Alta Loma High School 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 over 25,000 students, the District is the fourth 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 "Nothing is more important than student learning and their achievement."
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. 
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All CJUHSD students will graduate ready for college and careers.

Recent News

WeTip - Be the solution


Be the Solution. If you have information regarding crime or misconduct at your school, call WeTip anonymously.

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.

Upcoming Events

School Facts

  • 70% of Alta Loma High School 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 at Alta Loma High School 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.
  • 800 Advanced Placement exams are administered to students at Alta Loma High School annually.

Principal's Message

Jason Kaylor
Welcome to the 2024-2025 school year. As we prepare for the upcoming return to campus, I challenge every student to strive for their personal best in all areas of studies. We look forward to welcoming our incoming 9th graders, the Class of 2028. We know that we have many students who will be coming to campus for the first time, and we can’t wait for them to enjoy our beautiful facilities. Expect to see staff and student leaders from Band, ASB, BSA, Cheer, Dance, Link Crew, and more out in front of the school as we kick off the school year and welcome the Braves back on campus.
Please look for your summer mailer through the US postal service to arrive no later than July 16. Please read all the documents enclosed, and make sure that all the forms in the registration packet are completed and bring them to turn in on registration/schedule pick-up day. Students will begin to report the last week of July for Schedule pick up. For parents/guardians of 9th graders, we invite you to attend our Brave Freshmen Parent Orientation. This presentation will take place on the same day as your student’s schedule pick-up and focus on how to help your student become academically successful in high school and beyond.
Parents and guardians, your role in your student’s development is a huge part of their success. Your involvement helps to build a healthy partnership with the school. If you would like to do even more, please reach out to Dr. Adam Stites, AP of Achievement, for parent engagement opportunities throughout the year.
Parents and Guardians should reach out to the Guidance office if they need assistance with creating a Parent Square account. This is the main way our school communicates with parents/guardians.
Please take note of these important upcoming dates:
Wednesday, August 7th First day of school
Monday, August 12th Back to School Night - 5:45pm
Tuesday, August 13th Minimum Day Schedule
As always, please feel free to contact me with any questions and enjoy the rest of your summer.
Go Braves!
Jason T. Kaylor
Principal, Alta Loma High School