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Best Colorado Private High Schools Belonging to National Association of Independent Schools (NAIS) (2025-26)

For the 2025-26 school year, there are 19 private high schools belonging to National Association of Independent Schools (NAIS) serving 8,415 students in Colorado. You can also find more schools membership associations in Colorado.

The private high schools belonging to National Association of Independent Schools (NAIS) in Colorado include Colorado Academy, Fountain Valley School of Colorado, and Kent Denver School.

The average tuition cost is $33,242, which is higher than the Colorado private high school average tuition cost of $16,544.

26% of private high schools belonging to National Association of Independent Schools (NAIS) in Colorado are religiously affiliated (most commonly Catholic and Christian).

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

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?".

Valor Christian High School Photo - Football stadium

Tara Performing Arts High School Photo - Tara Performing Arts High School Campus

Fountain Valley School of Colorado Photo - Fountain Valley dorms can accommodate two to three occupants, and each house includes a communal kitchen and common space, fireplace, and patio.

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.

High Mountain Institute Photo - The Barnes Building, where all the campus fun is centered

Temple Grandin School Photo - TGS Learning Community 2018

The Colorado Springs School Photo - CSS graduates are prepared to succeed in college and in life. The Class of 2023 earned $3.7 million in Merit Scholarships and Awards, with 100% matriculating to colleges throughout the nation and around the world.

Telluride Mountain School Photo - Telluride Mountain School is an innovative learning community where strong academics, enriching experiences, and meaningful relationships develop confident, curious students who passionately contribute to the world.

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

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