High Schools in Allen County, Kansas There are 3 High Schools in Allen County, Kansas http://schooltree.org/ Fri, 27 Nov 2009 05:22:20 +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://kansas.schooltree.org/high/Allen-County-Schools.xml Humboldt High School http://kansas.schooltree.org/public/Humboldt-High-033189.html 9th Grade to 12th Grade :: 211 Students :: Humboldt SchoolTree.org Iola Senior High School http://kansas.schooltree.org/public/Iola-Senior-High-033217.html 9th Grade to 12th Grade :: 492 Students :: Iola SchoolTree.org Marmaton Valley High School http://kansas.schooltree.org/public/Marmaton-Valley-High-033492.html 7th Grade to 12th Grade :: 204 Students :: Marmaton Valley SchoolTree.org