DeKalb High School: 9th-12th grades. DeKalb ISD.DeKalb Independent School District: K-12th grades. Includes a list of campuses, curriculum, news, and a calendar of events. [Optimized for Internet Explorer]DeKalb Middle School: 6-8th Grades. Located in DeKalb, Texas. DeKalb ISD.Hubbard Independent School District: Links for administration, faculty, staff, programs, technology, and school board.