Tri Valley High School Real Estate View 10 listings HomeGuidesTri Valley High School Tri Valley High School, home of the Vikings, is part of School District #3 located in Downs, IL. TVHS has a reputation of providing academic excellence, with a wide range of extra cirriculars and athletic programs. To learn more about Tri Valley High School, Click HERE to visit the official homepage. Guides BloomingtonBloomington High SchoolTri Valley High SchoolNormal Community High SchoolNormalNormal Community West High SchoolHeyworthHeyworth High SchoolOlympia High SchoolHudsonLeRoyLexingtonEl Paso