Top 20 Best Colorado Private Schools Belonging to Association of Colorado Independent Schools (ACIS) (2024)

For the 2024 school year, there are 31 private schools belonging to Association of Colorado Independent Schools (ACIS) serving 9,697 students in Colorado. You can also find more schools membership associations in Colorado.
The top ranked private schools belonging to Association of Colorado Independent Schools (ACIS) in Colorado include Kent Denver School, Fountain Valley School of Colorado and The Colorado Springs School.
The average tuition cost is $25,338, which is higher than the Colorado private school average tuition cost of $13,014.
16% of private schools belonging to Association of Colorado Independent Schools (ACIS) in Colorado are religiously affiliated (most commonly Catholic and Episcopal).

Top Ranked Private Schools Belonging to Association of Colorado Independent Schools (ACIS) in Colorado (2024)

School
Location
Grades
Students
Aspen Academy
Aspen Academy Photo - PreK students learning about science and nature with a classroom worm bin.
(3)
5859 S University Blvd
Littleton, CO 80121
(303) 346-3500
Grades: PK-8
| 400 students
Boulder Country Day
Boulder Country Day Photo - Welcome to Boulder Country Day School, where academic distinction meets education with character. BCD is a top-rated, accredited PS-8th independent school in Boulder, Colorado where every child has the opportunity to discover their own unique excellence. Distinguished by small class sizes, outstanding faculty, engaging academics and a focus on community, we strive to create a well-rounded educational environment.
(8)
4820 Nautilus Ct N
Boulder, CO 80301
(303) 527-4931
Grades: NS-8
| 361 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.
(1)
21 Broadmoor Ave
Colorado Springs, CO 80906
(719) 434-3500
Grades: PK-12
| 336 students
Dawson School
Dawson School Photo - Each fall, the entire high school participates in class trips to many locations around the state. Students learn camping skills, rafting, leadership, team building and participate in community service.
(9)
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
Graland Country Day School
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.
(3)
55 Clermont St
Denver, CO 80220
(303) 399-8361
Grades: NS-8
| 701 students
Montessori Academy of Colorado
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.
Montessori School
(14)
2500 Curtis Street
Denver, CO 80205
(303) 623-2609
Grades: NS-8
| 260 students
St. Elizabeth's School
St. Elizabeth's School Photo - Our Campus
(Episcopal)
1800 N. Pontiac Street
Denver, CO 80220
(303) 322-4209
Grades: K-8
| 137 students
Vail Mountain School
Vail Mountain School Photo
(7)
3000 Booth Falls Road
Vail, CO 81657
(970) 476-3850
Grades: K-12
| 418 students
Aspen Country Day School
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.
(1)
85 Country Day Way
Aspen, CO 81611
(970) 925-1909
Grades: PK-8
| 295 students
500 Holden Way
Carbondale, CO 81623
(970) 963-2562
Grades: 9-12
| 160 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 - 10th graders in the Negev desert region of Israel on their annual six week Hebrew and Israel immersion experience.
(Jewish)
2450 S Wabash St
Denver, CO 80231
(303) 369-0663
Grades: NS-12
| 339 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
Escuela De Guadalupe
Escuela De Guadalupe Photo - Escuela de Guadalupe
(Catholic)
(1)
660 Julian St.
Denver, CO 80204
(303) 964-8456
Grades: PK-8
| 419 students
1036 El Rancho Rd. c/o Evergreen Country Day
Evergreen, CO 80439
(303) 674-3400
Grades: NS-8
| 210 students
6155 Fountain Valley School Road
Colorado Springs, CO 80911
(719) 391-5251
Grades: 9-12
| 239 students
Havern School
Havern School Photo - Havern offers a warm and accepting environment that allows students to become confident self-advocates.
Special Program Emphasis
(4)
4000 South Wadsworth
Littleton, CO 80123
(303) 986-4587
Grades: K-8
| 95 students
Kent Denver School
Kent Denver School Photo
4000 East Quincy Avenue
Englewood, CO 80113
(303) 770-7660
Grades: 6-12
| 761 students
The Logan School for Creative Learning
The Logan School for Creative Learning Photo
Special Program Emphasis
1005 Yosemite Street
Denver, CO 80230
(303) 340-2444
Grades: K-8
| 241 students
The Mcclelland School
The Mcclelland School Photo - The McClelland School has active seating in Kindergarten-2nd grade. We have stability disk in chairs at the student's desks and stability balls in the reading areas. This helps to stimulate blood flow, encourage active learning and develop core muscles.
(1)
415 E Abriendo Ave.
Pueblo, CO 81004
(719) 543-5271
Grades: PK-8
| 86 students
Montessori School Of Denver
Montessori School Of Denver Photo - Montessori School of Denver's Cinco de Mayo Celebration. MSD Students celebrate with song, dance, and a cultural festival.
Montessori School
1460 South Holly Street
Denver, CO 80222
(303) 756-9441
Grades: NS-8
| 352 students
St. Anne's Episcopal School
St. Anne's Episcopal School Photo - St. Anne's sits on 7 acres in Denver, Colorado. In this photo is the heart of our campus, the amphitheater. Each Tuesday, we gather together as a preschool through grade eight community for assembly led by our eighth grade student leaders.
(Episcopal)
2701 S York Street
Denver, CO 80210
(303) 756-9481
Grades: NS-8
| 443 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
(15)
999 Violet Avenue
Boulder, CO 80304
(303) 444-7697
Grades: PK-12
| 250 students
350 Quebec Street
Denver, CO 80230
(303) 360-0803
Grades: K-8
| 459 students
Steamboat Mountain School
Steamboat Mountain School Photo - Get outdoors on the weekends, mountain biking, ice climbing, or backcountry skiing. You can try it for the first time!
(6)
42605 County Road 36
Steamboat Springs, CO 80487
(970) 879-1350
Grades: 9-12
| 62 students
Friends School
Alternative School
5465 Pennsylvania Ave
Boulder, CO 80303
(303) 499-1999
Grades: PK-8
| 161 students
Mackintosh Academy Littleton
Mackintosh Academy Littleton Photo - Mackintosh Academy Littleton
Special Program Emphasis
(2)
7018 S Prince St
Littleton, CO 80120
(303) 794-6222
Grades: NS-8
| 129 students
200 San Miguel River Dr
Telluride, CO 81435
(970) 728-1969
Grades: PK-12
| 139 students
Waldorf School On The Roaring Fork
Special Program Emphasis
16543 Old Highway 82
Carbondale, CO 81623
(970) 963-1960
Grades: PK-8
| 163 students

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