Chaffey Joint Union High School District Home

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 at sunset
All CJUHSD students will graduate ready for college and careers.

Recent News

Canvas Logo


CJUHSD has adopted Canvas as our new Learning Management System

Upcoming Events

District Facts

  • 60% of CJHUSD 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.

Superintendent's Message

Dr. Mat Holton
Chaffey District parents and families… welcome back to the 2021-22 school year!
Please know we are ready and eager to welcome back students, staff, and families on Monday, August 9th, as all schools in the Chaffey District will reopen, in-person, in compliance with State and County health orders.
We realize that parents and students may have numerous questions about safety expectations, academic and extra-curricular programs, technology, additional academic and mental health support, and much more, and we further realize that this correspondence cannot address all questions; however, please know we are committed to providing you with frequent communication over time to ensure that your student has a safe and successful experience.
For this to occur, our schools will follow K-12 requirements and health orders from the California Department of Public Health and our local County guidance. At this time, State and local agencies require universal mask-wearing while indoors when school starts. That is, all students and staff will be required to wear masks when indoors, regardless of vaccination status, although it is not mandated that masks be worn outside. It has been communicated to us that this universal mask requirement minimizes the need for other layers of precaution, like physical distancing, daily screening, or installing protective barriers on student desks. The District will continue to disinfect and promote hand-washing as a means to avoid infection.
We expect safety protocols will continue to be reexamined and evolve over time depending on the COVID-19 data reported by health agencies. More detailed and specific reopening safety protocols are published on our website in the District’s School Reopening and Safety Plan. Additionally, our District will proactively continue to collaborate with local health and governmental agencies to ensure students and families in our communities have access to vaccinations.
We realize students may return with a variety of academic, social, and mental health challenges still confronting them. Some of their academic setbacks were resolved during our extensive summer school programs; however, moving forward, the District's comprehensive plan will provide students and families with an array of programs to support students, which include expanded learning opportunities, daily tutoring and ongoing access to PAPER, SEL staffing and support, additional mental health resources, mentors, and access to technology. As students return, the District will continue to distribute a Chromebook device to every student, provide support with connectivity when available, and continue to use the Canvas learning platform to support teaching and learning.
Our survey data shows that 98% of our students have chosen to return to in-person instruction, and we are ready to accommodate them safely and effectively. However, we recognize that some students may need access to alternative and virtual programs to serve their needs. If you would like information on our Chaffey District Online High School, Independent Study Program, or other alternative educational options, please contact your school’s counselor or administrator.
Finally, I want to thank you for your patience and support as we navigated the difficulties presented by the COVID-19 global pandemic. While conditions have improved, and we can return to school safely, the pandemic is not over. As a community, we must commit to all safety protocols and be ready to adjust accordingly as the situation or recommendations demand. The pandemic tested our District and our community, and our hearts go out to our staff and our families who suffered from illness, economic hardship, and loss.
Your school’s principal and I will continue to communicate with you in the coming days through automated calls, email, social media, and our District website. We are here to answer your questions and address your concerns. Until then, we will continue to look forward to the 2021-22 school year!
Thank you!
Mathew Holton, Ed.D.
Chaffey Joint Union High School District