Gateway Montessori School (2025-26 Profile)

We are Boulder County's premier Montessori nonprofit private school specializing in early childhood education.

Residing in Longmont, CO for over thirty years, we have set the standard for providing the highest quality Montessori experience.

Our unwavering integrity and commitment to classic Montessori principles has set us apart from other preschool/kindergarten programs.

Gateway Montessori School is licensed by the State of Colorado and is a member of the AMS, (American Montessori Society), CMA, (Colorado Montessori Association), and NAMTA, (North American Montessori Teachers Association).

We have also earned the Healthy Eating, Active Living designation from Boulder County Health Department and the Eco-Healthy Child Care designation from Children's Environmental Health Network.

Quick Facts (2025-26)

School Type: Montessori School
Grades: Nursery/Preschool-Kindergarten
Enrollment: 65 students
Yearly Tuition: $7,220
Average class size: 24 students
Application Deadline: None / Rolling
Source: Verified school update

School Overview

School Type

Montessori School

School Membership(s)School Assoc.

American Montessori Society (AMS)
Other Montessori association(s)

Religious Affiliation

Nonsectarian

Grades Offered

Grades Nursery/Preschool-Kindergarten

Learning Difference Programs

Yes

Learning Programs Supported

case by case basis

Year Founded

1982

Summer School Offered

Yes

Summer Program Details

View Summer Program Details

School Calendar

View School Calendar

Student Body

Total Students

65 students

Student Body Type

Co-ed

% Students of Color

33%

State avg.: 25%

Students by Grade

Gateway Montessori School Student By Grade

Academics and Faculty

Total Classroom Teachers

12 teachers

Student-Teacher Ratio

5:1

National avg.: 13:1

% Faculty w/Advanced Degree

25%

Average Class Size

24 students

Classroom Dress Code

Casual

no dress code

Tuition and Acceptance Rate

Admission Deadline

None / Rolling

Yearly Tuition Cost

$7,220

View national tuition avg.

Application URL

Online Application

Source: Verified school update

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Frequently Asked Questions

How much does Gateway Montessori School cost?

Gateway Montessori School's tuition is approximately $7,220 for private students.

What schools are Gateway Montessori School often compared to?

Gateway Montessori School is often viewed alongside schools like Boulder Valley Waldorf School by visitors of our site.

Does Gateway Montessori School offer a summer program?

Yes, Gateway Montessori School offers a summer program. Visit their summer school page for more information.

When is the application deadline for Gateway Montessori School?

The application deadline for Gateway Montessori School is rolling (applications are reviewed as they are received year-round).

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