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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

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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.
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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.
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Principal's Message

Mr. Mitchell
On the afternoon of March 13, 2020 I made an announcement to our campus that due to the Corona Virus Pandemic we would be closing our doors until further notice.  I never anticipated that as of the date of this writing, (March 9, 2021) our doors would still be closed.  Thank you to all Colony families and Colony staff members for making the best of a tough situation.  We have learned so much during the last 12 months.  As it pertains to education, I am proud of what we have accomplished.  It hasn’t been perfect, and we have all had to adjust but we should be proud of the progress we have made. 

As we strive to reopen our doors to the Hybrid Model of instruction, I am excited for what lies ahead.  I understand the anxiousness, but strongly feel we are ready to begin the process of getting back to school.  Our District has continued to gather input from our stakeholders, health agencies, San Bernardino County Superintendent of Schools, and our Board of Trustees to ensure proper planning is guiding our return.  As we begin and progress through the Hybrid Learning Model, we will continue to examine our plan and revise as necessary.  

There is no question that COVID-19 has affected all of us in one way or another.  The hardships that have come our way have been devasting, yet we continue to persevere.  For Colony High School, as we close out this school year, my goal is to provide you with the best possible educational experience.  I have a special place in my heart for the class of 2021 and hope for opportunity to plan meaningful end of year activities-stay tuned.  For the class of 2022, 2023, and 2024 I want to get us started in the right direction as we plan for the fall of 2021.  

Moving forward, we will plan based on guidelines set fourth by the local and state officials and our District. Please know that we look forward to reuniting our students with their high school community.  We have done much in the area of Distance Learning, and we look forward to the progression of learning in the Hybrid Learning Model.   Let’s make the 4th quarter the best it can be. 

Love you all, 

Mr. Mitchell 
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