We provide an environment where children 12 months through sixth grade joyfully reach their full potential through the development of independence; academic excellence; respect for their environment, self, and others, and moral responsibility to society through an AMI* Montessori education.*Association Montessori Internationale.
Quick Facts (2026)
- School Type: Montessori School
- Grades: Prekindergarten-6
- Enrollment: 51 students
- Acceptance rate: 99%
- Average class size: 15 students
- Application Deadline: None / Rolling
- Source: Verified school update
School Overview
School Type
School Membership(s)School Assoc.
Religious Affiliation
Grades Offered
Grades Prekindergarten-6
Year Founded
1976
Summer School Offered
Yes
School Calendar
Student Body
Total Students
51 students
Student Body Type
Co-ed
% Students of Color
5%
State avg.: 25%
Students by Grade
Academics and Faculty
Total Classroom Teachers
5 teachers
Student-Teacher Ratio
10:1
National avg.: 11:1
Average Class Size
15 students
Classroom Dress Code
Casual
Tuition and Acceptance Rate
Admission Deadline
None / Rolling
Tuition Notes
Tuition range: 15.850-36,354
% on Financial Aid
25%
Average Financial Aid Grant
$5,000
Acceptance Rate
99%
National avg.: 82%
Admissions Director
Lauren Franchek
Application URL
Extracurriculars
Total ExtracurricularsTotal Extra-curric.
3 extracurriculars
ExtracurricularsExtra-curric.
Club or Organization:
Arts and Music Programs:
Beginning SpanishVarious after-shool programs are available for our students.
Arts and Music Programs:
Music Class
School Notes
- We provide an environment where children 12 months through sixth grade joyfully reach their full potential through the development of independence; academic excellence; respect for their environment, self, and others, and moral responsibility to society through an AMI* Montessori education.*Association Montessori Internationale
Source: Verified school update
Frequently Asked Questions
What is the acceptance rate of Mountain Shadows International Montessori?
The acceptance rate of Mountain Shadows International Montessori is 99%, which is higher than the national average of 84%.
When is the application deadline for Mountain Shadows International Montessori?
The application deadline for Mountain Shadows International Montessori is rolling (applications are reviewed as they are received year-round).
Nearby Private Schools
The nearest high school to Mountain Shadows International Montessori is Hillside School (1.4 miles away)
The nearest elementary school and preschool is Boulder Country Day (0.8 miles away)
Show me:
School
Location
Miles
Quick Facts
4820 Nautilus Ct N
Boulder, CO 80301
(303) 527-4931
Boulder, CO 80301
(303) 527-4931
0.8 miles
Gr: NS-8 | 293 students Avg. class size: 16 students Sports: 4 | Extracurrculars: 7 Tuition listed
Hillside School
Special Education School
6620 Gunpark Rd
Longmont, CO 80301
(303) 494-1468
Longmont, CO 80301
(303) 494-1468
1.4 miles
Gr: 2-12 | 57 students Avg. class size: 4 students Tuition listed
3131 Indian Road
Boulder, CO 80301
(303) 554-7363
Boulder, CO 80301
(303) 554-7363
1.4 miles
Gr: 6-12 | 17 students Avg. class size: 6 students Extracurrculars: 4 Tuition & acceptance rate listed
5405 Spine Rd
Boulder, CO 80301
(303) 440-7520
Boulder, CO 80301
(303) 440-7520
1.6 miles
Gr: 6-12 | 102 students Sports: 4 | Extracurrculars: 6 Tuition listed
Joshua School-boulder
Special Education School
7077 Harvest Rd
Boulder, CO 80301
(303) 974-7732
Boulder, CO 80301
(303) 974-7732
1.8 miles
Gr: 4-12 | 18 students
School Reviews
Endorse Mountain Shadows International Montessori. Endorsements should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
- Academic or athletic awards
Recent Articles
How to Stress-Test a Private School Budget Before Enrolling
Learn how to stress-test a private school budget before enrolling and avoid financial surprises that can affect your family's long-term plans.
When “Affordable Private School” Means Fewer Services
Learn what families may sacrifice when choosing an affordable private school and how to evaluate whether lower tuition still delivers long-term value.
Voucher Eligibility Fine Print Parents Miss
Learn the hidden voucher eligibility rules that can affect school choice decisions and how parents can avoid common application mistakes.
