Oak Knoll Montessori School
Montessori school · Grades Pre-K–8
Altadena, CA
3544 Canon Blvd, Altadena, CA 91001
Overall grade: A
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- A+Class size
- BYears serving families
- ADiversity
What stands out
- The only Montessori school in Altadena
- Smaller classes than 89% of Montessori schools in California
Oak Knoll Montessori School is a Montessori school in Altadena, California, for students from pre-K through 8th grade. It has about 51 students and around 2 students per teacher, smaller classes than 89% of Montessori elementary schools in California. Students attend about 7 hours a day, 180 days a year.
At a glance
- Grades
- Grades Pre-K–8
- Students
- 51
- Teachers
- 25 (full-time equivalent)
- Students per teacher
- 2
- Boys and girls
- Coed · 26 girls, 25 boys
- Religious affiliation
- None (nonsectarian)
- Program
- Montessori
- School day
- About 7 hours
- School year
- 180 days
Reviews
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How it compares
- Smaller classes than 89% of Montessori elementary schools in California (2 students per teacher).
- Larger than 69% of Montessori elementary schools in California.
- Compared with 119 Montessori elementary schools in California.
Students by grade
Student body
Member of
- Association Montessori Internationale
Questions to ask on a tour
- What is tuition, and what does it include (books, fees, uniforms, trips)?
- Do you offer financial aid, sibling discounts or payment plans?
- Do you accept ESA, voucher or tax-credit scholarship funds?
- How big are classes in my child's grade?
- What support is there for students who need extra help or more challenge?
- Is the school accredited, and by whom?
- What do a typical day and a typical week look like?
- How does the school communicate with families?
Questions about Oak Knoll Montessori School
What grades does Oak Knoll Montessori School serve?
Oak Knoll Montessori School serves grades Pre-K–8.
How many students attend Oak Knoll Montessori School?
About 51 students, with 2 students per teacher, according to official records.
How much is tuition at Oak Knoll Montessori School?
Call the school to ask about tuition, financial aid and payment plans.
Official record · Updated October 2026 · Official search · Something wrong? Tell us
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