COHS Schedule Distribution

Schedule Pick-Up July 27 - July 29

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Colony 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

Parent Academy College Workshops Featured Photo

Parent Academy College Workshops

This workshop will inform parents of the different types of financial aid programs available for paying for a college education to ensure that tuition, books, housing and educational expenses do not become an obstacle in preventing your child from attending college. Come be informed on how to access “FREE” financial aid from the government and learn about the FAFSA application process, Federal Grants, State Cal Grants, the student work-study program and student and parent loans.

Upcoming Events

School Facts

  • 65% of Colony 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 Colony 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.
  • 900 Advanced Placement exams are administered to students at Colony High School annually.

Principal's Message

Tom Mitchell
Colony Titans,
Welcome to the 2021-2022 school year!  It was a pleasure having students back on campus during Hybrid Learning as well as Summer School, but I cannot wait to welcome back all our students to in-person instruction this fall, especially our incoming 9th graders, the Class of 2025! We know that we have many students who will be coming to campus for the first time, and we cannot wait for them to experience what it means to be a Titan.  
Please look for your summer mailer through the US postal service to arrive around the middle of July.  I encourage you to read all the documents enclosed, and make sure that all the forms in the registration packet are completed and ready to be turned in during our summer registration days (Posted on Website). For parents/guardians of incoming freshmen, I invite you to attend our Parent Information Meeting in our auditorium which will take place on the same day and time as your freshmen student orientation.  Topics of discussion will include but is not limited to importance of student engagement and how you can support our vision. 
As we look forward to a more normal educational model this year, I cannot impress how critical your role as a parent/guardian is.  Your engagement with Colony High School helps foster the relationship needed to support student achievement.  I encourage you to get involved with ELAC, AAPAC, School Site Council, or other stakeholder groups.  For more information on where you can get involved, please contact the school, and ask for Dr. Tiffany Bunn, Assistant Principal of Student Achievement.   
Our community has endured and overcome some very difficult situations over the last 16 months.  A return to a normal school year looks inviting, yet I understand there is much work needed to return properly.  Besides a continued focus on safety for all, Colony is planning for a robust level of academic support for all students.  This will include continued efforts in the work of equity to support our diverse school community, academic interventions, academic enrichment, as well as social and emotional support for our students and staff. 
Beginning this school year, the hours for all schools in the Chaffey Joint Union High School District will shift to 8:30 a.m. - 3:20 p.m. Friday hours (staff development) will be from 9:30 a.m. - 3:20 p.m. This shift to a later start time is to prepare for the legally mandated late start for all California high schools.
If there is anything you may need or questions that need to be answered, please feel free to reach out to me or another Titan support person.
Love you all,
Thomas O. Mitchell
Principal, Colony High School