Home > Colorado > Schools By Membership Association

Top 20 Best Colorado Private Schools Belonging to Association of Colorado Independent Schools (ACIS) (2025)

For the 2025 school year, there are 32 private schools belonging to Association of Colorado Independent Schools (ACIS) serving 9,638 students in Colorado. You can also find more schools membership associations in Colorado.

The private schools belonging to Association of Colorado Independent Schools (ACIS) in Colorado include Kent Denver School, Fountain Valley School of Colorado, and Dawson School.

The average tuition cost is $25,975, which is higher than the Colorado private school average tuition cost of $13,805.

16% of private schools belonging to Association of Colorado Independent Schools (ACIS) in Colorado are religiously affiliated (most commonly Catholic and Episcopal).

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

Shining Mountain Waldorf School Photo - Movement

Montessori School Of Denver Photo - Montessori School of Denver's Cinco de Mayo Celebration. MSD Students celebrate with song, dance, and a cultural festival.

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.

Denver Waldorf School Photo - The Denver Waldorf School

Colorado Rocky Mountain School Photo - Colorado Rocky Mountain School Mountain Campus

The Mcclelland School Photo - The McClelland School's 3rd and 4th grade students participate in activities such as a "book tasting", where they are able to review new genres of books that they may not have read before and share them with their classmates.

Fountain Valley School of Colorado Photo - Fountain Valley School offers visual art classes in ceramics, sculpture, painting/drawing, jewelry-making (metal-smithing), photography, and film. The School's three-story Art Barn is dedicated solely to the pursuit of these fields.

Aspen Country Day School Photo - Aspen Country Day School enjoys a beautiful forested campus on Castle Creek. Ponds and mountains provide an ideal natural environment for learning in the outdoors. The entire campus was redone and reopened in 2016 with state-of-the-art classroom buildings that inspire learning and foster creativity.

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.

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.

Telluride Mountain School Photo - Winter programs are designed around snow, winter ecology, avalanche education and include a full-season, on-mountain ski and snowboard Ski P.E. program that accommodates all skill levels, from the recreational skier/snowboarder to the aspiring competitor.

Mackintosh Academy Littleton Photo - Mackintosh Academy - Where Bright Minds Belong!

Denver Jewish Day School Photo - 10th graders in the Negev desert region of Israel on their annual six week Hebrew and Israel immersion experience.

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.

Rivendell School Of Northern Colorado Photo

Recent Articles

March 11, 2025

A Parent's Guide To Understanding High School Teaching Methods

This comprehensive guide helps parents navigate the various teaching methods used in today's high school classrooms. By understanding these approaches, you'll be better equipped to support your teen's learning journey, communicate effectively with teachers, and create a complementary learning environment at home.

February 08, 2025

Social Emotional Learning: Education's Hidden Symphony

A musician's perspective on Social Emotional Learning reveals how this educational framework orchestrates success through five essential emotional competencies.

January 24, 2025

A Roadmap For Starting A Private School

Use this roadmap as a set of talking points with your trusted mentors and professionals to start the private school of your dreams. You're not alone. Over the years, hundreds of folks like you have had the same dream. From Quintilian to Maria Montessori to Lucy Madeira Wing, visionary educators have established schools to teach according to their beliefs and methodologies.