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Best Colorado Nonsectarian Private Schools (2021)

For the 2021 school year, there are 196 nonsectarian private schools in Colorado. You can also find more religiously affiliated schools in Colorado.
The best top ranked nonsectarian private schools in Colorado include The Colorado Springs School, Graland Country Day School and Iliff Preschool, Kdgn, And School-age Summ.

Top Nonsectarian Private Schools in Colorado (2021)

School
Location
Grades
Students
The Colorado Springs School
The Colorado Springs School Photo - Winter Wonderland at CSS!
(1)
21 Broadmoor Ave
Colorado Springs, CO 80906
(719) 475-9747
Grades: PK-12
| 362 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.
(2)
55 Clermont St
Denver, CO 80220
(303) 399-8361
Grades: NS-8
| 699 students
Iliff Preschool, Kdgn, And School-age Summ
Iliff Preschool, Kdgn, And School-age Summ Photo - Making friends is what we are all about.
Daycare / Preschool
(2)
4140 E Iliff Ave
Denver, CO 80222
(303) 757-3551
Grades: PK-K
| 173 students
Rocky Mountain Montessori Academy
Montessori School
7675 Lexington Dr
Colorado Springs, CO 80920
(719) 592-0900
Grades: NS-6
| 68 students
Vail Mountain School
Vail Mountain School Photo
(4)
3000 Booth Falls Road
Vail, CO 81657
(970) 476-3850
Grades: K-12
| 430 students
The Academy Ece Of Arvada
Daycare / Preschool
6412 Fig St
Arvada, CO 80004
(303) 424-0246
Grades: PK-K
| 52 students
Aspen Academy
Aspen Academy Photo - PreK students learning about science and nature with a classroom worm bin.
(1)
5859 S University Blvd
Littleton, CO 80121
(303) 346-3500
Grades: PK-8
| 438 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 his or her 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.
(4)
4820 Nautilus Ct N
Boulder, CO 80301
(303) 527-4931
Grades: NS-8
| 362 students
Brightmont Academy - Broomfield
Special Program Emphasis
549 Flatiron Blvd, Suite C
Broomfield, CO 80021
(720) 961-5091
Grades: 6-12
| n/a students
Humanex Academy
Humanex Academy Photo - Sources of Strength project
Special Education School
(1)
2700 S Zuni Street
Englewood, CO 80110
(303) 783-0137
Grades: 6-12
| 35 students
International School of Denver
International School of Denver Photo - At ISDenver, your children will transform from students to global citizens. We are a multicultural, multilingual school, welcoming children ages 3 - 8th grade to our inclusive, globally minded community.
Special Program Emphasis
(4)
7701 E 1st Pl, Unit C
Denver, CO 80230
(303) 340-3647
Grades: PK-8
| 716 students
Montessori Academy of Colorado
Montessori Academy of Colorado Photo
Montessori School
(13)
2500 Curtis Street
Denver, CO 80205
(303) 623-2609
Grades: PK-6
| 177 students
Bixby School
Bixby School Photo
(8)
4760 Table Mesa Drive
Boulder, CO 80305
(303) 494-7508
Grades: PK-5
| 102 students
Child Nursery Centers
Daycare / Preschool
104 E Rio Grande Street
Colorado Springs, CO 80903
(719) 632-1754
Grades: NS-5
| 700 students
Colorado Academy
Colorado Academy Photo - Colorado Academy starts with Pre-Kindergartners and graduates seniors who have become curious, kind, courageous, and adventurous learners and leaders--ready to make an impact in the communities where they choose to land.
3800 S Pierce St
Denver, CO 80235
(303) 914-2513
Grades: PK-12
| 1,027 students
Colorado Rocky Mountain School
500 Holden Way
Carbondale, CO 81623
(970) 963-2562
Grades: 9-12
| 167 students
Colorado Timberline Academy
Colorado Timberline Academy Photo
(1)
454 Academy Drive
Durango, CO 81301
(970) 247-5898
Grades: 9-12
| 30 students
Crested Butte Academy
(1)
P O Box 1180
Crested Butte, CO 81224
(970) 349-1805
Grades: 8-12
| 61 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.
(7)
10455 Dawson Drive
Lafayette, CO 80026
(303) 665-6679
Grades: K-12
| 529 students
Desiderata School
Desiderata School Photo - Students may complete independent study assignments with adult instructor supervision and assistance in a number of different facilities. These students are working at the Tutoring Club of Longmont during the 2010-2011 school year.
Alternative School
2051 Terry Street, Suite A
Longmont, CO 80501
(303) 678-9335
Grades: 4-12
| 18 students
East Thornton KinderCare
East Thornton KinderCare Photo - Lobby
Daycare / Preschool
4200 E 128th Ave
Thornton, CO 80241
(303) 451-5210
Grades: NS-PK
| 151 students
Fountain Valley School Of Colorado
Fountain Valley School Of Colorado Photo - Our Art Barn includes equipment and facilities for photography, studio art, metal-smithing and ceramics.
Special Program Emphasis
6155 Fountain Valley School Road
Colorado Springs, CO 80911
(719) 391-5251
Grades: 9-12
| 239 students
Havern School
Havern School Photo - A beautiful fall day on the Havern campus
Special Education School
(1)
4000 South Wadsworth
Littleton, CO 80123
(303) 986-4587
Grades: K-8
| 85 students
Jarrow Montessori School
Montessori School
3900 Orange Ct
Boulder, CO 80304
(303) 443-0511
Grades: PK-6
| 190 students
Kent Denver School
Kent Denver School Photo
4000 East Quincy Avenue
Englewood, CO 80113
(303) 770-7660
Grades: 6-12
| 726 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
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
| 108 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
Morgridge Academy
Special Program Emphasis
1400 Jackson St
Denver, CO 80206
(303) 398-1103
Grades: K-8
| 67 students
September School
Alternative School
96 Arapahoe Ave
Boulder, CO 80302
(303) 443-9933
Grades: 9-12
| 50 students
Sidewalk's End Montessori School
Sidewalk's End Montessori School Photo - Transferring with chop sticks in the Practical LIfe section of the classroom helps the children learn the use of chop sticks, improves hand-eye coordination and strengthens the hand in preparation for writing.
Montessori School
3215 Woodland Hills Drive
Colorado Springs, CO 80918
(719) 266-0026
Grades: PK-K
| 66 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
Temple Grandin School
Temple Grandin School Photo - TGS Trades Classroom
Special Education School
3131 Indian Road
Boulder, CO 80301
(303) 554-7363
Grades: 6-12
| 20 students
Vertical Skills Academy
Vertical Skills Academy Photo
Special Program Emphasis
(6)
32156 Castle Court Drive #201
Evergreen, CO 80439
(303) 562-1900
Grades: 1-8
| n/a students
Willows Child Learning Centers
Daycare / Preschool
5301 S Lowell Blvd
Littleton, CO 80123
(303) 794-3871
Grades: NS-K
| 90 students
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