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

Board Meeting

Time: 5 PM – 8 PM
Location: Montclair High School

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

Portrait of Principal Jerome Rucker
Lions,

Welcome to the 2025–2026 school year! It is with immense pride and enthusiasm that I introduce myself as the new Principal of Alta Loma High School. I’m thrilled to join this vibrant community and to lead us into an exciting year filled with opportunity, growth, and purpose.

This year, we proudly embrace the theme "Run Towards the Roar." This powerful message challenges us all—students, staff, and families alike—to face challenges head-on, push through uncertainty, and courageously chase our dreams. At Alta Loma, we are not just walking toward our goals, we are running towards them, together!

We are especially excited to welcome our inaugural freshman class of Lions—the Class of 2029! This is a truly historic year for our campus. Freshmen, we are dedicated to making your first year of high school supportive, safe, engaging, and academically enriched. You are the foundation of a new legacy, and we can’t wait to see all that you will accomplish.

Key Dates and Information:

Schedule Pick-Up: July 21st through July 23rd Be sure to look for your summer mailer in the mail by July 16. It contains important documents and forms that need to be completed and brought with you on your scheduled pick-up day. Freshman families, we invite you to attend our Lion Parent Meeting on the same day as your student’s schedule, pick-up—a chance to learn how to best support your student’s academic journey.

First Day of School: August 6th We’re kicking off the year with a Welcome Back Rally—a high-energy celebration to set the tone for the amazing year ahead!

Back to School Night: August 11th at 5:45 PM This will be a wonderful opportunity for families to meet our educators and see how we are making the Alta Loma experience enriching and inclusive.

We’re proud to be newly rebranded, but our heart remains the same—Alta Loma High School is still a place where "All Students Belong." I encourage every family to stay engaged this year. Your partnership is vital to our students’ success, and we invite you to contact Dr. Adam Stites, AP of Achievement, for parent involvement opportunities.
 
Please also take note of our updated school hours:
 
• Monday–Thursday: 8:30 AM – 3:20 PM
• Friday: 9:30 AM – 3:20 PM

If transportation is needed, be sure to complete the transportation application available on our website.
 
Let’s dream and grow together.
 
Run Towards the Roar!
 
Dr. J.R. Rucker Principal, Alta Loma High School