Local Coverage
Cowlitz County, Washington is served by its own Superior Court. Our local agents are familiar with this court's filing requirements and can execute personal service, substitute service, or skip tracing anywhere in Cowlitz County, returning a sworn proof of service that meets Washington's evidentiary standard.
Service Methods Available
Direct, in-hand delivery of the summons and complaint to the named party at any address within Cowlitz County, the primary and most reliable method of service.
Start personal service in Cowlitz County →Where personal service proves impractical after reasonable attempts, Washington's rules permit substitute service on a qualifying adult at the defendant's residence or place of business within Cowlitz County.
Discuss substitute service eligibility →When a defendant can't be located at a known address, our investigative team conducts a documented search across Cowlitz County to establish a current, serviceable address.
Request a locate investigation →Local Court Directory
Superior Court
312 SW 1st Avenue, Kelso, WA 98626
(360) 357-2077
M-F: 8:00 AM–4:30 PM
Visit court website →Common Questions
Civil matters in Cowlitz County are handled by the Washington Superior Court — see the Local Court Directory above for exact address and contact information.
Yes, our network covers all of Cowlitz County, Washington.
A sworn affidavit of service documenting when, where, and how the documents were delivered, meeting Washington's evidentiary standard.
Talk to our team about service of process in Cowlitz County, Washington.