Mills Montessori
Montessori school · Grades Pre-K–K
South San Francisco, CA
1400 Hillside Blvd, South San Francisco, CA 94080
Overall grade: A-
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- B+Class size
- B+Years serving families
What stands out
- Small classes: about 8 students per teacher
Mills Montessori is a Montessori school in South San Francisco, California, for students from pre-K through kindergarten. It has about 15 students and around 8 students per teacher. Students attend about 6 hours a day, 180 days a year.
At a glance
- Grades
- Grades Pre-K–K
- Students
- 15
- Teachers
- 2 (full-time equivalent)
- Students per teacher
- 7.5
- Boys and girls
- Coed · 6 girls, 9 boys
- Religious affiliation
- None (nonsectarian)
- Program
- Montessori
- School day
- About 6 hours
- School year
- 180 days
Reviews
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How it compares
- Larger than 69% of preschool programs in California.
- Compared with 372 preschool programs in California.
Students by survey year
Total students reported in official records since 2015–16.
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 Mills Montessori
What grades does Mills Montessori serve?
Mills Montessori serves grades Pre-K–K.
How many students attend Mills Montessori?
About 15 students, with 8 students per teacher, according to official records.
How much is tuition at Mills Montessori?
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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