file reported 18,060 arrests to the FBI that year; how each case ended is in the court file, not in the arresting agency's.
The agencies and their counts, year by year, are in Washington County arrest records.
The Crimes Behind the Records: Washington County in 2025
The 12 agencies in Washington County with all twelve months of 2025 on file reported 1,453 violent and 10,365 property crimes to the FBI that year; the same agencies with both 2025 and 2024 complete reported 11,818 crimes in 2025 against 13,107 in 2024. Each reported crime is a report on file with the agency that took it, and each arrest that follows is the start of a criminal record.
The full crime section, agency by agency, is on the Washington County public records guide.
The District Attorney for Washington County
The District Attorney decides which arrests in Washington County become charges and files them in the Washington County Circuit Court; the office answers questions about pending prosecutions, and the case files themselves are court records.
The office'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 Sex Offender Registry for Washington County
Registered sex offenders living in Washington County are listed on the Oregon Sex Offender Registry, run by the Oregon State Police. Only Level 3 and some Level 2 registrants are listed online.
Registration itself is done in person with the local agency where the registrant lives: the sheriff's office, or the city police in a city with its own department.
Asking an Agency in Washington County for a Record
An arrest report, a booking record or a local criminal history letter comes from the agency that holds it, not from the court.
Under the Oregon Public Records Law a county office must answer a request within 15 business days where practicable, after acknowledging the request within 5, and it may charge the actual cost of making the record available.
Frequently Asked Questions
Are criminal records public in Washington County?
The court files of criminal cases are public, and so is the statewide criminal history kept by the Oregon State Police: an Open Record Request returns anyone's Oregon conviction record by name, and the subject is told who asked, for $10. The arrest report itself is released by the agency that made the arrest, under the Oregon Public Records Law.
Can I search Washington County criminal cases online?
The court records page SearchSystems verified for the county is at courts.oregon.gov (page title: Oregon Judicial Department : Court Records | Home : Court Records : State of Oregon). Statewide, Oregon eCourt Case Information is the Oregon Judicial Department's online case search, free for basic case information.
How do I get my own Oregon criminal history?
Through the same open record request, run on yourself.
Who prosecutes crimes in Washington County?
The District Attorney, which files its cases in the Washington County Circuit Court.
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.