For the 2025-26 school year, there are 49 private schools serving 5,038 students in Boulder County, CO (there are 87 public schools, serving 45,107 public students). 10% of all K-12 students in Boulder County, CO are educated in private schools (compared to the CO state average of 8%).
The top ranked private schools in Boulder County, CO include Dawson School, Boulder Country Day, and Bixby School.
The average tuition cost is $18,021, which is higher than the Colorado private school average tuition cost of $14,732.
Top Ranked Boulder County Private Schools (2025-26)
School
Location
Quick Facts
4820 Nautilus Ct N
Boulder, CO 80301
(303) 527-4931
Boulder, CO 80301
(303) 527-4931
Gr: NS-8 | 293 students Avg. class size: 16 students Sports: 5 | Extracurrculars: 7 Tuition listed
10455 Dawson Drive
Lafayette, CO 80026
(303) 665-6679
Lafayette, CO 80026
(303) 665-6679
Gr: K-12 | 515 students Avg. class size: 15 students Sports: 11 | Extracurrculars: 7 Tuition listed
Fusion Academy Boulder County
Alternative School
168 Centennial Parkway, Suite 100
Louisville, CO 80027
(877) 673-8893
Louisville, CO 80027
(877) 673-8893
Gr: 6-12 Avg. class size: 1 student Tuition listed
4760 Table Mesa Drive
Boulder, CO 80305
(303) 494-7508
Boulder, CO 80305
(303) 494-7508
Gr: NS-5 | 127 students Avg. class size: 10 students Sports: 1 Tuition & acceptance rate listed
Friends School
Alternative School
5465 Pennsylvania Ave
Boulder, CO 80303
(303) 499-1999
Boulder, CO 80303
(303) 499-1999
Gr: PK-8 | 161 students Avg. class size: 16 students
6717 S. Boulder Road
Boulder, CO 80303
(303) 554-2011
Boulder, CO 80303
(303) 554-2011
Gr: K-8 | 164 students Avg. class size: 18 students Sports: 1 Tuition & acceptance rate listed
Mt. Zion Lutheran Preschool![Mt. Zion Lutheran Preschool Photo - Mt. Zion Students]( "Mt. Zion Lutheran Preschool Photo - Mt. Zion Students")
Daycare / Preschool (Lutheran Church Missouri Synod)
1680 Balsam Avenue
Boulder, CO 80304
(303) 746-3734
Boulder, CO 80304
(303) 746-3734
Gr: NS-PK | 37 students Avg. class size: 8 students Tuition & acceptance rate listed
1317 Mapleton Avenue
Boulder, CO 80304
(303) 447-2362
Boulder, CO 80304
(303) 447-2362
Gr: K-8 | 178 students Avg. class size: 15 students Sports: 6 | Extracurrculars: 12 Tuition listed
350 Emery St
Longmont, CO 80501
(303) 776-8760
Longmont, CO 80501
(303) 776-8760
Gr: K-8 | 251 students
925 Grant Ave
Louisville, CO 80027
(303) 666-6220
Louisville, CO 80027
(303) 666-6220
Gr: PK-8 | 132 students Avg. class size: 15 students Sports: 4 | Extracurrculars: 16 Tuition listed
96 Arapahoe Ave.
Boulder, CO 80302
(303) 443-9933
Boulder, CO 80302
(303) 443-9933
Gr: 9-12 | 24 students Avg. class size: 8 students Sports: 1 | Extracurrculars: 8 Tuition listed
999 Violet Avenue
Boulder, CO 80304
(303) 444-7697
Boulder, CO 80304
(303) 444-7697
Gr: PK-12 | 200 students Avg. class size: 20 students Sports: 4 | Extracurrculars: 6 Tuition & acceptance rate listed
Tara Performing Arts High School![Tara Performing Arts High School Photo - Ninth grade: History through Art in New York]( "Tara Performing Arts High School Photo - Ninth grade: History through Art in New York")
Special Program Emphasis
4180 19th St
Boulder, CO 80304
(303) 410-4510
Boulder, CO 80304
(303) 410-4510
Gr: 9-12 | 55 students Tuition & acceptance rate listed
Transitional School
Alternative School (Church of Christ)
14780 N 107th St
Longmont, CO 80504
(303) 776-6841
Longmont, CO 80504
(303) 776-6841
Gr: 6-11 | 9 students
3100 Ridge View Dr
Erie, CO 80516
(303) 828-4944
Erie, CO 80516
(303) 828-4944
Gr: PK-8 | 86 students Avg. class size: 15 students Sports: 4 | Extracurrculars: 1 Tuition listed
250 South Cherrywood Dr
Lafayette, CO 80026
(303) 665-6789
Lafayette, CO 80026
(303) 665-6789
Gr: K-6 | 85 students Avg. class size: 20 students Extracurrculars: 6
The Barred Academy![The Barred Academy Photo - Neurodivergent students thrive academically, socially, and emotionally at The Barred Academy!]( "The Barred Academy Photo - Neurodivergent students thrive academically, socially, and emotionally at The Barred Academy!")
Special Education School
818 W South Boulder Rd
Louisville, CO 80027
(303) 551-0118
Louisville, CO 80027
(303) 551-0118
Gr: 1-8 | 25 students Avg. class size: 8 students Tuition listed
Blue Mountain Montessori
Montessori School
201 S Briggs St
Erie, CO 80516
(303) 339-0117
Erie, CO 80516
(303) 339-0117
Gr: PK-K | 45 students
Boulder Montessori School
Montessori School
3300 Redstone Road
Boulder, CO 80305
(303) 494-5814
Boulder, CO 80305
(303) 494-5814
Gr: NS-PK | 105 students
6500 West Dry Creek Parkway
Longmont, CO 80503
(303) 652-0130
Longmont, CO 80503
(303) 652-0130
Gr: PK-8 | 144 students Avg. class size: 12 students Sports: 1 Tuition listed
4072 19th Street
Boulder, CO 80304
(303) 541-0671
Boulder, CO 80304
(303) 541-0671
Gr: NS-K | 68 students Avg. class size: 15 students Tuition & acceptance rate listed
Crossroads School![Crossroads School Photo - Crossroads 2022-2023 Graduates]( "Crossroads School Photo - Crossroads 2022-2023 Graduates")
Alternative School (Christian)
833 15th Ave.
Longmont, CO 80501
(303) 709-9881
Longmont, CO 80501
(303) 709-9881
Gr: 6-12 | 50 students Extracurrculars: 1 Tuition listed
Fairview Montessori School
Montessori School
1501 Jefferson Avenue
Louisville, CO 80027
(303) 661-0343
Louisville, CO 80027
(303) 661-0343
Gr: PK-K | 61 students Avg. class size: 24 students
2687 Northpark Dr
Lafayette, CO 80026
(303) 928-9990
Lafayette, CO 80026
(303) 928-9990
Gr: PK-K | 30 students Tuition listed
Gateway Montessori School
Montessori School
1500 9th Ave
Longmont, CO 80501
(303) 772-3864
Longmont, CO 80501
(303) 772-3864
Gr: NS-K | 65 students Avg. class size: 24 students Tuition listed
The Goddard School![The Goddard School Photo - We are learning to care for our friends, our environment, our garden!]( "The Goddard School Photo - We are learning to care for our friends, our environment, our garden!")
Daycare / Preschool
380 Centennial Parkway
Louisville, CO 80027
(720) 739-1938
Louisville, CO 80027
(720) 739-1938
Gr: NS-K | 117 students
Hillside School
Special Education School
6620 Gunpark Rd
Longmont, CO 80301
(303) 494-1468
Longmont, CO 80301
(303) 494-1468
Gr: 2-12 | 57 students Avg. class size: 4 students Tuition listed
Jarrow Montessori School
Montessori School
3900 Orange Ct
Boulder, CO 80304
(303) 443-0511
Boulder, CO 80304
(303) 443-0511
Gr: PK-6 | 183 students Avg. class size: 20 students Extracurrculars: 5 Tuition listed
KinderCare Learning Center at UCAR
Daycare / Preschool
3050 34th St
Boulder, CO 80301
(303) 443-5595
Boulder, CO 80301
(303) 443-5595
Gr: NS-PK
1440 Collyer St
Longmont, CO 80501
(303) 776-3254
Longmont, CO 80501
(303) 776-3254
Gr: PK-12 | 129 students Extracurrculars: 3 Tuition listed
Longmont KinderCare![Longmont KinderCare Photo - Longmont KinderCare]( "Longmont KinderCare Photo - Longmont KinderCare")
Daycare / Preschool
851 Crisman Dr.
Longmont, CO 80501
(303) 651-1008
Longmont, CO 80501
(303) 651-1008
Gr: NS-PK | 94 students
Louisville KinderCare![Louisville KinderCare Photo - Exterior of the building]( "Louisville KinderCare Photo - Exterior of the building")
Daycare / Preschool
107 McCaslin Blvd
Louisville, CO 80027
(303) 666-9999
Louisville, CO 80027
(303) 666-9999
Gr: NS-PK
Louisville Montessori School
Daycare / Preschool
461 Tyler Ave
Louisville, CO 80027
(303) 665-2002
Louisville, CO 80027
(303) 665-2002
Gr: PK-K | 27 students Avg. class size: 20 students Tuition & acceptance rate listed
Make A Mess And Make Believe
Daycare / Preschool
1919 Yarmouth Ave
Boulder, CO 80304
(303) 443-8909
Boulder, CO 80304
(303) 443-8909
Gr: PK-K | 45 students Tuition listed
Show 14 more private schools in Boulder County, CO (out of 49 total schools)
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Boulder County Private Schools (Closed)
School
Location
Quick Facts
Blue Sky Kindergarten (Closed 2013)
Daycare / Preschool
3046 11th St
Boulder, CO 80304
(303) 443-4965
Boulder, CO 80304
(303) 443-4965
Gr: PK-K | 34 students
Bright Horizons at Louisville (Closed 2025)
Daycare / Preschool
1818 Centennial Dr
Louisville, CO 80027
(303) 665-5511
Louisville, CO 80027
(303) 665-5511
Gr: NS-K Tuition & acceptance rate listed
Bright Horizons at West Longmont (Closed 2022)
Daycare / Preschool
1011 Dry Creek Dr
Longmont, CO 80503
(303) 682-0102
Longmont, CO 80503
(303) 682-0102
Gr: NS-K
The Cottage School - Terry (Closed 2023)
Montessori School
1941 Terry St
Longmont, CO 80501
(303) 651-3780
Longmont, CO 80501
(303) 651-3780
Gr: K | 3 students
Countryside Montessori School (Closed 2022)
Montessori School
5524 Baseline Rd
Boulder, CO 80303
(303) 494-3100
Boulder, CO 80303
(303) 494-3100
Gr: PK-K | 33 students Acceptance rate listed
Desiderata School (Closed 2025)
Alternative School
8979 Nelson Rd.
Longmont, CO 80503
(303) 678-9335
Longmont, CO 80503
(303) 678-9335
Gr: 6-12 | 18 students Avg. class size: 10 students Tuition & acceptance rate listed
Faith Baptist School (Closed 2022)
(Baptist)
833 15th Ave
Longmont, CO 80501
(303) 776-5677
Longmont, CO 80501
(303) 776-5677
Gr: 1-12 | 129 students
Lyons Community Montessori (Closed 2020)
Montessori School
419 Main St
Lyons, CO 80540
(303) 823-9629
Lyons, CO 80540
(303) 823-9629
Gr: NS | 38 students
Our Saviors Lutheran School (Closed 2012)
(Wisconsin Evangelical Lutheran Synod)
1219 W 17th Avenue
Longmont, CO 80501
(303) 776-1688
Longmont, CO 80501
(303) 776-1688
Gr: NS-1 | 11 students Avg. class size: 3 students Tuition listed
Frequently Asked Questions
What are the top ranked private schools in Boulder County, CO?
The top ranked private schools in Boulder County, CO include Dawson School, Boulder Country Day, and Bixby School.
How many private schools are located in Boulderunty?
49 private schools are located in Boulderunty.
How much do private schools cost in Boulderunty?
The average tuition cost is $18,021, which is higher than the Colorado private school average tuition cost of $14,732.
How diverse are private schools in Boulderunty?
Boulderunty private schools are approximately 22% minority students, which is lower than the Colorado private school average of 25%.
What percentage of students in Boulderunty go to private school?
10% of all K-12 students in Boulderunty are educated in private schools (compared to the CO state average of 8%).
What percentage of private schools are religiously affiliated in Boulderunty?
Which private schools in Boulderunty are often viewed compared to one another?
Popular comparisons of private schools in Boulderunty include: Primrose School Of Longmont vs. Boulder Valley Waldorf School, Boulder Waldorf Kindergarten vs. Boulder Country Day, Bixby School vs. Boulder Country Day
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