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Oldest Private Schools in Colorado

The average private school in Colorado was founded around 1979 (2025).

The oldest private school in Colorado is St. Mary's Academy, founded in 1864.

Ave Maria Catholic School Photo - Ave Maria Campus including field, school and gym

Graland Country Day School Photo - Graland makes learning fun! With hands-on activities that challenge students to innovate, collaborate, and persevere, Graland goes to great lengths to ensure learning is a joyful, curiosity-driven adventure.

Dawson School Photo - Dawson School sits on a beautiful 107-acre campus, serving families from Boulder, Longmont, Broomfield, Erie, Lafayette, Louisville, and the surrounding area

Fusion Academy Denver - Greenwood Village Photo - Classes at Fusion are one-to-one: one student and one teacher per classroom. Students have different teachers for different subjects, and teachers act as mentors in the one-to-one setting.

Aspen Academy Photo - What happens when 7th and 8th graders are given a chance to own and operate small businesses on campus? Aspen Academy Middle schoolers learn how to operate, market and finance fully functioning businesses on campus as part of our one-of-a-kind LiFE (Leadership, Finance and Entrepreneurship) curriculum. Students learn to lifelong skills from financial acumen to collaboration.

Colorado Academy Photo - Every day on campus, CA's lives the mission to create curious, kind, courageous, and adventurous learners and leaders. Our dedicated teachers offer an innovative and rigorous curriculum rooted in the liberal arts and sciences. We do it with innovation and creativity and by encouraging students to think outside the box. We want students to ask "why?" and "why not?".

Front Range Christian School Photo - FRCS is a discipleship school. The goal is to grow the roots deeper for students to know who Christ is and who He created them to be. All students, grades K-12, participate in weekly chapel services.

Springs Adventist Academy Photo - Street view from Palmer Park Blvd.

St. Elizabeth's School Photo - Middle School classroom

Boulder Country Day Photo - BCD is a proudly independent institution serving students 2 years old - 8th grade. In partnership with our outstanding faculty and committed families, we uphold the highest standard for our educational experience. Through small class sizes and innovative engagement in a supportive environment, students at BCD learn to explore their strengths and apply them to the world.

Montessori Academy of Colorado Photo - MAC`s Elementary School offers an unparalleled opportunity for children to thrive by combining a progressive Montessori pedagogy, a dynamic experiential program, strong academics, social-emotional support, and a robust enrichment program. The MAC Elementary experience empowers students to reach their own personal potential and develop the confidence and capabilities to positively impact their world.

St. Mary's Academy Photo - St. Mary's Academy High School excels at preparing young women for leadership in a global society. Our goal is to empower our students through the development of analytical skills, confidence, and generosity to make a difference in the world around them.

St. Columba School Photo - St. Columba School, where students are known, respected, and cared for by faculty, staff, and peers; where exploring ideas and loving learning are cool; where happiness and challenge walk hand-in-hand; where leadership and extracurricular opportunities abound; and where the presence of the Catholic tradition stamps a profound and lasting influence on the educational experience of our young scholars.

St. Mary's High School Photo - Mens' Athletics

Early Connections Day Nursery Photo - Early Connections Day Nursery

Year Founded Range: 1864 1921 Avg. Year Founded: 1902

Frequently Asked Questions

What is the Colorado average private schools founding year?

The Colorado average private schools founding year is 1979 for 2025.

What are the private schools with oldest founding year in Colorado?

The top ranked private schools in Colorado include St. Mary's Academy, Regis Jesuit High School and St. Columba School.

What is private high school and private elementary school with the oldest founding year in Colorado?

The private high school with the oldest founding year in Colorado is St. Mary's Academy, with a year of 1864. The private elementary school with the oldest founding year is St. Mary's Academy, with a year of 1864.

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