Middle Schools in Jefferson County, New York There are 6 Middle Schools in Jefferson County, New York http://schooltree.org/ Sat, 20 Mar 2010 17:35:33 +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://new-york.schooltree.org/middle/Jefferson-County-Schools.xml Carthage Middle School http://new-york.schooltree.org/public/Carthage-Middle-058419.html 6th Grade to 8th Grade :: 684 Students :: Carthage Central School District (CSD) SchoolTree.org Case Middle School http://new-york.schooltree.org/public/Case-Middle-062457.html 7th Grade to 8th Grade :: 639 Students :: Watertown City School District (SD) SchoolTree.org Harold T. Wiley School http://new-york.schooltree.org/public/Harold-T-Wiley-062458.html 4th Grade to 6th Grade :: 977 Students :: Watertown City School District (SD) SchoolTree.org Indian River Interm School http://new-york.schooltree.org/public/Indian-River-Interm-059240.html 4th Grade to 5th Grade :: 584 Students :: Indian River Central School District (CSD) SchoolTree.org Indian River Middle School http://new-york.schooltree.org/public/Indian-River-Middle-059238.html 6th Grade to 8th Grade :: 785 Students :: Indian River Central School District (CSD) SchoolTree.org Thousand Islands Middle School http://new-york.schooltree.org/public/Thousand-Islands-Middle-058516.html 6th Grade to 8th Grade :: 319 Students :: Thousand Islands Central School District (CSD) SchoolTree.org