Average
#567 of 1,790 private schools in CA
Top 32% of private schools
Mount Tamalpais School
Elementary School
100 HARVARD AVE, Mill Valley, CA 94941
Estimated academic score. This school does not have standardized test data. Based on CA statewide data. Learn more
Enrollment
250
Student-Teacher
6.6:1
Score
6.9
Grades
T1 – 8th
Enrollment
250
Student-Teacher
6.6:1
Score
6.9
Grades
T1 – 8th
Updated
2021-22
Updated 2021-22
How this school compares
In Mill Valley
#3 of 4
public schools
California elementary schools
#309 of 1,102
About Mount Tamalpais School
Mount Tamalpais School serves 250 students from transitional kindergarten through eighth grade in Mill Valley, California. This public elementary school operates with an exceptionally low student-teacher ratio of 6.6 to 1, supported by 38 full-time equivalent teachers who can provide individualized attention to their students. The school has earned a strong 9.0 out of 10 rating from MySchoolScout and ranks in the 52nd percentile among California elementary schools, placing it at #854 out of 1,790 schools statewide.
This solid performance reflects the school's commitment to providing quality education in a supportive learning environment. Mount Tamalpais School sits in the heart of Mill Valley, a highly educated community where 78% of residents hold bachelor's degrees or higher. The surrounding neighborhood features a median household income of $206,580 and median home values of nearly $1.8 million, with a low poverty rate of just 5.5%.
This affluent area of 32,190 residents creates a stable educational environment with strong community support. The school is positioned in a large suburban setting that offers students access to both academic resources and the natural beauty that defines the Mill Valley area, nestled in the shadow of Mount Tamalpais itself.
What Parents Should Know
With a student-teacher ratio of 6.6:1, Mount Tamalpais 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, Mount Tamalpais 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 (2023 filing)
- Per-Pupil Spending
- Total expenses ÷ enrollment
- $48,261
- Per-Pupil Revenue
- Total revenue ÷ enrollment
- $55,205
- Financial Health
- Revenue-to-expense ratio (>1.0 = surplus)
- 1.14x — Strong
- Tuition Dependency
- Share of revenue from program services (tuition, fees)
- 75%
- Total Assets
- End-of-year total assets from IRS filing
- $27.4M
Financial data from IRS Form 990 filings via ProPublica Nonprofit Explorer. Per-pupil figures based on current enrollment of 250 students. Not all private schools file Form 990.
Compare to Public Schools
BetaHow Mount Tamalpais School compares to 7 public schools serving similar grades in Mill Valley, CA
Student Demographics
Nearby Elementary Schools
| School | Rating |
|---|---|
| Mount Tamalpais School (this school) | 6.9 |
| Tamalpais High | 8.8 |
| Mill Valley Middle | 8.6 |
| Park Elementary | 9.0 |
| Tamalpais Valley Elementary | 9.3 |
| Edna Maguire Elementary | 6.4 |
| Old Mill Elementary | 7.8 |
| Strawberry Point Elementary | 8.9 |
Demographics sourced from NCES Private School Survey (PSS) and Common Core of Data (CCD). Comparisons are based on enrollment-weighted averages.
Score Breakdown
What This Rating Measures
This rating reflects classroom size, instructional time, student diversity, community resources, and school characteristics. Private schools are ranked against other private schools in CA.
Data Unavailable
View data sources
Score basis: Private school model
Data coverage: 80% of scoring components had data
Components scored: 4 of 5
Ranking pool: Private schools in CA
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 HARVARD AVE, Mill Valley, CA 94941
Nearby Alternatives
Families considering Mount Tamalpais School may also want to explore other elementary schools in the area. Tamalpais Valley Elementary (rated 9.3/10, 1.1 miles away), which scores notably higher. Another option is Park Elementary (rated 9.0/10, 1.0 miles away), which scores notably higher. Additionally, Dr. Martin Luther King Jr. Academy (rated 8.9/10, 1.6 miles away, in nearby Sausalito), which scores notably higher. For more schools in Mill Valley, see our Mill Valley schools guide .
Nearby Schools
20 within 2.8 mi| School | Distance | Rating |
|---|---|---|
| Mount Tamalpais School Mill Valley | 0.0 mi | — |
| Tamalpais High Mill Valley | 0.3 mi | 8.8 |
| Terra Marin School Mill Valley | 0.5 mi | — |
| Mill Valley Middle Mill Valley | 0.6 mi | 8.6 |
| MARIN HORIZON SCHOOL Mill Valley | 0.8 mi | 7.5 |
| Marin Horizon School Mill Valley | 0.8 mi | — |
| Park Elementary Mill Valley | 1.0 mi | 9.0 |
| Tamalpais Valley Elementary Mill Valley | 1.1 mi | 9.3 |
| THE HELIX SCHOOL Mill Valley | 1.1 mi | — |
| Edna Maguire Elementary Mill Valley | 1.4 mi | 6.4 |
| TERRA MARIN SCHOOL Mill Valley | 1.4 mi | 7.9 |
| North Bridge Academy Mill Valley | 1.4 mi | — |
| NORTH BRIDGE ACADEMY Mill Valley | 1.4 mi | 6.0 |
| Dr. Martin Luther King Jr. Academy Sausalito | 1.6 mi | 8.9 |
| Old Mill Elementary Mill Valley | 1.6 mi | 7.8 |
| Strawberry Point Elementary Mill Valley | 1.7 mi | 8.9 |
| THE NEW VILLAGE SCHOOL Sausalito | 2.0 mi | 6.0 |
| The New Village School Sausalito | 2.0 mi | — |
| Lycee Francais de San Francisco (Sausalito) Sausalito | 2.1 mi | — |
| MARIN PRIMARY & MIDDLE SCHOOL Larkspur | 2.8 mi | 7.2 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 94941 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$210,217
Median Home Value
$1,990,100
Median Rent
$2,949/mo
Population
32,349
College Educated
76.9%
Homeownership
66.6%
Avg Commute
27.5 min
Poverty Rate
5.4%
Median Age
45.6
Community Profile
The community surrounding Mount Tamalpais School has a median household income of $210,217. It is a well-educated community where 77% of adults hold a bachelor's degree or higher. The median home value in the area is $1,990,100, with a median rent of $2,949/month. The local poverty rate of 5.4% is relatively low. The average commute for residents is 28 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Anne Darling Elementary San Jose, CA | 6.9 |
| Aurora Elementary Los Angeles, CA | 6.9 |
| BLUE OAK SCHOOL Napa, CA | 6.9 |
| Bridge Street Elementary Los Angeles, CA | 6.9 |
| CARDEN CONEJO SCHOOL Westlake Village, CA | 6.9 |
| CORNERSTONE CHRISTIAN SCHOOLS Camarillo, CA | 6.9 |
Frequently Asked Questions
Common questions about Mount Tamalpais School
What grades does Mount Tamalpais School serve?
Mount Tamalpais School serves students in grades T1 through 8th.
How many students attend Mount Tamalpais School?
Mount Tamalpais School has an enrollment of approximately 250 students.
What is the student-teacher ratio at Mount Tamalpais School?
The student-teacher ratio at Mount Tamalpais School is 6.6:1. A lower ratio generally means more individual attention per student. The national average is approximately 11:1 for private schools.
How does Mount Tamalpais School rank in CA?
Mount Tamalpais School is ranked #567 out of 1,790 private schools in CA.
What is Mount Tamalpais School's MySchoolScout rating?
Mount Tamalpais School has a composite rating of 6.9 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.
Is Mount Tamalpais School a private school?
Yes, Mount Tamalpais 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 Mount Tamalpais School a religious school?
No, Mount Tamalpais School is a nonsectarian (non-religious) private school.
Explore More Schools
Neighborhood Context
- City Safety
- Elevated (1,120/100K)
FBI UCR 2024. City-level (Mill Valley). Data >1 year old.
Quick Facts NCES PSS (SY 2021-22)
- Grades
- T1 – 8th
- Enrollment
- 250
- Gender Split
- 46% M / 54% F
- Student-Teacher Ratio
- 6.6:1
- Teachers (FTE)
- 38
- Type
- private
- Coed Status
- coed
- Affiliation
- Nonsectarian
- School Day
- 7 hours
- Days Per Year
- 173 days
- Setting
- Large Suburb
- County
- MARIN
- Phone
- (415) 254-8304
- 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
- Best Schools in Los Angeles, CA — 2026 Rankingsbest schools
- Best Schools in San Diego, CA — 2026 Rankingsbest schools
Get school insights in your inbox
New rankings, best-schools lists, and parent guides — delivered free. No spam, unsubscribe anytime.
We respect your privacy. Unsubscribe at any time.