William S. Hart Union High School District Home


The William S. Hart Union High School District serves approximately 21,000 students on 18 campuses throughout the Santa Clarita Valley with ONE HART.
One HART Every Student Opportunity Ready Community, Caring, Courage, Creativity


Our fundamental purpose is to ensure EVERY STUDENT is OPPORTUNITY READY when they graduate from the Hart District.


Casey Cuny, California Teacher of the Year

Casey Cuny Named State Teacher of the Year

Valencia HS English teacher Casey Cuny has been named one of five California Teachers of the Year by State Superintendent Tony Thurmond. In addition, Mr. Cuny was selected to represent California in the National Teacher of the Year competition.
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At A Glance

  • CA Exemplary District
  • 11 CA Distinguished/ National Blue Ribbon Schools
  • 26 Career Technical Education Pathways in 13 Industry Sectors
  • 96.7% Graduation Rate
  • Wellness Centers on Every Campus