William S. Hart Union High School District Home

Exterior of the William S. Hart Union High School District administrative center with text that reads Click here to learn more about the Hart District
Brightly colored talavera tile pattern with a blue box with yellow and orange text that reads: Hispanic Heritage Month September 15 - October 15, 2023
A red background with a white cloud shape that reads, "How Will You Hear From Us? Click Here."
Be Present logo with a photo of students on campus
Red White and Blue waving stripes with text that reads: High School Voter Education Weeks September 18-29, 2023 registertovote.ca.gov
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ONE HART

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

Purpose

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

News

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Calendar

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At A Glance

Photo collage arranged in triangular lattice. Top, left to right: Junior High band students pose with instruments, art students drawing and painting in classroom, students throwing caps at graduation, students posing with physics experiment, student welding in CTE class. Center, the words Hart District in dark red on a white background. Bottom, left to right: High School cheerleaders and students on first day of school, robotics student working on project, group of students posing with trophies, students sitting in a circle, high school football team during a game.
  • 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