High Schools in Grant County, Nebraska There is 1 High School in Grant County, Nebraska http://schooltree.org/ Wed, 15 Oct 2008 18:23:15 +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://nebraska.schooltree.org/high/Grant-County-Schools.xml Hyannis High School http://nebraska.schooltree.org/public/Hyannis-High-052933.html 7th Grade to 12th Grade :: 103 Students :: Hyannis High School SchoolTree.org