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Average

#626 of 1,790 private schools in CA

Top 35% of private schools

Marlborough School

High School

250 S ROSSMORE AVE, Los Angeles, CA 90004

Private Estimated Score

Estimated academic score. This school does not have standardized test data. Based on 549 schools in Los Angeles. Learn more

Enrollment

560

Student-Teacher

6.8:1

Score

6.7

Grades

7th – 12th

Updated 2021-22

How this school compares

In Los Angeles

#43 of 137

public schools

California high schools

#121 of 277

About Marlborough School

Marlborough School serves 560 students in grades 7-12 in Los Angeles, offering an impressive educational experience with exceptional individual attention. With 82 full-time equivalent teachers, the school maintains an outstanding 6.8:1 student-teacher ratio, ensuring personalized support for each student's academic journey. The school has earned recognition as one of California's top performers, ranking #138 out of 1,790 schools statewide and placing in the 92nd percentile.

This achievement reflects the school's commitment to academic excellence and has earned it a strong 9.0 out of 10 rating from MySchoolScout. Students at Marlborough benefit from small class sizes that foster meaningful relationships between educators and learners. The intimate learning environment allows teachers to tailor instruction to individual student needs and provide comprehensive support throughout the middle and high school years.

Located on South Rossmore Avenue, the school sits in a diverse Los Angeles neighborhood where 38% of residents hold bachelor's degrees or higher. The area reflects the economic diversity typical of urban communities, with median household incomes of $58,420 and a mix of housing options. Marlborough School operates within this dynamic large city setting, drawing from the rich cultural and educational opportunities that Los Angeles provides.

What Parents Should Know

With a student-teacher ratio of 6.8:1, Marlborough 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, Marlborough 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
$73,118
Per-Pupil Revenue
Total revenue ÷ enrollment
$61,748
Financial Health
Revenue-to-expense ratio (>1.0 = surplus)
0.84x — At Risk
Tuition Dependency
Share of revenue from program services (tuition, fees)
91%
Total Assets
End-of-year total assets from IRS filing
$202.4M

Financial data from IRS Form 990 filings via ProPublica Nonprofit Explorer. Per-pupil figures based on current enrollment of 560 students. Not all private schools file Form 990.

Compare to Public Schools

Beta

How Marlborough School compares to 282 public schools serving similar grades in Los Angeles, CA

Student-Teacher Ratio
6.8:1
This School
vs
18.9:1
Public Avg
Avg School Size
560
This School
vs
554
Public Avg
Avg School Scout Rating
6.7
This School
vs
6.9
Public Avg

Student Demographics

White 52.3% vs 0%
Asian 16.1% vs 0%
Hispanic 5.9% vs 0%
Black 5.7% vs 0%
Marlborough School Los Angeles Public Avg

Nearby High Schools

School Rating
Marlborough School (this school) 6.7
John Burroughs Middle 8.9
Los Angeles Senior High 5.1
Magnolia Science Academy 6 8.8
Girls Academic Leadership Acad Dr. Michelle King Sch STEM 9.2
Hubert Howe Bancroft Middle 7.2
Pio Pico Middle 7.5
UCLA Community K-12 6.7
Richard A. Alonzo Community Day 6.4
Los Angeles High School of the Arts 8.9
School for the Visual Arts and Humanities 7.3
Ambassador-Global Leadership 6.0
New Open World Academy K-12 5.3
Johnnie Cochran Jr. Middle 6.4
Whitman Continuation 8.0
Virgil Middle 8.7
Fairfax Senior High 7.1
Young Oak Kim Academy 8.0
Hollywood Senior High 8.7
Camino Nuevo Charter Academy #2 3.6
Everest Value 8.6

Showing 20 of 282 schools. View all schools in Los Angeles

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 8.6 / 10
View breakdown
Student-Teacher Ratio 6.8:1
Instructional Commitment
? Total annual instructional hours based on school day length and days per year. (15% of overall score)
C- 2.1 / 10
View breakdown
School Day Length 6.5 hours
Annual Instructional Hours 1,040
Diversity & Inclusion
? Racial and ethnic diversity of the student body using Simpson's diversity index. (20% of overall score)
A- 8.0 / 10
View breakdown
Diversity Index 65%
Community Context

Data Unavailable

School Profile
? Enrollment size and grade span breadth — indicators of program depth and peer community. (15% of overall score)
B 5.7 / 10
View breakdown
Enrollment 560
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 52.3%
Two or More 19.8%
Asian 16.1%
Hispanic 5.9%
Black 5.7%
Native American 0.2%

Source: NCES Private School Survey (PSS)

Location

250 S ROSSMORE AVE, Los Angeles, CA 90004

Nearby Alternatives

Families considering Marlborough School may also want to explore other high schools in the area. Girls Academic Leadership Acad Dr. Michelle King Sch STEM (rated 9.2/10, 1.0 miles away), which scores notably higher. Another option is BNOS ESTHER H.S. (rated 5.4/10, 1.0 miles away), a more accessible option. Additionally, Los Angeles Senior High (rated 5.1/10, 1.0 miles away), a more accessible option. For more schools in Los Angeles, see our Los Angeles schools guide .

Nearby Schools

20 within 1.0 mi
School Distance Rating
Marlborough School Los Angeles 0.0 mi
Third Street Elementary Los Angeles 0.5 mi 9.6
Samuel A. Fryer Yavneh Hebrew Los Angeles 0.5 mi
PAGE ACADEMY-HANCOCK PARK Los Angeles 0.8 mi 8.1
Page Private-Hancock Park Los Angeles 0.8 mi
John Burroughs Middle Los Angeles 0.7 mi 8.9
CHRIST THE KING SCHOOL Los Angeles 0.8 mi 6.0
Windsor Math and Science Academy Los Angeles 0.8 mi
Wilshire Park Elementary Los Angeles 0.9 mi 8.1
Los Angeles Senior High Los Angeles 1.0 mi 5.1
Van Ness Avenue Elementary Los Angeles 1.0 mi 8.9
Girls Academic Leadership Acad Dr. Michelle King Sch STEM Los Angeles 1.0 mi 9.2
Magnolia Science Academy 6 Los Angeles 1.0 mi 8.8
Wilton Place Elementary Los Angeles 1.0 mi 7.4
ST JAMES EPISCOPAL SCHOOL Los Angeles 1.0 mi 7.3
St. James' Episcopal School Los Angeles 1.0 mi
St. Brendan Los Angeles 1.0 mi
ST BRENDAN CATHOLIC SCHOOL Los Angeles 1.0 mi 6.1
BNOS ESTHER H.S. Los Angeles 1.0 mi 5.4
Champion of Life Academy Los Angeles 1.0 mi

Neighborhood Census ACS (2019-2023)

Census data for ZIP 90004 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$62,655

Median Home Value

$1,457,200

Median Rent

$1,752/mo

Population

58,844

College Educated

40%

Homeownership

16.9%

Avg Commute

31.6 min

Poverty Rate

18.8%

Median Age

36.8

Community Profile

The community surrounding Marlborough School has a median household income of $62,655. It is a well-educated community where 40% of adults hold a bachelor's degree or higher. The median home value in the area is $1,457,200, with a median rent of $1,752/month. The area has a poverty rate of 18.8%. The average commute for residents is 32 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
Firebaugh High Firebaugh, CA 6.7
GEFFEN ACADEMY AT UCLA Los Angeles, CA 6.7
Leadership Public Schools - Hayward Oakland, CA 6.7
MARIN ACADEMY San Rafael, CA 6.7
MILKEN COMMUNITY MIDDLE SCHOOL Los Angeles, CA 6.7
Rancho Dominguez Preparatory Long Beach, CA 6.7

Frequently Asked Questions

Common questions about Marlborough School

What grades does Marlborough School serve?

Marlborough School serves students in grades 7th through 12th.

How many students attend Marlborough School?

Marlborough School has an enrollment of approximately 560 students.

What is the student-teacher ratio at Marlborough School?

The student-teacher ratio at Marlborough School is 6.8:1. A lower ratio generally means more individual attention per student. The national average is approximately 11:1 for private schools.

How does Marlborough School rank in CA?

Marlborough School is ranked #626 out of 1,790 private schools in CA.

What is Marlborough School's MySchoolScout rating?

Marlborough School has a composite rating of 6.7 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 Marlborough School a private school?

Yes, Marlborough School is a private all-girls 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 Marlborough School a religious school?

No, Marlborough School is a nonsectarian (non-religious) private school.

11 schools nearby View map →

Neighborhood Context

City Safety
High (2,223/100K)

FBI UCR 2024. City-level (Los Angeles). Data >1 year old.

Quick Facts NCES PSS (SY 2021-22)

Grades
7th – 12th
Enrollment
560
Gender Split
0% M / 100% F
Student-Teacher Ratio
6.8:1
Teachers (FTE)
82
Type
private
Coed Status
all-girls
Affiliation
Nonsectarian
School Day
6.5 hours
Days Per Year
160 days
Setting
Large City
County
LOS ANGELES
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

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