Diamond Bar Montessori Academy

Diamond Bar Montessori Academy serves 30 students in grades Kindergarten-1, is a member of the Other Montessori association(s) and the National Association for the Education of Young Children.
The student:teacher of Diamond Bar Montessori Academy is 10:1 and the school's religious affiliation is Nonsectarian.

Quick Facts (2025-26)

  • School Type: Montessori School
  • Grades: Kindergarten-1
  • Enrollment: 30 students
  • Acceptance rate: 95%
  • Average class size: 15 students
  • Application Deadline: None / Rolling
  • Source: Verified school update

Top Rankings

Diamond Bar Montessori Academy ranks among the top 20% of private schools in California for:

Category
Attribute

School Overview

Religious Affiliation
Grades Offered
Grades Kindergarten-1
Year Founded
2000
Summer School Offered
Yes
School Calendar

Student Body

Total Students
30 students
Student Body Type
Co-ed
% Students of Color
93%
State avg.: 51%
Students by Grade
Diamond Bar Montessori Academy Student By Grade

Academics and Faculty

Total Classroom Teachers
3 teachers
Student-Teacher Ratio
10:1
National avg.: 13:1
% Faculty w/Advanced Degree
25%
Average Class Size
15 students
Classroom Dress Code
Formal
Uniform for children 3 and up

Tuition and Acceptance Rate

Admission Deadline
None / Rolling
Tuition Notes
Tuition depends on childs age and program selected.
% on Financial Aid
5%
Acceptance Rate
95%
National avg.: 81%
Admissions Director
Ms. Karla Castro
Application URL

Sports

Total Sports Offered
6 sports

Extracurriculars

Total ExtracurricularsTotal Extra-curric.
2 extracurriculars
ExtracurricularsExtra-curric.
Art ClassMusic Class

Source: Verified school update

Frequently Asked Questions

What schools are Diamond Bar Montessori Academy often compared to?
Diamond Bar Montessori Academy is often viewed alongside schools like Landmark Christian Preschool by visitors of our site.
What is the acceptance rate of Diamond Bar Montessori Academy?
The acceptance rate of Diamond Bar Montessori Academy is 95%, which is higher than the national average of 80%.
What sports does Diamond Bar Montessori Academy offer?
Diamond Bar Montessori Academy offers 6 interscholastic sports: Baseball, Basketball, Cheering, Dance, Golf and Soccer.
When is the application deadline for Diamond Bar Montessori Academy?
The application deadline for Diamond Bar Montessori Academy is rolling (applications are reviewed as they are received year-round).

School Reviews

  5.00 out of 5  (4 reviews)
5  
I am so grateful to have found Diamond Bar Montessori Academy for my child. The teachers and staff are fantastic and truly care about each child's success and well-being. The Montessori approach to education is amazing and my child has thrived under their personalized learning approach. The campus is beautiful and well equipped with all the resources needed to enhance the learning experience. I would highly recommend Diamond Bar Montessori Academy to any parent looking for a high-quality Montessori education for their child. 5 stars!"
- Posted by
5  
Nice place for the kids to grow. They gave individual attention to my kid, I enrolled him in this renowned school in Mid July and I can see major improvements in him. Interactive atmosphere and Special thanks to all teachers and staff for their best efforts!
- Posted by
5  
Loved the experience of my niece going to Diamond Bar Montessori. She's started liking different varieties of food which are introduced to her in the school. I've never seen a daycare that works on the holistic well-being of a child. Children are engaged in challenging activities that help them to be a better person in future.
- Posted by
5  
My little girl loves it here. The staff listened and understood my worries and concerns about my daughter as she has had a tough start in life. The best thing I`ve done is choose diamond bar Montessori. Thank you, guys.
- Posted by

Endorse Diamond Bar Montessori Academy. 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
Endorse this school:

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.

Quick Facts (2025-26)

  • School Type: Montessori School
  • Grades: Kindergarten-1
  • Enrollment: 30 students
  • Acceptance rate: 95%
  • Average class size: 15 students
  • Application Deadline: None / Rolling
  • Source: Verified school update

Request Information

Did You Know?

The average private school tuition in Los Angeles County, CA is $17,962 for elementary schools and $23,367 for high schools (read more about average private school tuition across the country).
The average acceptance rate in Los Angeles County, CA is 79% (read more about average acceptance rates across the country).

Related School Videos

Quick Links