Skip to main content

Very Good

#374 of 1,790 private schools in CA

Top 21% of private schools

Marin Primary & Middle School

Elementary School

20 MAGNOLIA AVE, Larkspur, CA 94939

Private Estimated Score

Estimated academic score. This school does not have standardized test data. Based on CA statewide data. Learn more

Enrollment

221

Student-Teacher

5.8:1

Score

7.2

Grades

Pre-K – 8th

Updated 2021-22

How this school compares

In Larkspur

#2 of 2

public schools

California elementary schools

#213 of 1,102

About Marin Primary & Middle School

Marin Primary & Middle School serves 221 students from pre-kindergarten through eighth grade in Larkspur, California. This regular public school stands out with an exceptional student-teacher ratio of 5.8 to 1, supported by 38 full-time equivalent teachers who can provide individualized attention to each child. The school has earned recognition for its academic excellence, receiving a 9.0 out of 10 rating from MySchoolScout and ranking #245 out of 1,790 schools statewide, placing it in the 86th percentile among California schools.

This strong performance reflects the school's commitment to educational quality across its pre-K through middle school program. Marin Primary & Middle School draws families from an affluent and highly educated community, where 76% of residents hold bachelor's degrees or higher and the median household income reaches $156,250. The neighborhood's low poverty rate of 6.9% and median home values exceeding $2 million reflect the area's prosperity and investment in education.

Located on Magnolia Avenue in this large suburban community of 7,488 residents, the school benefits from Larkspur's family-friendly atmosphere and strong educational values, creating an environment where academic achievement and community support go hand in hand.

What Parents Should Know

With a student-teacher ratio of 5.8:1, Marin Primary & Middle 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, Marin Primary & Middle 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
$57,261
Per-Pupil Revenue
Total revenue ÷ enrollment
$61,658
Financial Health
Revenue-to-expense ratio (>1.0 = surplus)
1.08x — Stable
Tuition Dependency
Share of revenue from program services (tuition, fees)
80%
Total Assets
End-of-year total assets from IRS filing
$37.3M

Financial data from IRS Form 990 filings via ProPublica Nonprofit Explorer. Per-pupil figures based on current enrollment of 221 students. Not all private schools file Form 990.

Compare to Public Schools

Beta

How Marin Primary & Middle School compares to the 4 public schools in Larkspur, CA

Student-Teacher Ratio
5.8:1
This School
vs
16.4:1
Public Avg
Avg School Size
221
This School
vs
605
Public Avg
Avg School Scout Rating
7.2
This School
vs
7.2
Public Avg

Student Demographics

White 77.4% vs 0%
Hispanic 3.2% vs 0%
Asian 0.9% vs 0%
Marin Primary & Middle School Larkspur Public Avg

All Schools in Larkspur

School Rating
Marin Primary & Middle School (this school) 7.2
San Andreas High (Continuation) 7.8
Tamiscal High (Alternative) 4.0
Hall Middle 8.4
Redwood High 8.5

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.

Classroom Attention
? Student-teacher ratio calibrated against other private schools. Lower ratios mean more individual attention. (30% of overall score)
A 9.1 / 10
View breakdown
Student-Teacher Ratio 5.8:1
Instructional Commitment
? Total annual instructional hours based on school day length and days per year. (15% of overall score)
B 6.3 / 10
View breakdown
School Day Length 7 hours
Annual Instructional Hours 1,225
Diversity & Inclusion
? Racial and ethnic diversity of the student body using Simpson's diversity index. (20% of overall score)
C+ 4.3 / 10
View breakdown
Diversity Index 37%
Community Context

Data Unavailable

School Profile
? Enrollment size and grade span breadth — indicators of program depth and peer community. (15% of overall score)
A- 8.1 / 10
View breakdown
Enrollment 221
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)

White 77.4%
Two or More 18.6%
Hispanic 3.2%
Asian 0.9%

Source: NCES Private School Survey (PSS)

Location

20 MAGNOLIA AVE, Larkspur, CA 94939

Nearby Alternatives

Families considering Marin Primary & Middle School may also want to explore other elementary schools in the area. Park Elementary (rated 9.0/10, 1.8 miles away, in nearby Mill Valley), which scores notably higher. Another option is TERRA MARIN SCHOOL (rated 7.9/10, 1.5 miles away, in nearby Mill Valley), which scores slightly higher. Additionally, Old Mill Elementary (rated 7.8/10, 1.9 miles away, in nearby Mill Valley), which scores slightly higher. For more schools in Larkspur, see our Larkspur schools guide .

Nearby Schools

20 within 2.3 mi
School Distance Rating
OAc San Francisco Larkspur 0.1 mi
Chronos Academy Lakspur 0.1 mi
ST PATRICK SCHOOL Larkspur 0.5 mi 7.2
San Andreas High (Continuation) Larkspur 0.6 mi 7.8
Tamiscal High (Alternative) Larkspur 0.6 mi 4.0
Neil Cummins Elementary Corte Madera 0.5 mi 5.9
Hall Middle Larkspur 0.7 mi 8.4
Redwood High Larkspur 0.8 mi 8.5
Edna Maguire Elementary Mill Valley 1.5 mi 6.4
MARIN CATHOLIC HIGH SCHOOL Kentfield 1.5 mi 5.3
TERRA MARIN SCHOOL Mill Valley 1.5 mi 7.9
Anthony G. Bacich Elementary Kentfield 1.6 mi 7.7
NORTH BRIDGE ACADEMY Mill Valley 1.7 mi 6.0
North Bridge Academy Mill Valley 1.7 mi
Park Elementary Mill Valley 1.8 mi 9.0
THE HELIX SCHOOL Mill Valley 1.8 mi
Adaline E. Kent Middle Kentfield 1.9 mi 9.1
Old Mill Elementary Mill Valley 1.9 mi 7.8
Mill Valley Middle Mill Valley 2.2 mi 8.6
MARIN HORIZON SCHOOL Mill Valley 2.3 mi 7.5

Neighborhood Census ACS (2019-2023)

Census data for ZIP 94939 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$182,743

Median Home Value

$2,000,001

Median Rent

$3,104/mo

Population

7,372

College Educated

76.2%

Homeownership

49.3%

Avg Commute

29.7 min

Poverty Rate

6.7%

Median Age

46.7

Community Profile

The community surrounding Marin Primary & Middle School has a median household income of $182,743. It is a well-educated community where 76% of adults hold a bachelor's degree or higher. The median home value in the area is $2,000,001, with a median rent of $3,104/month. The local poverty rate of 6.7% is relatively low. The average commute for residents is 30 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
Alvina Elementary Charter Caruthers, CA 7.2
Anatola Avenue Elementary Lake Balboa, CA 7.2
BETHANY CHRISTIAN SCHOOL Sierra Madre, CA 7.2
BRAWERMAN WEST ELEMENTARY OF WILSHIRE BLVD TEMPLE Los Angeles, CA 7.2
Ballico-Cressey Community Charter Ballico, CA 7.2
Barron Park Elementary Palo Alto, CA 7.2

Frequently Asked Questions

Common questions about Marin Primary & Middle School

What grades does Marin Primary & Middle School serve?

Marin Primary & Middle School serves students in grades Pre-K through 8th.

How many students attend Marin Primary & Middle School?

Marin Primary & Middle School has an enrollment of approximately 221 students.

What is the student-teacher ratio at Marin Primary & Middle School?

The student-teacher ratio at Marin Primary & Middle School is 5.8:1. A lower ratio generally means more individual attention per student. The national average is approximately 11:1 for private schools.

How does Marin Primary & Middle School rank in CA?

Marin Primary & Middle School is ranked #374 out of 1,790 private schools in CA.

What is Marin Primary & Middle School's MySchoolScout rating?

Marin Primary & Middle School has a composite rating of 7.2 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 Marin Primary & Middle School a private school?

Yes, Marin Primary & Middle 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 Marin Primary & Middle School a religious school?

No, Marin Primary & Middle School is a nonsectarian (non-religious) private school.

11 schools nearby View map →

Neighborhood Context

Walk Score
80 Very Walkable
Bike Score
63 Bikeable

Powered by Walk Score

FBI UCR. County-level only.

Quick Facts NCES PSS (SY 2021-22)

Grades
Pre-K – 8th
Enrollment
221
Gender Split
53% M / 47% F
Student-Teacher Ratio
5.8:1
Teachers (FTE)
38
Type
private
Coed Status
coed
Affiliation
Nonsectarian
School Day
7 hours
Days Per Year
175 days
Setting
Large Suburb
County
MARIN
Data Year
2022–2023

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 methodology

Related reading

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.