Chaffey 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

Finals Schedule

Please see the attachment for our upcoming finals schedule.

Upcoming Events

Board Meeting

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

School Facts

  • 55% of Chaffey High School graduates meet the University of California and California State University A-G admissions requirements, making it a leader in San Bernardino County.
  • 85% of freshmen at Chaffey 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.
  • 700 Advanced Placement exams are administered to students at Chaffey High School annually.

Principal's Message

Christina Martinez
Dear Parents and Students, 
 
Welcome to Chaffey High School, home of the Tigers, for the 2025-26 school year. I hope you are having an amazing summer!  
 
We look forward to welcoming our incoming 9th graders, the class of 2029, and all students on Wednesday, August 6th. Expect to see students from band, ASB, Cheer, Link Crew, and more out in the quad as we kick off the school year and welcome our Tigers to Chaffey High. 
 
Please look for your summer mailer through the US postal service to arrive no later than July 28. Please read all the documents enclosed, and make sure that all the forms in the registration  packet are completed and bring them to turn in on registration/schedule pick up day. Students  will begin to report the last week of July 21st for Schedule Pick-Up and Advisement. See the schedule below for exact times, dates, and locations.  
 
For parents of our 9th graders, we invite you to attend our Parent Orientation Meeting. This presentation will cover the high school experience and focus on how to help your student become academically successful in high school and beyond.  
 
Finally, we have established three “golden rules” that are the foundation of how we interact with each other. Tigers are: 
 
Respectful—treat people the way you would like to be treated 
Responsible—follow school rules 
Ready to Learn—be on time, in the appropriate place on campus, and with the required materials 
 
We believe that these “golden rules” will help students be successful in school, career, and life in general. 
 
Once again, I look forward to seeing all of you on August 6th as we begin the new school year.  As always, please feel free to contact me with your questions or concerns and enjoy the rest of  your summer.  
 
GO TIGERS! 
 
Christina Martinez 
Principal
 
 
 
2025-26 Schedule Pick-Up/Advisement 
 
Seniors (Class of 2026)  
Monday, July 21st 9:00am – 1:00pm 
 
Juniors (Class of 2027) 
Tuesday, July 22nd 9:00am – 1:00pm 
 
Sophomores (Class of 2028) 
Wednesday, July 23rd 9:00am – 1:00pm 
 
9th Grade Orientation 
9th Grade Orientation will begin outside of the South Gym at 8am. Orientation will end at 12:00pm. 9th Grade Orientation will be organized into two groups:  
 
A – L Thursday, July 24th 8:00am – 12:00pm 
M – Z Friday, July 25th 8:00am – 12:00pm 
 
*ID and yearbook pictures will be taken during orientation. * 
 
Following is some information to let you what you and your student can expect at the Link Crew 9th Grade
 
Orientation: 
     • During orientation, 9th graders will learn about school expectations, receive a tour of the campus, take their               school ID and yearbook photo, and receive their class schedule  
     • Students should wear comfortable shoes and clothing 
     • Students should leave backpacks and purses at home 
     • Bring a water bottle  
     • Park in the 4th Street Parking lot 
     • Meet outside of South Gym at 8:00am 
 
Parents/guardians, there will be a special parent/guardian orientation just for you beginning at 8:15 AM at another location on campus.