Top Association of Colorado Independent Schools (ACIS) Private Schools in Colorado

All Schools
(30)
All Schools
(30)
 
High Schools
(14)
High Schools
(14)
 
Elementary Schools
(28)
Elementary Schools
(28)
 
Preschools
(19)
Preschools
(19)
 
For the 2021 school year, there are 30 top private schools in Colorado belonging to the Association of Colorado Independent Schools (ACIS), serving 9,990 students.
The Association of Colorado Independent Schools (ACIS) is a non-profit organization dedicated to the continuous improvement of member schools by providing accreditation, professional development, and advocacy services. It is affiliated with the National Association of Independent Schools (NAIS). The independent schools in ACIS operate primarily on tuition, charitable contributions, and endowment income, not on tax or church funds. You can also find more schools membership associations in Colorado.

Top Association of Colorado Independent Schools (ACIS) Private Schools (2021)

  • School Location Grades Students
  • 5859 S University Blvd
    Littleton, CO 80121
    (303) 346-3500

    Grades: PK-8 | 418 students
  • 21 Broadmoor Ave
    Colorado Springs, CO 80906
    (719) 475-9747

    Grades: PK-12 | 362 students
  • St. Mary's Academy
    St. Mary's Academy Photo
    (Roman Catholic)
    4545 S University Blvd
    Englewood, CO 80113
    (303) 762-8300

    Grades: PK-12 | 688 students
  • 3000 Booth Falls Road
    Vail, CO 81657
    (970) 476-3850

    Grades: K-12 | 430 students
  • 85 Country Day Way
    Aspen, CO 81611
    (970) 925-1909

    Grades: PK-8 | 285 students
  • 4820 Nautilus Ct N
    Boulder, CO 80301
    (303) 527-4931

    Grades: NS-8 | 362 students
  • 500 Holden Way
    Carbondale, CO 81623
    (970) 963-2562

    Grades: 9-12 | 167 students
  • P O Box 1180
    Crested Butte, CO 81224
    (970) 349-1805

    Grades: 8-12 | 61 students
  • 10455 Dawson Drive
    Lafayette, CO 80026
    (303) 665-6679

    Grades: K-12 | 529 students
  • Denver Academy
    Denver Academy Photo - Elementary School
    Special Program Emphasis
    4400 E Iliff Avenue
    Denver, CO 80222
    (303) 777-5161

    Grades: 1-12 | 756 students
  • 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
    2100 S. Pennsylvania St.
    Denver, CO 80210
    (303) 777-0531

    Grades: PK-12 | 376 students
  • 1036 El Rancho Rd. c/o Evergreen Country Day
    Evergreen, CO 80439
    (303) 674-3400

    Grades: NS-8 | 188 students
  • 5465 Pennsylvania Ave
    Boulder, CO 80303
    (303) 499-1999

    Grades: NS-8 | 176 students
  • 55 Clermont St
    Denver, CO 80220
    (303) 399-8361

    Grades: NS-8 | 699 students
  • Havern School
    Havern School Photo - A beautiful fall day on the Havern campus
    Special Education School
    4000 South Wadsworth
    Littleton, CO 80123
    (303) 986-4587

    Grades: K-8 | 85 students
  • 4000 East Quincy Avenue
    Englewood, CO 80113
    (303) 770-7660

    Grades: 6-12 | 726 students
  • 1005 Yosemite Street
    Denver, CO 80230
    (303) 340-2444

    Grades: K-8 | 241 students
  • Mackintosh Academy Littleton
    Mackintosh Academy Littleton Photo - Mackintosh Academy Celebrates Green Ribbon Award!
    Special Program Emphasis
    7018 S Prince St
    Littleton, CO 80120
    (303) 794-6222

    Grades: NS-8 | 122 students
  • 415 E Abriendo Ave.
    Pueblo, CO 81004
    (719) 543-5271

    Grades: PK-8 | 108 students
  • 2500 Curtis Street
    Denver, CO 80205
    (303) 623-2609

    Grades: PK-6 | 177 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 | 331 students
  • 2701 S York Street
    Denver, CO 80210
    (303) 756-9481

    Grades: PK-8 | 432 students
  • 2350 Gaylord St.
    Denver, CO 80205
    (303) 322-4209

    Grades: K-8 | 140 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.
    (Roman Catholic)
    4545 South University Boulevard
    Englewood, CO 80113
    (303) 762-8300

    Grades: PK-12 | 676 students
  • Shining Mountain Waldorf School
    Shining Mountain Waldorf School Photo - Movement
    Special Program Emphasis
    999 Violet Avenue
    Boulder, CO 80304
    (303) 444-7697

    Grades: PK-12 | 296 students
  • 350 Quebec Street
    Denver, CO 80230
    (303) 360-0803

    Grades: K-8 | 458 students
  • 42605 County Road 36
    Steamboat Springs, CO 80487
    (970) 879-1350

    Grades: 9-12 | 62 students
  • Telluride Mountain School
    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.
    Montessori School
    200 San Miguel River Dr
    Telluride, CO 81435
    (970) 728-1969

    Grades: PK-12 | 113 students
  • Waldorf School On The Roaring Fork
    Special Program Emphasis
    16543 Old Highway 82
    Carbondale, CO 81623
    (970) 963-1960

    Grades: PK-8 | 187 students
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