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

Drive for Excellence - New Car Giveaway!

This school year seniors from Ontario HS, Colony HS, Etiwanda HS, & Alta Loma HS will be eligible to participate in the Drive for Excellence New Car Giveaway.
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

Mr. Kaylor
Dear ALHS Students and Parents
Welcome to Alta Loma High School, home of the Braves, for the 2022-23 school year! I hope you had a wonderful summer and are ready to kick off another great school year!  I am humbled and honored to be the Principal at Alta Loma High School. Our staff looks forward to this upcoming year filled with great learning and memories to be made.
Alta Loma High School has been the premier high school in the Inland Empire for over 58 years. Throughout this time, Alta Loma has enjoyed much success in academics, athletics, arts and activities. Understanding our vision, all students will graduate ready for college and careers, drives our staff to continually focus on providing effective classroom instruction and increasing student achievement. With extensive Advanced Placement and Honors courses, along with our Academy program, our students will be challenged and prepared for the future of college and careers.  As a result of our efforts, US News and World Report has named us one of Americas Best Schools, once again!
Parents and Guardians, you play an equally important role in the success of both your student and our school. We encourage you to emphasize the importance of student learning and daily attendance with your child, communicate often with our teachers who are here to support all of our Braves and regularly monitor grades and academic progress through Canvas.  
I am extremely excited for the 2022-23 school year and we look forward to seeing our Braves back on Wednesday, August 10th for the first day of school. 
Some important fall semester upcoming dates are:
First Day of School - Wednesday, August 10, 2022
Labor Day Holiday – Monday, September 5, 2022
Holiday – Monday, October 10, 2022
I look forward to the upcoming year as we embark on this journey together in preparing Alta Loma High School students for the future. If you have any questions or concerns, please don’t hesitate to contact the school.
Again, welcome to Alta Loma High School and GO BRAVES!
Jason T. Kaylor