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Best Colorado Nonsectarian Private Schools (2025-26)

For the 2025-26 school year, there are 201 nonsectarian private schools in Colorado. You can also find more religiously affiliated schools in Colorado.
The top ranked nonsectarian private schools in Colorado include Colorado Academy, Fountain Valley School of Colorado, and Kent Denver School.

Top Ranked Nonsectarian Private Schools 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
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
Gr: K-12 | 515 students Avg. class size: 15 students Sports: 11 | Extracurrculars: 7 Tuition listed
Denver Academy
Denver Academy Photo - Visual Arts
Special Education School
4400 E Iliff Avenue
Denver, CO 80222
(303) 777-5161
Gr: 2-12 | 457 students Avg. class size: 12 students Sports: 11 | Extracurrculars: 11 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
International School of Denver
International School of Denver Photo
Special Program Emphasis
(9)
7701 E 1st Pl, Unit C
Denver, CO 80230
(303) 340-3647
Gr: PK-9 | 671 students Avg. class size: 13 students Sports: 7 | Extracurrculars: 32 Tuition & acceptance rate listed
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
(16)
2500 Curtis Street
Denver, CO 80205
(303) 623-2609
Gr: NS-8 | 287 students Avg. class size: 18 students Sports: 1 | Extracurrculars: 6 Tuition & acceptance rate listed
Vail Mountain School
Vail Mountain School Photo
(7)
3000 Booth Falls Road
Vail, CO 81657
(970) 476-3850
Gr: K-12 | 418 students Avg. class size: 15 students Sports: 11 Tuition listed
Brightmont Academy - Broomfield
Special Program Emphasis
549 Flatiron Blvd, Suite C
Broomfield, CO 80021
(720) 961-5091
Gr: 1-12 Avg. class size: 1 student Tuition & acceptance rate listed
Fusion Academy Boulder County
Alternative School
168 Centennial Parkway, Suite 100
Louisville, CO 80027
(877) 673-8893
Gr: 6-12 Avg. class size: 1 student Tuition listed
Humanex Academy
Humanex Academy Photo - Volunteering in the community
Special Education School
(2)
2700 S Zuni Street
Englewood, CO 80110
(303) 783-0137
Gr: 6-12 | 35 students Avg. class size: 5 students Extracurrculars: 4 Tuition & acceptance rate listed
Mountain Montessori
Montessori School
77 Metcalf Rd
Avon, CO 81620
(970) 390-3941
Gr: NS-K | 40 students 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
Aspen Park iMontessori
Aspen Park iMontessori Photo - Learning the Physics of Drone flying.
Montessori School
25782 Vosler Street
Conifer, CO 80433
(303) 668-1532
Gr: NS-3 | 30 students Avg. class size: 10 students Extracurrculars: 1 Tuition & acceptance rate 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
Brightmont Academy - Castle Pines
858 W. Happy Canyon Rd. Ste. 170
Castle Rock, CO 80108
(720) 961-5073
Gr: 1-12 Avg. class size: 10 students Tuition & acceptance rate listed
Canyon Point KinderCare
Canyon Point KinderCare Photo - Canyon Point KinderCare
Daycare / Preschool
107 N Rubey Dr
Golden, CO 80403
(303) 279-9171
Gr: NS-PK | 132 students Avg. class size: 15 students Acceptance rate listed
Colorado Rocky Mountain School
Colorado Rocky Mountain School Photo - Colorado Rocky Mountain School Mountain Campus
500 Holden Way
Carbondale, CO 81623
(970) 963-2562
Gr: 9-12 | 163 students Avg. class size: 12 students Sports: 13 | Extracurrculars: 22 Tuition 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
Colorado Timberline Academy
Colorado Timberline Academy Photo - Weekend Trip to Bisti Badlands in New Mexico
Alternative School
(1)
454 Academy Drive
Durango, CO 81301
(970) 247-5898
Gr: 9-12 | 30 students Avg. class size: 6 students Sports: 10 | Extracurrculars: 3 Tuition & acceptance rate listed
Creme De La Creme Colorado
Daycare / Preschool
7550 Park Meadows Drive
Lone Tree, CO 80124
(303) 662-9150
Gr: PK-K | 229 students Avg. class size: 12 students Sports: 4 | Extracurrculars: 8 Tuition listed
Crested Butte Academy
(1)
P O Box 1180
Crested Butte, CO 81224
(970) 349-1805
Gr: 8-12 | 61 students Avg. class size: 6 students Sports: 11 | Extracurrculars: 5 Tuition listed
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
Gr: PK-12 | 377 students Avg. class size: 25 students Sports: 4 Tuition & acceptance rate listed
Durango Early Learning Center
Alternative School
890 East Third Ave
Durango, CO 81301
(970) 259-1483
Gr: NS-3 | 71 students Avg. class size: 15 students Tuition & acceptance rate listed
Early Connections Day Nursery
Early Connections Day Nursery Photo - Early Connections Day Nursery
Daycare / Preschool
104 E Rio Grande Street
Colorado Springs, CO 80903
(719) 632-1754
Gr: NS-5 | 700 students Avg. class size: 16 students Tuition listed
Evergreen Country Day School
(7)
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
Fountain Valley School of Colorado
Fountain Valley School of Colorado Photo - Fountain Valley School offers visual art classes in ceramics, sculpture, painting/drawing, jewelry-making (metal-smithing), photography, and film. The School's three-story Art Barn is dedicated solely to the pursuit of these fields.
6155 Fountain Valley School Road
Colorado Springs, CO 80911
(719) 391-5251
Gr: 9-12 | 230 students Avg. class size: 10 students Sports: 17 | Extracurrculars: 25 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
Front Range Academy
Alternative School
1008 Depot Hill Road
Broomfield, CO 80020
(303) 469-0496
Gr: 6-12 | 400 students
High Mountain Institute
High Mountain Institute Photo - Winter Ski trip in the Spring semester
Special Program Emphasis
531 County Rd 5A
Leadville, CO 80461
(719) 486-8200
Gr: 11-12 | 40 students Avg. class size: 10 students Sports: 4 Tuition & acceptance rate listed
Hope Center
Special Program Emphasis
(1)
3400 Elizabeth St
Denver, CO 80205
(303) 388-4801
Gr: PK-K | 98 students
Hope Montessori
Montessori School
2041 Chuckwagon Road
Colorado Springs, CO 80919
(719) 388-8818
Gr: PK-K | 545 students Avg. class size: 12 students Extracurrculars: 5
Junior Academy
Special Program Emphasis
1311 N Nevada Ave
Colorado Springs, CO 80903
(719) 632-7681
Gr: NS-PK | 70 students
Kent Denver School
Kent Denver School Photo
4000 East Quincy Avenue
Englewood, CO 80113
(303) 770-7660
Gr: 6-12 | 784 students Avg. class size: 15 students Sports: 20 | Extracurrculars: 19 Tuition listed
Show 100 more private schools in Colorado (out of 201 total schools)
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