Limited Profile
Not enough data to generate a rating
San Anselmo Montessori School
Elementary School
100 SHAW DR, San Anselmo, CA 94979
Enrollment
3
Student-Teacher
3:1
Grades
Pre-K – Kindergarten
Enrollment
3
Student-Teacher
3:1
Grades
Pre-K – Kindergarten
Updated
2021-22
Updated 2021-22
About San Anselmo Montessori School
San Anselmo Montessori School is an private elementary school in San Anselmo, CA 94979. The school serves approximately 3 students in grades Pre-K – Kindergarten with a student-teacher ratio of 3:1. The school is situated in a large suburban setting.
What Parents Should Know
With an enrollment of 3 students, San Anselmo Montessori School is a smaller school where families often find a close-knit community atmosphere. Smaller settings can mean more individual attention from teachers and staff, though they may offer fewer extracurricular options than larger schools.
With a student-teacher ratio of 3:1, San Anselmo Montessori School offers a notably low ratio compared to the national average. This typically means smaller class sizes and more opportunities for one-on-one interaction between students and teachers.
As a private school, San Anselmo Montessori School operates independently from the local public school district. Families considering this school should inquire about tuition costs, financial aid availability, and the admissions process. Private schools are not required to follow the same curriculum standards as public schools, which can be either an advantage or a consideration depending on your priorities.
Financial Overview
Source: IRS Form 990 (2024 filing)
- Per-Pupil Spending
- Total expenses ÷ enrollment
- $256,654
- Per-Pupil Revenue
- Total revenue ÷ enrollment
- $275,316
- Financial Health
- Revenue-to-expense ratio (>1.0 = surplus)
- 1.07x — Stable
- Tuition Dependency
- Share of revenue from program services (tuition, fees)
- 93%
- Total Assets
- End-of-year total assets from IRS filing
- $1.2M
Financial data from IRS Form 990 filings via ProPublica Nonprofit Explorer. Per-pupil figures based on current enrollment of 3 students. Not all private schools file Form 990.
Compare to Public Schools
BetaHow San Anselmo Montessori School compares to the 4 public schools in San Anselmo, CA
Student Demographics
All Schools in San Anselmo
| School | Rating |
|---|---|
| San Anselmo Montessori School (this school) | — |
| Archie Williams High | 6.8 |
| Wade Thomas Elementary | 6.9 |
| Brookside Elementary | 7.6 |
| Hidden Valley Elementary | 8.8 |
Demographics sourced from NCES Private School Survey (PSS) and Common Core of Data (CCD). Comparisons are based on enrollment-weighted averages.
School Profile
Limited Data- Grades
- Pre-K – Kindergarten
- Enrollment
- 3 students
- Type
- Private
- Student-Teacher Ratio
- 3:1
- Address
- 100 SHAW DR, San Anselmo, CA 94979
- Phone
- (415) 457-3428
- Data Year
- SY 2021-22
Why doesn't this school have a score?
We don't have enough verified data to rate this school fairly. Private schools in CA aren't required to report standardized test scores to the state, which limits the data available for our rating model.
Our rating model requires at least 2 of 3 data components (academics, student progress, college readiness, and resources) to generate a meaningful score. Schools below this threshold receive a Limited Profile to avoid misleading ratings.
Test Scores
Test score data not yet available for this school.
Student Demographics NCES PSS (SY 2021-22)
Source: NCES Private School Survey (PSS)
Location
100 SHAW DR, San Anselmo, CA 94979
Nearby Alternatives
Families considering San Anselmo Montessori School may also want to explore other elementary schools in the area. Ross Elementary (rated 9.3/10, 1.4 miles away, in nearby Ross). Another option is Hidden Valley Elementary (rated 8.8/10, 1.8 miles away). Additionally, Sun Valley Elementary (rated 7.6/10, 0.6 miles away, in nearby San Rafael). For more schools in San Anselmo, see our San Anselmo schools guide .
Nearby Schools
20 within 1.7 mi| School | Distance | Rating |
|---|---|---|
| Irene M. Hunt School / Side by Side San Anselmo | 0.1 mi | — |
| OAK HILL SCHOOL San Anselmo | 0.1 mi | 6.3 |
| IRINE M HUNT SCHOOL OF MARIN San Anselmo | 0.1 mi | 6.2 |
| CHRONOS ACADEMY San Anselmo | 0.3 mi | — |
| Sun Valley Elementary San Rafael | 0.6 mi | 7.6 |
| St. Anselm School San Anselmo | 0.8 mi | — |
| Archie Williams High San Anselmo | 0.6 mi | 6.8 |
| Wade Thomas Elementary San Anselmo | 0.8 mi | 6.9 |
| THE BRANSON SCHOOL Ross | 1.1 mi | 7.0 |
| Brookside Elementary San Anselmo | 1.0 mi | 7.6 |
| The Branson School Ross | 1.2 mi | — |
| Terra Linda High San Rafael | 1.3 mi | 8.5 |
| Ross Elementary Ross | 1.4 mi | 9.3 |
| MARK DAY SCHOOL San Rafael | 1.8 mi | 6.6 |
| Mark Day School San Rafael | 1.8 mi | — |
| Vallecito Elementary San Rafael | 1.8 mi | 6.3 |
| MARIN ACADEMY San Rafael | 1.5 mi | 6.7 |
| Hidden Valley Elementary San Anselmo | 1.8 mi | 8.8 |
| Saint Isabella School San Rafael | 2.0 mi | — |
| LINDAMOOD-BELL LEARNING PROCESSES SAN RAFAEL San Rafael | 1.7 mi | — |
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| ACADEMY OF LEARNERS CDC LLC Linden, CA | — |
| ARCADIA MONTESSORI SCHOOL Arcadia, CA | — |
| BAYSIDE MONTESSORI ASSOCIATION Alameda, CA | — |
| BRIGHT CHILDREN MONTESSORI ACADEMY Alhambra, CA | — |
| BRIGHT MONTESSORI SCHOOL INC. Los Angeles, CA | — |
| BRIGHT STARS ACADEMY Oxnard, CA | — |
Frequently Asked Questions
Common questions about San Anselmo Montessori School
What grades does San Anselmo Montessori School serve?
San Anselmo Montessori School serves students in grades Pre-K through Kindergarten.
How many students attend San Anselmo Montessori School?
San Anselmo Montessori School has an enrollment of approximately 3 students.
What is the student-teacher ratio at San Anselmo Montessori School?
The student-teacher ratio at San Anselmo Montessori School is 3:1. A lower ratio generally means more individual attention per student. The national average is approximately 11:1 for private schools.
Is San Anselmo Montessori School a private school?
Yes, San Anselmo Montessori School is a private coeducational school with a Nonsectarian affiliation. Private schools are not required to participate in state standardized testing, so academic performance data may be limited compared to public schools.
Is San Anselmo Montessori School a religious school?
No, San Anselmo Montessori School is a nonsectarian (non-religious) private school.
Explore More Schools
Quick Facts NCES PSS (SY 2021-22)
- Grades
- Pre-K – Kindergarten
- Enrollment
- 3
- Gender Split
- 67% M / 33% F
- Student-Teacher Ratio
- 3:1
- Teachers (FTE)
- 1
- Type
- private
- Coed Status
- coed
- Affiliation
- Nonsectarian
- School Day
- 5.5 hours
- Days Per Year
- 180 days
- Setting
- Large Suburb
- County
- MARIN
- Phone
- (415) 457-3428
- Data Year
- 2022–2023
Resources & Links
How We Rate Schools
Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
Read our full methodologyRelated reading
- Best Elementary Schools in America: 2026 Rankingsbest schools
- Best Public Schools in California 2026: Top-Ranked Elementary, Middle & High Schoolsbest schools
- Best School Districts to Move To in 2026: A Data-Driven Guidebest schools
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