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.

Top 10 Best Colorado Private High Schools Belonging to Association of Colorado Independent Schools (ACIS) (2025)

For the 2025 school year, there are 13 private high schools belonging to Association of Colorado Independent Schools (ACIS) serving 4,667 students in Colorado. You can also find more schools membership associations in Colorado.
The top ranked private high schools belonging to Association of Colorado Independent Schools (ACIS) in Colorado include Kent Denver School, Dawson School, and Fountain Valley School of Colorado.
The average tuition cost is $31,145, which is higher than the Colorado private high school average tuition cost of $16,075.
15% of private high schools belonging to Association of Colorado Independent Schools (ACIS) in Colorado are religiously affiliated (most commonly Catholic and Jewish).

Top Ranked Private High Schools Belonging to Association of Colorado Independent Schools (ACIS) in Colorado (2025)

School
Location
Grades
Students
Dawson School
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
(13)
10455 Dawson Drive
Lafayette, CO 80026
(303) 665-6679
Grades: K-12
| 515 students
Denver Academy
Denver Academy Photo - Visual Arts
Special Education School
4400 E Iliff Avenue
Denver, CO 80222
(303) 777-5161
Grades: 2-12
| 450 students
Vail Mountain School
Vail Mountain School Photo
(7)
3000 Booth Falls Road
Vail, CO 81657
(970) 476-3850
Grades: K-12
| 418 students
500 Holden Way
Carbondale, CO 81623
(970) 963-2562
Grades: 9-12
| 163 students
The Colorado Springs School
The Colorado Springs School Photo - The Colorado Springs School is PreK-12 college-preparatory day and international school nestled in the heart of Broadmoor.
Alternative School
(1)
21 Broadmoor Ave
Colorado Springs, CO 80906
(719) 434-3500
Grades: PK-12
| 336 students
Crested Butte Academy
(1)
P O Box 1180
Crested Butte, CO 81224
(970) 349-1805
Grades: 8-12
| 61 students
Denver Jewish Day School
Denver Jewish Day School Photo
(Jewish)
(2)
2450 S Wabash St
Denver, CO 80231
(303) 369-0663
Grades: PK-12
| 351 students
Denver Waldorf School
Denver Waldorf School Photo - The Denver Waldorf School
Special Program Emphasis
(6)
2100 S. Pennsylvania St.
Denver, CO 80210
(303) 777-0531
Grades: PK-12
| 377 students
6155 Fountain Valley School Road
Colorado Springs, CO 80911
(719) 391-5251
Grades: 9-12
| 230 students
Kent Denver School
Kent Denver School Photo
4000 East Quincy Avenue
Englewood, CO 80113
(303) 770-7660
Grades: 6-12
| 768 students
St. Mary's Academy
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.
(Catholic)
(6)
4545 South University Boulevard
Englewood, CO 80113
(303) 762-8300
Grades: NS-12
| 678 students
Shining Mountain Waldorf School
Shining Mountain Waldorf School Photo - Movement
Special Program Emphasis
(17)
999 Violet Avenue
Boulder, CO 80304
(303) 444-7697
Grades: PK-12
| 200 students
200 San Miguel River Dr
Telluride, CO 81435
(970) 728-1969
Grades: PK-12
| 120 students

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