High Schools in Mason County, Washington There are 6 High Schools in Mason County, Washington http://schooltree.org/ Sun, 06 Jul 2008 02:26:30 +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/Mason-County-Schools.xml Choice High School http://washington.schooltree.org/public/Choice-High-093476.html 9th Grade to 12th Grade :: 182 Students :: Shelton School District 309 SchoolTree.org Mary M Knight School 12 http://washington.schooltree.org/public/Mary-M-Knight-School-12-092748.html 7th Grade to 12th Grade :: 102 Students :: Mary M Knight School District 311 SchoolTree.org Mason County Detention Center http://washington.schooltree.org/public/Mason-County-Detention-Center-093479.html 7th Grade to 12th Grade :: 10 Students :: Shelton School District 309 SchoolTree.org North Mason Options High School http://washington.schooltree.org/public/North-Mason-Options-High-092955.html 9th Grade to 12th Grade :: 66 Students :: North Mason School District 403 SchoolTree.org North Mason Senior High School http://washington.schooltree.org/public/North-Mason-Senior-High-092952.html 9th Grade to 12th Grade :: 783 Students :: North Mason School District 403 SchoolTree.org Shelton High School http://washington.schooltree.org/public/Shelton-High-093475.html 8th Grade to 12th Grade :: 1536 Students :: Shelton School District 309 SchoolTree.org