Skip to main content

Very Good

#135 of 1,790 private schools in CA

Top 8% of private schools

The Bay School of San Francisco

High School

35 KEYES AVE, San Francisco, CA 94129

Private Estimated Score

Estimated academic score. This school does not have standardized test data. Based on 114 schools in San Francisco. Learn more

Enrollment

435

Student-Teacher

7.6:1

Score

7.8

Grades

9th – 12th

Updated 2021-22

How this school compares

In San Francisco

#10 of 74

public schools

California high schools

#28 of 277

About The Bay School of San Francisco

The Bay School of San Francisco serves 435 students in grades 9 through 12 on Keyes Avenue in the heart of San Francisco. This public high school stands out with an exceptionally low student-teacher ratio of 7.6 to 1, supported by 57 full-time equivalent teachers who can provide personalized attention to students. The school has earned recognition for its academic excellence, earning a 9.0 out of 10 rating from MySchoolScout and ranking #362 out of 1,790 high schools statewide, placing it in the 80th percentile among California schools.

This strong performance reflects the school's commitment to providing quality education in a more intimate learning environment than typical public high schools. With fewer than 450 students, The Bay School offers the advantages of a smaller school community where students can build meaningful relationships with teachers and peers while still accessing the resources of a public education system. The remarkably low student-teacher ratio suggests opportunities for individualized instruction and support that can help students reach their academic potential.

The Bay School is situated in San Francisco's dynamic urban environment, giving students access to the cultural, educational, and professional opportunities that come with attending school in one of California's most vibrant cities.

What Parents Should Know

With a student-teacher ratio of 7.6:1, The Bay School of San Francisco 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, The Bay School of San Francisco 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
$64,316
Per-Pupil Revenue
Total revenue ÷ enrollment
$67,653
Financial Health
Revenue-to-expense ratio (>1.0 = surplus)
1.05x — Stable
Tuition Dependency
Share of revenue from program services (tuition, fees)
89%
Total Assets
End-of-year total assets from IRS filing
$73.0M

Financial data from IRS Form 990 filings via ProPublica Nonprofit Explorer. Per-pupil figures based on current enrollment of 435 students. Not all private schools file Form 990.

Compare to Public Schools

Beta

How The Bay School of San Francisco compares to 27 public schools serving similar grades in San Francisco, CA

Student-Teacher Ratio
7.6:1
This School
vs
20:1
Public Avg
Avg School Size
435
This School
vs
747
Public Avg
Avg School Scout Rating
7.8
This School
vs
7.0
Public Avg

Student Demographics

White 50.6% vs 0%
Asian 23% vs 0%
Hispanic 5.7% vs 0%
Black 4.6% vs 0%
The Bay School of San Francisco San Francisco Public Avg

Nearby High Schools

School Rating
The Bay School of San Francisco (this school) 7.8
Wallenberg (Raoul) Traditional High 6.6
Gateway High 8.5
Galileo High 8.5
Wells (Ida B.) High 6.0
S.F. County Civic Center Secondary 7.5
Washington (George) High 9.2
Independence High 7.8
Mission High 4.7
Five Keys Charter (SF Sheriff's) 5.6
Five Keys Independence HS (SF Sheriff's) 5.5
O'Connell (John) High 6.6
S.F. County Court Woodside Learning Ctr
Asawa (Ruth) SF Sch of the Arts A Public School 9.3
Academy (The)- SF @McAteer 7.3
Downtown High 5.4
Lincoln (Abraham) High 7.9
S.F. International High 5.4
S.F. County Opportunity (Hilltop) 7.5
S.F. County Special Education 5.2
Life Learning Academy Charter

Showing 20 of 27 schools. View all schools in San Francisco

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- 8.3 / 10
View breakdown
Student-Teacher Ratio 7.6:1
Instructional Commitment
? Total annual instructional hours based on school day length and days per year. (15% of overall score)
B 5.8 / 10
View breakdown
School Day Length 7 hours
Annual Instructional Hours 1,211
Diversity & Inclusion
? Racial and ethnic diversity of the student body using Simpson's diversity index. (20% of overall score)
A- 8.2 / 10
View breakdown
Diversity Index 66%
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 435
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 50.6%
Asian 23.0%
Two or More 13.8%
Hispanic 5.7%
Black 4.6%
Native American 1.1%
Pacific Islander 1.1%

Source: NCES Private School Survey (PSS)

Location

35 KEYES AVE, San Francisco, CA 94129

Nearby Alternatives

Families considering The Bay School of San Francisco may also want to explore other high schools in the area. SAN FRANCISCO UNIVERSITY HIGH SCHOOL (rated 7.4/10, 0.9 miles away), with a comparable rating. Another option is DREW SCHOOL (rated 6.2/10, 1.2 miles away), a more accessible option. Additionally, ACADEMY OF THOUGHT AND INDUSTRY (rated 5.1/10, 1.1 miles away), a more accessible option. For more schools in San Francisco, see our San Francisco schools guide .

Nearby Schools

20 within 1.3 mi
School Distance Rating
The Bay School of San Francisco San Francisco 0.0 mi
Presidio Hill School San Francisco 0.8 mi
PRESIDIO HILL SCHOOL San Francisco 0.8 mi 7.3
Lilienthal (Claire) Elementary San Francisco 0.7 mi 9.0
San Francisco University High School San Francisco 0.9 mi
SAN FRANCISCO UNIVERSITY HIGH SCHOOL San Francisco 0.9 mi 7.4
San Francisco Waldorf School San Francisco 1.0 mi
SAN FRANCISCO WALDORF SCHOOL San Francisco 1.0 mi 7.2
Hillwood Academic Day San Francisco 1.0 mi
HILLWOOD ACADEMIC DAY SCHOOL San Francisco 1.0 mi
TOWN SCHOOL FOR BOYS San Francisco 1.0 mi 7.6
Town School for Boys San Francisco 1.1 mi
ST VINCENT DE PAUL SCHOOL San Francisco 1.0 mi 6.1
ACADEMY OF THOUGHT AND INDUSTRY San Francisco 1.1 mi 5.1
Drew School San Francisco 1.2 mi
DREW SCHOOL San Francisco 1.2 mi 6.2
Roosevelt Middle San Francisco 1.3 mi 7.8
Peabody (George) Elementary San Francisco 1.3 mi 7.5
Marina Middle San Francisco 1.1 mi 7.1
Cobb (William L.) Elementary San Francisco 1.3 mi 9.0

Neighborhood Census ACS (2019-2023)

Census data for ZIP 94129 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$236,190

Median Rent

$3,501/mo

Population

3,808

College Educated

85.3%

Homeownership

0%

Avg Commute

28.6 min

Poverty Rate

0.7%

Median Age

34.2

Community Profile

The community surrounding The Bay School of San Francisco has a median household income of $236,190. It is a well-educated community where 85% of adults hold a bachelor's degree or higher. The local poverty rate of 0.7% is relatively low. The average commute for residents is 29 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
Alliance Marc & Eva Stern Math and Science Los Angeles, CA 7.8
Alliance Ted K. Tajima High Los Angeles, CA 7.8
Mammoth High Mammoth Lakes, CA 7.8
Pacific Grove High Pacific Grove, CA 7.8
Shasta Charter Academy Redding, CA 7.8
Silver Valley High Yermo, CA 7.8

Frequently Asked Questions

Common questions about The Bay School of San Francisco

What grades does The Bay School of San Francisco serve?

The Bay School of San Francisco serves students in grades 9th through 12th.

How many students attend The Bay School of San Francisco?

The Bay School of San Francisco has an enrollment of approximately 435 students.

What is the student-teacher ratio at The Bay School of San Francisco?

The student-teacher ratio at The Bay School of San Francisco is 7.6:1. A lower ratio generally means more individual attention per student. The national average is approximately 11:1 for private schools.

How does The Bay School of San Francisco rank in CA?

The Bay School of San Francisco is ranked #135 out of 1,790 private schools in CA.

What is The Bay School of San Francisco's MySchoolScout rating?

The Bay School of San Francisco has a composite rating of 7.8 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 The Bay School of San Francisco a private school?

Yes, The Bay School of San Francisco 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 The Bay School of San Francisco a religious school?

No, The Bay School of San Francisco is a nonsectarian (non-religious) private school.

11 schools nearby View map →

Neighborhood Context

Walk Score
65 Somewhat Walkable
Transit Score
58 Good Transit
Bike Score
84 Very Bikeable
City Safety
High (4,559/100K)

Powered by Walk Score

FBI UCR 2024. City-level (San Francisco). Data >1 year old.

Quick Facts NCES PSS (SY 2021-22)

Grades
9th – 12th
Enrollment
435
Gender Split
46% M / 54% F
Student-Teacher Ratio
7.6:1
Teachers (FTE)
57
Type
private
Coed Status
coed
Affiliation
Nonsectarian
School Day
7 hours
Days Per Year
173 days
Setting
Large City
County
SAN FRANCISCO
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.