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 23, 2026 and September 30, 2026.
Snohomish County, Washington, has about 864,000 residents (2024 Census Bureau estimate). Its court cases are filed in the Snohomish County Superior Court and the District Court, and the file of each case, kept by the County Clerk, 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: Snohomish County public records, Snohomish County arrest records, Snohomish County warrants, Snohomish County inmate search, Snohomish County criminal records, Washington arrest records and Washington inmate search.
The Courts That Hear Cases from Snohomish County
In Snohomish County, the Snohomish County Superior Court hears felonies, civil cases over $100,000, divorces, probate and juvenile matters.
Below it, the District Court takes misdemeanors, traffic infractions, small claims and civil cases up to $100,000.
A city with a municipal court of its own tries the tickets written under its ordinances.
Divorces go to the Superior Court, and the file stays with the County Clerk.
The County Clerk keeps the files, and a copy of anything in a file comes from that office, under the court's own rules rather than the Public Records Act (RCW 42.56).
Looking Up a Case from Snohomish County
For Snohomish County, SearchSystems opened and checked the court records page for the county at snohomishcountywa.gov/5508/Access-Court-Records (page title: Court Records | Snohomish County, WA), phone 425-388-3466, which answered when SearchSystems opened it on September 23, 2026.
Statewide, Washington Courts Search Case Records is the Administrative Office of the Courts' free statewide case search.
The Washington court page SearchSystems verified is at courts.wa.gov/index.cfm.
What Reaches the Court from Snohomish County
Together, the 16 agencies in Snohomish County with all twelve months of 2025 on file reported 17,726 arrests to the FBI that year; the Prosecuting Attorney decides which of those arrests become cases in the Snohomish County Superior Court or the District Court.
The Prosecuting Attorney's page SearchSystems verified is at snohomishcountywa.gov/202/Prosecutor (page title: Prosecutor | Snohomish County, WA), phone 425-388-3333, Monday - Friday 9:00AM - 4:00PM, 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 Snohomish County guides take the kinds of file one at a time: Snohomish County criminal records, Snohomish County divorce records, Snohomish County traffic tickets, Snohomish County DUI and Snohomish County property records.
Cities in Snohomish County
Wherever in the county a case arises, it is filed in the Snohomish County Superior Court or the District Court; tickets under a city's own ordinances go to its municipal court where it has one.
SearchSystems has a guide to the offices of these cities in Snohomish County, with the 2024 Census Bureau population; a city with its own court records guide opens there:
- Marysville (76,209)
- Edmonds (42,871)
- Lynnwood (41,597)
- Lake Stevens (41,350)
- Arlington (21,959)
- Mukilteo (21,299)
- Mill Creek (20,993)
- Monroe (19,927)
- Sultan (7,002)
Frequently Asked Questions
How do I look up a court case in Snohomish County?
The court records page SearchSystems verified for the county is at snohomishcountywa.gov, phone 425-388-3466. Statewide, Washington Courts Search Case Records is the Administrative Office of the Courts' free statewide case search.
Which court hears felonies in Snohomish County?
The Snohomish County Superior Court, which hears felonies, civil cases over $100,000, divorces, probate and juvenile matters. The District Court takes misdemeanors, traffic infractions, small claims and civil cases up to $100,000.
Who keeps the court records in Snohomish County?
The County Clerk. Copies come from that office under the court's own rules.
Is there a statewide court case search in Washington?
Yes: Washington Courts Search Case Records, the Administrative Office of the Courts' free statewide case search.
Is this the official Snohomish 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.