Princeton Montessori School
Montessori school · Grades Pre-K–K
Altadena, CA
922 E Mendocino St, Altadena, CA 91001
Overall grade: A-
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- AClass size
- B-Years serving families
What stands out
- Smaller classes than 78% of preschools in California
In Altadena, California, Princeton Montessori School is a Montessori school for students from pre-K through kindergarten. About 12 students attend, with roughly 2 students per teacher, smaller classes than 78% of preschool programs in California. The school day runs about 10 hours, 260 days a year.
At a glance
- Grades
- Grades Pre-K–K
- Students
- 12
- Teachers
- 7 (full-time equivalent)
- Students per teacher
- 1.7
- Boys and girls
- Coed · 7 girls, 5 boys
- Religious affiliation
- None (nonsectarian)
- Program
- Montessori
- School day
- About 10 hours
- School year
- 260 days
- Library
- Yes
Reviews
Be the first to share what you love about Princeton Montessori School.
How it compares
- Smaller classes than 78% of preschool programs in California (2 students per teacher).
- Larger than 59% of preschool programs in California.
- Compared with 372 preschool programs in California.
Students by grade
Student body
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 Princeton Montessori School
What grades does Princeton Montessori School serve?
Princeton Montessori School serves grades Pre-K–K.
How many students attend Princeton Montessori School?
About 12 students, with 2 students per teacher, according to official records.
How much is tuition at Princeton 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
Other private schools nearby
Sahag-Mesrob Armenian Christian School
Christian school (nondenominational) · Grades Pre-K–8
The only Christian school in Altadena
Altadena, CA0.3 mi
Meher Montessori School
Montessori school · Grades Pre-K–K
Smaller classes than 87% of preschools in California
Altadena, CA0.4 mi
St. Elizabeth School
Parish school · Grades K–8
The only Catholic school in Altadena
Altadena, CA0.6 mi
Pasadena Waldorf School
Independent school · Grades Pre-K–12
The smallest classes of any independent school in Altadena
Altadena, CA0.9 mi
Fair Oaks School
Independent school · Grades K–5
Smaller classes than 82% of independent schools in California
Altadena, CA1.1 mi
Ef Academy
Independent school · Grades 9–12
Small classes: about 8 students per teacher
Pasadena, CA1.1 mi