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: 12 PM – 2 PM
Location: Los Osos 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
Alta Loma Lions we are almost at the finish line! Parents, we thank you for all of your efforts and we ask that you please encourage our Lions to finish strong. We have just a few weeks of school before finals and we need our students to finish the semester successfully.  
 
It is extremely important that students and parents monitor academic progress in all classes using Canvas and Parent Square. Parents and students can communicate with teachers and counselors if you have any concerns. This is especially crucial for senior students as graduation is right around the corner, and we want to see all our seniors at our commencement ceremonies in Alta Loma’s Uhalley Stadium on Thursday, May 21st.   Please see the comprehensive Commencement Guide on our website for more graduation details: www.alhs.cjuhsd.net. 
 
Parents can continue to help their students by reviewing their students’ progress each day and by ensuring that homework is complete.  Please help by making sure your student is attending every class, every day.  In addition, if your student is taking online classes needed for graduation and/or college admissions know that all content must be completed by May 15th, 2026.
 
Finals Week is May 19th – May 21st
 
     ·         Tuesday          May 19th   - Periods 4 & 5
     ·         Wednesday     May 20th   - Periods 2 & 6
     ·         Thursday         May 21st   - Periods 1 & 7
     ·         NO SCHOOL FRIDAY
 
*Students in a 0 period, see 0 period teacher for finals information.
 
This year we will offer Summer School from: May 27th-June 25th. Summer Registration has started and parents should contact their student’s counselor if they have questions. 
 
Alta Loma community and family this school year has moved so fast and has been filled with so many great moments. Thank you for the trust and support that you have given to make this year special.   
 
RUN TOWARDS THE ROAR! 
 
Dr. J.R. Rucker
Principal