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Welcome to CEC Castle Rock High School!

CEC Castle Rock High School (CECCR) is a public charter school that welcomes all students in the Douglas County area, offering enrollment to homeschool and non-public school students.

Our nurturing CECCR campus offers a personal and supportive environment where students can explore and pursue their own unique educational and career pathways. We assess every student who enrolls to meet them where they are academically, regardless of their level, and provide them with the opportunity to begin working on college-level courses as soon as they are ready.

Our campus culture is caring, inclusive, and focused on creating confident, lifelong learners!

  • Smaller Class Sizes with Passionate, Enthusiastic and Highly-Qualified Teachers
  • STEM and Liberal Arts Focused Curriculum
  • Exceptional Pathways Towards College Degrees and Other Industry Credentials
  • Services Provided for Students with IEP, 504, ALP, and ELL plans
  • FREE Tutoring for ALL Students
  • Healthy Breakfast and Lunches available each day
  • FREE Bus Transportation (Locations Based On Student Need)
  • On-Campus & Online Enrollment Options for Homeschoolers
Already Enrolled & Looking For School Information? Go to the Families & Students Page!

Maren Blind – Head of School

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Rip Engler – Admissions

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720.439.4300 - Main

720.439.4300 - Fax

3565 Celestial Ave, Castle Rock, CO 80109

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News from Our Schools

CEC Fort Collins High School graduation students photographed from the back. The students are wearing blue caps and gowns.

Colorado Early Colleges Schools Climb in National Rankings

Colorado Early Colleges (CEC) is proud to announce that multiple campuses have once again been recognized among the best high schools in Colorado and
Meet our leadership thumbnail image with CEC Fort Collins and Aaron Prestwich in the background.

Meet Our Leadership: Dr. Aaron Prestwich, Executive Director of Educational Services

CEC is proud to welcome our new Executive Director of Educational Services, Dr. Aaron Prestwich to the CEC team! In this role, Aaron will
CEC Governing Board

CEC Governing Board Meeting – August 21, 2025

The CEC Governing Board meeting is Thursday, August 21, 2025 at 3:30 p.m. and will be held virtually via Microsoft Teams.
Introducing Dr. Aaron Prestwich, Executive Director of Educational Services. Colorado Early Colleges. Blue banner image.

Introducing Dr. Aaron Prestwich, CEC Executive Director of Educational Services

Please join us in welcoming Dr. Aaron Prestwich as our Executive Director of Educational Services (EDES).
CEC Colorado Early Colleges Castle Rock school as seen from the entrance.

CEC Castle Rock awarded John Irwin School of Excellence

This award is given to schools that demonstrate exceptional academic achievement over time. These schools received an “exceeds expectations” rating on the Academic Achievement
Smiling young woman with curly hair taking notes while studying online in a cozy home environment.

CEC Online Campus awarded John Irwin School of Excellence

This award is given to schools that demonstrate exceptional academic achievement over time. These schools received an “exceeds expectations” rating on the Academic Achievement

RSVP for One of Our Informational Meetings

Want to learn more to make sure CEC Castle Rock is right for your family? Attend one of our school tours & informational meetings! We will cover all of the unique learning options available at CECCR and have you see the school for yourself. You will also get to meet staff, learn about our culture, and ask any questions you may have! RSVP below!

Unable to attend an in-person informational meeting? Click here to watch an overview video.

View Calendar

Food & Transportation Services

Close-up image of a CEC Student eating his lunch.
Food Services

CEC Food Services is committed to providing healthy breakfast and lunches for free to our campus students to support their academic success.

Close-up image of a man in a plaid shirt driving a bus.
Transportation

CEC Transportation Services operates buses with multiple routes and stops along the Front Range in support of our campus locations, and is committed to providing our students and families with this option wherever possible.

CEC Network Success Stats

average resident cost to earn an associate degree in Colorado
$ 0 K
students have graduated with an associate degree or higher
0
other industry credentials earned by our students
0
total college credits earned by our students
0 K+
saved in tuition, fees, and books for our students and families
$ 0 M+

Student Life at CEC Castle Rock

Female student in a beige fleece coat standing inside a well lit school.
Three students holding signs in hallway. The signs read, "I love my school. National school choice week."
Teacher standing at a whiteboard with students raising their hands to ask questions.
Female student in a grey camo shirt standing in a hallway with her hands on her hips.
Four students standing in front of the school talking in a group.
Two students in a cafeteria working on homework at a table.
Four students standing outside in front of a tree and a building.
A CEC teacher holding a sign that says, "Great Teachers Inspire! National School Choice Week."

Our Accredited College Partners

Aims community College Logo
ACC Arapahoe Community College Logo
Colorado State university Pueblo
Community College of Aurora
Community College of Denver
Front Range Community College
MSU Denver logo
Pickens Technical College logo
Pikes Peak State College
Red Rock Community College
UCCS
University of Colorado Denver Logo

Our Beliefs

Bottom up image of a group of students with their hands in the middle stacked on top of each other.
CEC recognizes the responsibility we have been entrusted with to deliver a positive and lifelong impact on our students and their families, both academically and in life — and to deliver it with equity and fairness in the Colorado communities we have the privilege to serve. We have created a belief system to guide us in building strong campus communities filled with passion, driven by excellence, and dedicated to diversity, equity, and inclusion.
Read Our Beliefs