Chaffey Joint Union High School District Home

Superintendent's Message

Mat Holton
As we embark upon the fourth and final quarter of the school year, I am delighted to witness the unwavering dedication our students continue to display in their pursuit of learning. It is inspiring to see excellence not only in academics but also in athletics and the arts. I am thrilled to share some remarkable achievements: six of our schools secured positions in the top ten in the annual Academic Decathlon competition, several athletic teams have been victorious in CIF and State championships, two schools were recognized as Distinguished Schools by the California Department of Education, and our drama, dance, choir, and band programs are flourishing. My sincere appreciation goes out to our exceptionally talented students and staff for their outstanding contributions!
The progress we have achieved thus far fills me with pride, and I eagerly anticipate the promising developments that the remainder of the school year holds.
Our dedicated teachers have been working diligently to prepare students for the upcoming California Assessment of Student Performance and Progress (CAASPP)/California Science Test (CAST), as well as the Advanced Placement (AP) exams. The CAASPP is a pivotal assessment for all juniors, evaluating proficiency in Math and English, while the CAST is designed for all seniors, measuring their success in science. Both tests play a crucial role in gauging the overall success of our schools. I strongly encourage our juniors and seniors to attend each testing day, giving their best effort to display their college readiness. The CAASPP/CAST and AP testing schedules are posted on each school’s website.
To our students, I urge you to remain steadfast in your studies and strive for your personal best as you conclude this academic school year. Parents and guardians, please continue to monitor your student’s progress through Canvas, and feel free to reach out to teachers, counselors, administrators, or my office if you require any support. We are committed to doing everything possible to assist students in achieving their goals.
Lastly, please note that there will be no school in session during the week of March 25-29. I hope everyone enjoys a safe and rejuvenating spring break.
Thank you for your ongoing dedication and support.
Mathew Holton, Ed.D.
All CJUHSD students will graduate ready for college and careers.

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The Chaffey District Cares

The Chaffey District cares about your mental well-being. We partner with community agencies and mental health professionals to provide support to our students and staff. If you, or someone you know, is in crisis please contact the Community Crisis Response Team (909) 421-9233 - Click 'Read Full Story' for more information.

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District Facts

  • 60% of CJUHSD graduates meet the University of California and California State University A-G admissions requirements, making it a leader in San Bernardino County.
  • 90% of freshmen in the CJUHSD complete their first year of high school on track to graduate.
  • The CJUHSD has been named a Top Workplace by the Press-Enterprise and Inland News Group.
  • 9000 Advanced Placement exams are administered to students in the CJUHSD annually.

About Us

The Chaffey Joint Union High School District serves the communities of Ontario, Montclair, Rancho Cucamonga, and portions of Fontana, Upland, Chino, and Mount Baldy. With approximately 24,000 students, the District is the second largest high school district in California. It has eight comprehensive high schools, a continuation high school, an online high school, a community day school, an adult school, and alternative programs. The District offers a wide variety of instructional options that provide a quality education for each student, every day. The District's well-prepared, dedicated, and highly qualified teachers and support personnel are second to none.
The Chaffey Joint Union High School District Board of Trustees are steadfast in the belief that, "all students in the Chaffey Joint Union High School District will graduate ready for college and careers."
To support this effort, the District provides college and career readiness endeavors that include career interest assessments and programs, access to Baldy View Regional Occupation Programs (ROP), college and career fairs and other events, and curriculum that develops employability, life, and learning skills. Our daily purpose encompasses our commitment to provide student learning, and ultimately their achievement, of the prescribed curriculum that takes place in the classroom under the direction of the teacher. The Chaffey District supports this daily act. We realize that our efforts uniquely influence the future of our community and of this nation, and we are passionate about doing whatever it takes to prepare students to be successful and contributing citizens of the 21st century.
The Chaffey District has provided a quality education for high school students in the area since 1911. As the District continues to grow and progress, we are poised to meet the challenge of providing the finest quality education possible for every student. 
School Campus at Sunset