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  • Hall of Justice overlooking the Cowlitz River looking West from Kelso - Photo by Cody White

    Hall of Justice overlooking the Cowlitz River - Photo by Cody White

  • Kalama Courthouse - 1876-1923 - www.courthousehistory.com

    Kalama Courthouse - 1876-1923 - www.courthousehistory.com

  • Kelso Courthouse - built 1923 - www.courthousehistory.com

  • Kelso Courthouse - 1939 Addition - www.courthousehistory.com

    Kelso Courthouse - 1939 Addition - www.courthousehistory.com

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There is construction going on around the Courthouse through mid-October which is affecting traffic and parking. The courthouse is getting a new roof, and a new water main is being laid along First Avenue. A large section of our south parking lot is blocked off and sections of the street will be blocked intermittently. Thanks for your patience!


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The Superior Court for Cowlitz County, Washington is a state trial court of general jurisdiction. We are located in Kelso, Cowlitz County, Washington State

Map of Cowlitz CountyThis court has state-wide jurisdiction and hears: 

• Serious criminal matters (felonies)

• Civil cases including cases involving real property

• Domestic relations (family law) matters

• Appeals from lower courts (District and Municipal Courts)

• Appeals from state administrative agencies

• Superior Court also has jurisdiction in adoption, probate and competency cases.  

Juvenile Court is a department of Superior Court and hears juvenile offender matters, truancy, at risk youth (BECCA) and child dependency cases. Juvenile Court also operates juvenile detention facility. 

There are four full-time elected Judges who hear all matters and numerous Superior Court Commissioners who hears family law, dependency, domestic violence, various civil and juvenile cases.


Our Mission

To uphold the constitution and laws of Washington and the United States;

To provide an impartial, safe, and accessible forum

for the fair, open, and expeditious resolution of legal matters; and

To provide expanded and responsive services

to better meet the needs of court users and the community.

Our goal is to make this site as informative, interesting and educational as possible. It is a work in progress with content being added and updated regularly. You will find links to our local rules and policies, as well as forms specific to our courts. We will also be providing some of the history of our court and our county.

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TELEPHONE: 360 577-3085
FAX (360) 414-5506
TTY (800) 883-6388 OR 7115

KELSO, WA 98626
Building Hours - 8:00 AM - 5:00 PM
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