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.

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
With just a few weeks of school before first semester finals, it is important that students continue to work diligently to finish the semester successfully. Progress grade reports have been mailed home, and it is imperative that all students and parents use that information to monitor progress in each class. Also, please continue to monitor Canvas and communicate with teachers and counselors if you have any concerns.
I encourage students to take advantage of our tutoring center, open Monday – Thursday, after school until 4:30 PM in the library, along with the many tutoring opportunities our teachers provide. Our library is open from 4pm-8pm on Tuesday nights for students to study and work. Parents, please continue to help students by reviewing their progress each day and by ensuring their homework is complete. Also, please help by making sure your student is attending each class, every day. We are happy to assist students and parents in their endeavors to improve, achieve, and finish the first semester strong.
Finals will be held Tuesday, Wednesday, and Thursday, December 20th-22nd, (these are minimum days). All students should begin preparing for finals each night by reviewing the content they have learned. Friday, December 23rd, is a non-student day.
Tuesday, December 20th Wednesday, December 21st Thursday, December 22nd
Period 0 - 7:20-8:23 Period 0 - 7:20-8:23 Period 0 - 7:20-8:23
Period 1 - 8:30-10:30 Period 2 - 8:30-10:30 Period 4 - 8:30-10:30
Break - 10:30-10:43 Break - 10:30-10:43 Break - 10:30-10:43
Period 5 - 10:50-12:50 Period 6 - 10:50-12:50 Period 7 - 10:50-12:50
Finally, I would like to extend well-wishes to our entire Alta Loma community during this holiday season. Please enjoy the winter break, and we look forward to seeing students return on Monday, January 9, 2023.
Thankful to be a brave,
Jason T. Kaylor
Principal, Alta Loma High School