Private School Review - Established 2003
Alsion Middle/High School Top 15 ยท Highest Avg. ACT Score (CA)
St. Helena Montessori School And Farm

California Private High Schools Belonging to Association Montessori Internationale (AMI)

For the 2026-27 school year, there are 3 private high schools belonging to Association Montessori Internationale (AMI) serving 314 students in California.
The average acceptance rate is 93%, which is higher than the California private high school average acceptance rate of 81%.
The top ranked private high school belonging to Association Montessori Internationale (AMI) in California is Alsion Middle/High School.
These schools make up under 1% of the 1,120 private schools in California and under 1% of its 272,580 private school students.

Quick Facts (26-27)

  • # Private Schools: 3

Quick Facts (26-27)

  • # Private Schools: 3

Top Ranked Private High Schools Belonging to Association Montessori Internationale (AMI) in California (2026-27)

Alsion Middle/High School Photo
Alsion Middle/High School
Gr: 7-12 | 48 students
Avg. class size: 12 students
Extracurriculars: 12
Montessori School
750 Witherly Ln
Fremont, CA 94539
(510) 445-1127
(2)
View Profile
Map of Pacific Rim International School
Pacific Rim International School
Gr: NS-12 | 115 students
Montessori School
2600 Campus Dr
San Mateo, CA 94403
(650) 685-1881
View Profile
St. Helena Montessori School And Farm Photo
St. Helena Montessori School And Farm
Gr: PK-12 | 266 students
Avg. class size: 20 students
Sports: 4 | Extracurriculars: 3
Montessori School
880 College Avenue
Saint Helena, CA 94574
(707) 963-1527
View Profile

Frequently Asked Questions

What are the top ranked private high schools belonging to Association Montessori Internationale (AMI) in California?
The top ranked private high schools belonging to Association Montessori Internationale (AMI) in California is Alsion Middle/High School.
How many private high schools belonging to Association Montessori Internationale (AMI) are located in California?
3 private high schools belonging to Association Montessori Internationale (AMI) are located in California.
2
Private Schools
314
Students
$32,100
Avg. Tuition
11%
Students of Color
9:1
Student-Teacher Ratio

Recent Articles

When a Private School Changes Head of School
When a Private School Changes Head of School
A private school leadership change can raise important questions. Learn how to evaluate head of school transitions, identify warning signs, and protect your child's educational experience before enrolling confidently.
Private School Financial Aid Renewal: Could Awards Shrink?
Private School Financial Aid Renewal: Could Awards Shrink?
Could your private school financial aid shrink next year? Learn why awards change, how income and school budgets affect renewal, and what parents can do to protect affordability long-term.
Need-Blind vs. Need-Aware Private School Admissions
Need-Blind vs. Need-Aware Private School Admissions
Understand how need-blind and need-aware private school admissions affect acceptance decisions, financial aid eligibility, and affordability, with practical guidance to help parents compare schools, ask questions, and plan confidently ahead.

Quick Links

SCHOOL SEARCH TOOLS:
SCHOOL BY TYPE (CA):
OPEN-HOUSES & JOBS:
PUBLIC & BOARDING SCHOOLS:
PRIVATE SCHOOL DATA: