Cowlitz County Dept. of Tourism
Cowlitz County is home to approximately 101,996 residents, roughly 56 percent of whom live in the incorporated cities of Castle Rock, Kelso, Longview, Kalama, and Woodland. The remaining 44 percent live in rural, unincorporated communities such as Ryderwood, Toutle, Yale, Silver Lake, Lexington, Ariel and Cougar. The county covers 1,144 square miles within the southwestern region of Washington. Once known as the “Timber Capital of the World,” Cowlitz County is home to Douglas fir, hemlock and western cedar trees that cover much of its rugged terrain.