Middle Schools in Nassau County, Florida There are 2 Middle Schools in Nassau County, Florida http://schooltree.org/ Wed, 03 Dec 2008 01:29:42 +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://florida.schooltree.org/middle/Nassau-County-Schools.xml Callahan Middle School http://florida.schooltree.org/public/Callahan-Middle-019916.html 6th Grade to 8th Grade :: 839 Students :: Nassau County School District SchoolTree.org Fernandina Beach Middle School http://florida.schooltree.org/public/Fernandina-Beach-Middle-019909.html 6th Grade to 8th Grade :: 800 Students :: Nassau County School District SchoolTree.org