Montessori School Of Denver Photo - Montessori School of Denver's Arts and Athletics Center

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

For the 2025-26 school year, there are 19 private preschools belonging to National Association of Independent Schools (NAIS) serving 6,485 students in Colorado. You can also find more schools membership associations in Colorado.
The top ranked private preschools belonging to National Association of Independent Schools (NAIS) in Colorado include Colorado Academy, The Colorado Springs School, and St. Mary's Academy.
The average tuition cost is $24,101, which is higher than the Colorado private preschool average tuition cost of $12,813.
16% of private preschools belonging to National Association of Independent Schools (NAIS) in Colorado are religiously affiliated (most commonly Catholic and Episcopal).

Top Ranked Private Preschools Belonging to National Association of Independent Schools (NAIS) in Colorado (2025-26)

School
Location
Quick Facts
Aspen Academy
Aspen Academy Photo - Aspen Academy is a place where community strength and service are a priority. Students -- and parents -- create lifelong friendships.
(9)
5859 S University Blvd
Littleton, CO 80121
(303) 346-3500
Gr: NS-8 | 580 students Avg. class size: 16 students Sports: 7 | Extracurrculars: 22 Tuition & acceptance rate listed
Boulder Country Day
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.
(10)
4820 Nautilus Ct N
Boulder, CO 80301
(303) 527-4931
Gr: NS-8 | 293 students Avg. class size: 16 students Sports: 5 | Extracurrculars: 7 Tuition listed
Colorado Academy
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?".
3800 S Pierce St
Denver, CO 80235
(303) 914-2513
Gr: PK-12 | 1,047 student Sports: 19 | Extracurrculars: 23 Tuition listed
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
Gr: PK-8 | 701 students Avg. class size: 18 students Sports: 11 | Extracurrculars: 39 Tuition listed
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
Gr: PK-8 | 295 students Avg. class size: 14 students Sports: 8 | Extracurrculars: 3 Tuition listed
Bixby School
Bixby School Photo
Alternative School
(20)
4760 Table Mesa Drive
Boulder, CO 80305
(303) 494-7508
Gr: NS-5 | 127 students Avg. class size: 10 students Sports: 1 Tuition & acceptance rate listed
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
Gr: PK-12 | 336 students Sports: 6 | Extracurrculars: 22 Tuition & acceptance rate listed
Denver Jewish Day School
Denver Jewish Day School Photo
(Jewish)
(2)
2450 S Wabash St
Denver, CO 80231
(303) 369-0663
Gr: PK-12 | 351 students Avg. class size: 16 students Sports: 9 | Extracurrculars: 9 Tuition listed
1036 El Rancho Rd. c/o Evergreen Country Day
Evergreen, CO 80439
(303) 674-3400
Gr: NS-8 | 210 students Avg. class size: 14 students Sports: 11 | Extracurrculars: 5 Tuition & acceptance rate listed
Friends School
Alternative School
5465 Pennsylvania Ave
Boulder, CO 80303
(303) 499-1999
Gr: PK-8 | 161 students Avg. class size: 16 students
The Mcclelland School
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.
(1)
415 E Abriendo Ave.
Pueblo, CO 81004
(719) 543-5271
Gr: PK-8 | 86 students Avg. class size: 10 students Extracurrculars: 3 Tuition listed
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
Gr: NS-8 | 356 students Avg. class size: 20 students Sports: 4 | Extracurrculars: 1 Tuition & acceptance rate listed
1800 E Prospect Rd
Fort Collins, CO 80525
(970) 493-9052
Gr: PK-5 | 173 students Avg. class size: 20 students Extracurrculars: 4 Tuition & acceptance rate listed
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)
(1)
2701 S York Street
Denver, CO 80210
(303) 756-9481
Gr: NS-8 | 434 students Avg. class size: 22 students Sports: 7 | Extracurrculars: 5 Tuition listed
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
Gr: NS-12 | 678 students Avg. class size: 16 students Sports: 15 | Extracurrculars: 10 Tuition & acceptance rate listed
350 Quebec Street
Denver, CO 80230
(303) 360-0803
Gr: PK-8 | 464 students Avg. class size: 30 students Sports: 8 | Extracurrculars: 7 Tuition listed
1467 Birch St
Denver, CO 80220
(303) 322-8324
Gr: NS-K | 57 students Tuition listed
Primrose School Of Bear Creek
Daycare / Preschool
3395 S Kipling Pkwy
Denver, CO 80227
(303) 716-7147
Gr: NS-K | 16 students
200 San Miguel River Dr
Telluride, CO 81435
(970) 728-1969
Gr: PK-12 | 120 students Avg. class size: 8 students Sports: 4 Tuition listed

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