scenic picture from Washington state
Research ToolsCounty Profiles › Cowlitz County

Cowlitz County

County Administration Building
207 4th Ave N
Kelso , WA 98626

Phone: (360) 577-3020
Fax: (509) 423-9987
Web Site:

Population*: 103,300
Established: 1854

County Officials (WACO)
County Officials (WSAC)
County Code

Economic and Demographic Information

Also see:
Court Directory: County-City Reference List
Washington State Legislative Directory

For Official Use Only
Update County Profile Information

* Population data updated each July with the April 1 estimates from the Washington State Office of Financial Management.

Need more information?

Feel free to Ask MRSC. Washington cities, counties, and our contract partners can call or email MRSC for more information and advice - free of charge.