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

Recent News

Mascot Update

Please see the attached document for information on the upcoming mascot update.

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 Back to the Spring Semester! 

It’s hard to believe we are already kicking off the second semester! As we transition back into our school routines, I want to remind students and parents/guardians that now is the perfect time to plan for a successful Spring 2025 semester. 
 
Students should focus on completing assignments, staying organized, and preparing thoroughly for tests. I encourage everyone to put in their best effort over the coming months and strive to reach their full potential! 
     
To support student success, here are a few helpful resources and tips: 

     - Tutoring Center: Available Monday through Thursday, 3:20 to 4:20 p.m., for after-school support. 
     - ParentSquare: Use this platform to communicate with teachers regarding your student’s progress and any                 concerns. 
     - Teacher Guidance: Discuss specific steps your student can take to improve with their teachers. 
     - Additional Support: Encourage your student to take advantage of extra help sessions offered before or after                school. 

We also wish our winter athletes and performers the best of luck in their current season of games and performances.

Stay focused, stay strong, and continue striving for excellence both on and off the field. 

Upcoming School Holidays 

Please note that school will not be in session on the following dates: 

January 20th: Martin Luther King Jr. Day 
February 10th: Lincoln’s Day 
February 17th: Presidents Day 
 
On behalf of the Alta Loma High School staff, I wish you a Happy New Year and a fantastic second semester. Let’s make it a great one! 
 
Sincerely, 
 
Principal Kaylor