High Schools in Cowlitz County, Washington There are 8 High Schools in Cowlitz County, Washington http://schooltree.org/ Tue, 01 Dec 2009 20:58:36 +0700 FeedCreator 1.7.2 http://schooltree.org/images/schoollogo.gif SchoolTree.org logo http://schooltree.org/ Information provided by SchoolTree.org. Click to visit. http://washington.schooltree.org/high/Cowlitz-County-Schools.xml Castle Rock High School http://washington.schooltree.org/public/Castle-Rock-High-092017.html 9th Grade to 12th Grade :: 443 Students :: Castle Rock School District 401 SchoolTree.org Cornerstone Community Christian School http://washington.schooltree.org/private/Cornerstone-Community-Christian-023760.html 7th Grade to 12th Grade :: 96 Students :: Non-Denominational Christian Private School SchoolTree.org Kelso High School http://washington.schooltree.org/public/Kelso-High-091768.html 9th Grade to 12th Grade :: 1204 Students :: Kelso School District 458 SchoolTree.org Mark Morris High School http://washington.schooltree.org/public/Mark-Morris-High-092710.html 9th Grade to 12th Grade :: 1136 Students :: Longview School District 122 SchoolTree.org R A Long High School http://washington.schooltree.org/public/R-A-Long-High-092714.html 9th Grade to 12th Grade :: 1093 Students :: Longview School District 122 SchoolTree.org Toutle Lake High School http://washington.schooltree.org/public/Toutle-Lake-High-093806.html 7th Grade to 12th Grade :: 305 Students :: Toutle Lake Special Education SchoolTree.org Woodland Alternative School http://washington.schooltree.org/public/Woodland-Alternative-094000.html 9th Grade to 12th Grade :: 40 Students :: Woodland School District 404 SchoolTree.org Woodland High School http://washington.schooltree.org/public/Woodland-High-093996.html 9th Grade to 12th Grade :: 544 Students :: Woodland School District 404 SchoolTree.org