Adventure Montessori Learning Center Photo - Each Montessori caregiver is attentive to the individual needs of each infant and is highly trained in observation skills and child development. Our nido room is also a parent community, in that parents are supported and offered parenting techniques and education. Breast feeding rooms are available for feeding or just for snuggling during those opportune times of the day. Our caregivers support and work with your whole family.

Best Boulder County Private Elementary Schools (2025-26)

For the 2025-26 school year, there are 24 private elementary schools serving 3,189 students in Boulder County, CO.
The top ranked private elementary schools in Boulder County, CO include Dawson School, Boulder Country Day, and Bixby School.
The average tuition cost is $19,997, which is higher than the Colorado private elementary school average tuition cost of $13,110.
35% of private elementary schools in Boulder County, CO are religiously affiliated (most commonly Christian and Catholic).

Top Ranked Boulder County Private Elementary Schools (2025-26)

School
Location
Quick Facts
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
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
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
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
Friends School
Alternative School
5465 Pennsylvania Ave
Boulder, CO 80303
(303) 499-1999
Gr: PK-8 | 161 students Avg. class size: 16 students
Mackintosh Academy Boulder
(2)
6717 S. Boulder Road
Boulder, CO 80303
(303) 554-2011
Gr: K-8 | 164 students Avg. class size: 18 students Sports: 1 Tuition & acceptance rate listed
Sacred Heart Of Jesus School
Sacred Heart Of Jesus School Photo - Sacred Heart of Jesus School educating children for nearly 120 years!
(Catholic)
(14)
1317 Mapleton Avenue
Boulder, CO 80304
(303) 447-2362
Gr: K-8 | 178 students Avg. class size: 15 students Sports: 6 | Extracurrculars: 12 Tuition listed
St. John The Baptist Catholic School
(Catholic)
(4)
350 Emery St
Longmont, CO 80501
(303) 776-8760
Gr: K-8 | 251 students
925 Grant Ave
Louisville, CO 80027
(303) 666-6220
Gr: PK-8 | 132 students Avg. class size: 15 students Sports: 4 | Extracurrculars: 16 Tuition listed
Shining Mountain Waldorf School
Shining Mountain Waldorf School Photo - Movement
Special Program Emphasis
(17)
999 Violet Avenue
Boulder, CO 80304
(303) 444-7697
Gr: PK-12 | 200 students Avg. class size: 20 students Sports: 4 | Extracurrculars: 6 Tuition & acceptance rate listed
Transitional School
Alternative School (Church of Christ)
14780 N 107th St
Longmont, CO 80504
(303) 776-6841
Gr: 6-11 | 9 students
Vista Ridge Academy
Vista Ridge Academy Photo
(Seventh Day Adventist)
(2)
3100 Ridge View Dr
Erie, CO 80516
(303) 828-4944
Gr: PK-8 | 86 students Avg. class size: 15 students Sports: 4 | Extracurrculars: 1 Tuition listed
Adventure Montessori Learning Center
Adventure Montessori Learning Center Photo - Each Montessori caregiver is attentive to the individual needs of each infant and is highly trained in observation skills and child development. Our nido room is also a parent community, in that parents are supported and offered parenting techniques and education. Breast feeding rooms are available for feeding or just for snuggling during those opportune times of the day. Our caregivers support and work with your whole family.
Montessori School
(7)
250 South Cherrywood Dr
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!
Special Education School
818 W South Boulder Rd
Louisville, CO 80027
(303) 551-0118
Gr: 1-8 | 25 students Avg. class size: 8 students Tuition listed
Boulder Valley Waldorf School
Boulder Valley Waldorf School Photo - Students enjoying the playground during free play time.
Special Program Emphasis
(9)
6500 West Dry Creek Parkway
Longmont, CO 80503
(303) 652-0130
Gr: PK-8 | 144 students Avg. class size: 12 students Sports: 1 Tuition listed
Crossroads School
Crossroads School Photo - Crossroads 2022-2023 Graduates
Alternative School (Christian)
833 15th Ave.
Longmont, CO 80501
(303) 709-9881
Gr: 6-12 | 50 students Extracurrculars: 1 Tuition listed
Hillside School
Special Education School
6620 Gunpark Rd
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
Gr: PK-6 | 183 students Avg. class size: 20 students Extracurrculars: 5 Tuition listed
Longmont Christian School
Longmont Christian School Photo
(Christian)
(1)
1440 Collyer St
Longmont, CO 80501
(303) 776-3254
Gr: PK-12 | 129 students Extracurrculars: 3 Tuition listed
Messiah Lutheran School
(Lutheran Church Missouri Synod)
1335 Francis St
Longmont, CO 80501
(303) 776-3466
Gr: PK-5 | 58 students Extracurrculars: 9
Mountain Shadows International Montessori
Mountain Shadows International Montessori Photo
Montessori School
4154 63rd St
Boulder, CO 80301
(303) 530-5353
Gr: PK-6 | 51 students Avg. class size: 15 students Extracurrculars: 3 Tuition & acceptance rate listed
Rocky Mountain Christian Academy
Rocky Mountain Christian Academy Photo - Rocky Mountain Christian Academy has a weekly chapel where students, faculty, and families come together to worship and hear a brief message from a member of our community.
(Christian)
9447 Niwot Rd
Longmont, CO 80503
(303) 652-9162
Gr: PK-8 | 114 students Avg. class size: 16 students Extracurrculars: 2 Tuition & acceptance rate listed
Temple Grandin School
Temple Grandin School Photo - TGS Trades Classroom
Special Education School
(2)
3131 Indian Road
Boulder, CO 80301
(303) 554-7363
Gr: 6-12 | 17 students Avg. class size: 6 students Extracurrculars: 4 Tuition & acceptance rate listed
Watershed School
Watershed School Photo
Alternative School
(8)
5405 Spine Rd
Boulder, CO 80301
(303) 440-7520
Gr: 6-12 | 102 students Sports: 4 | Extracurrculars: 6 Tuition listed
[+] Show Closed Private Schools in Boulder County, Colorado

Boulder County Private Schools (Closed)

School
Location
Quick Facts
3046 11th St
Boulder, CO 80304
(303) 443-4965
Gr: PK-K | 34 students
1818 Centennial Dr
Louisville, CO 80027
(303) 665-5511
Gr: NS-K Tuition & acceptance rate listed
1011 Dry Creek Dr
Longmont, CO 80503
(303) 682-0102
Gr: NS-K
1941 Terry St
Longmont, CO 80501
(303) 651-3780
Gr: K | 3 students
5524 Baseline Rd
Boulder, CO 80303
(303) 494-3100
Gr: PK-K | 33 students Acceptance rate listed
8979 Nelson Rd.
Longmont, CO 80503
(303) 678-9335
Gr: 6-12 | 18 students Avg. class size: 10 students Tuition & acceptance rate listed
833 15th Ave
Longmont, CO 80501
(303) 776-5677
Gr: 1-12 | 129 students
419 Main St
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
Gr: NS-1 | 11 students Avg. class size: 3 students Tuition listed

Frequently Asked Questions

What are the top ranked private elementary schools in Boulder County, CO?
The top ranked private elementary schools in Boulder County, CO include Dawson School, Boulder Country Day, and Bixby School.
How many private elementary schools are located in Boulderunty?
24 private elementary schools are located in Boulderunty.
How much do private elementary schools cost in Boulderunty?
The average tuition cost is $19,997, which is higher than the Colorado private school average tuition cost of $13,110.
How diverse are private elementary schools in Boulderunty?
Boulderunty private elementary schools are approximately 20% minority students, which is lower than the Colorado private school average of 24%.
What percentage of private elementary schools are religiously affiliated in Boulderunty?
35% of private elementary schools in Boulderunty are religiously affiliated (most commonly Christian and Catholic).
Which private elementary schools in Boulderunty are often viewed compared to one another?
Popular comparisons of private elementary schools in Boulderunty include: Bixby School vs. Boulder Country Day

Recent Articles

Transferring from Public to Private School Mid-Year: What to Expect
Transferring from Public to Private School Mid-Year: What to Expect
Considering a mid-year transfer from public to private school? Learn what to expect with admissions, academic placement, social adjustment, and financial aid to ensure a smooth transition.
A Guide to Day vs. Boarding School: Which Is Right for Your Family
A Guide to Day vs. Boarding School: Which Is Right for Your Family
Discover the key differences between day and boarding schools to determine the best fit for your child. Explore benefits, costs, lifestyle factors, and questions to help guide your family’s decision.
The A to Z of Private Schools 2025
The A to Z of Private Schools 2025
Explore the A to Z of private schools in 2025—from admissions to tuition—offering parents and educators clear insights into today’s options.