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#1419 of 1,790 private schools in CA

Junipero Serra High School

High School

451 W 20TH AVE, San Mateo, CA 94403

Private Estimated Score

Estimated academic score. This school does not have standardized test data. Based on 19 schools in San Mateo. Learn more

Enrollment

860

Student-Teacher

15.8:1

Score

5.3

Grades

9th – 12th

Updated 2021-22

How this school compares

In San Mateo

#11 of 12

public schools

California high schools

#233 of 277

About Junipero Serra High School

Junipero Serra High School serves 860 students in grades 9-12 in San Mateo, California. With 55 full-time equivalent teachers, the school maintains a student-teacher ratio of 15.8:1, providing students with reasonably personalized attention in their high school experience. The school has earned a MySchoolScout rating of 7.2 out of 10 and ranks #1340 out of 1790 California high schools, placing it in the 25th percentile statewide.

While this indicates room for academic growth, the school continues to focus on supporting its students' educational development during these important formative years. Junipero Serra High School is situated in an affluent community where the median household income reaches $171,213 and the median home value is $1,681,500. The surrounding neighborhood demonstrates a strong commitment to education, with 61% of residents holding bachelor's degrees or higher.

The area maintains a low poverty rate of just 6.1%, reflecting the economic stability of the community. As a regular public high school in San Mateo's mid-size city environment, Junipero Serra High School benefits from being part of a well-educated, prosperous community that values academic achievement and provides a supportive backdrop for students' high school journey.

What Parents Should Know

As a private school, Junipero Serra High 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.

Compare to Public Schools

Beta

How Junipero Serra High School compares to the 20 public schools in San Mateo, CA

Student-Teacher Ratio
15.8:1
This School
vs
19.5:1
Public Avg
Avg School Size
860
This School
vs
603
Public Avg
Avg School Scout Rating
5.3
This School
vs
6.5
Public Avg

Student Demographics

White 53.4% vs 0%
Asian 13.5% vs 0%
Hispanic 5% vs 0%
Black 1.5% vs 0%
Junipero Serra High School San Mateo Public Avg

All Schools in San Mateo

School Rating
Junipero Serra High School (this school) 5.3
Borel Middle 5.6
Meadow Heights Elementary 5.2
Beresford Elementary 6.7
Aragon High 8.5
Hillsdale High 7.0
Baywood Elementary 5.1
Fiesta Gardens International Elementary 6.6
Abbott Middle 6.9
Sunnybrae Elementary 5.0
Laurel Elementary 3.6
George Hall Elementary 9.3
Parkside Montessori 8.9
Bayside Academy 6.1
LEAD Elementary 5.6
North Shoreview Montessori 9.1
San Mateo Park Elementary 3.4
College Park Elementary 7.0
San Mateo High 7.7
Highlands Elementary 6.0
Gateway Center

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)
C+ 4.2 / 10
View breakdown
Student-Teacher Ratio 15.8:1
Instructional Commitment
? Total annual instructional hours based on school day length and days per year. (15% of overall score)
B- 5.3 / 10
View breakdown
School Day Length 6.5 hours
Annual Instructional Hours 1,189.5
Diversity & Inclusion
? Racial and ethnic diversity of the student body using Simpson's diversity index. (20% of overall score)
A- 7.7 / 10
View breakdown
Diversity Index 64%
Community Context

Data Unavailable

School Profile
? Enrollment size and grade span breadth — indicators of program depth and peer community. (15% of overall score)
C+ 4.4 / 10
View breakdown
Enrollment 860
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 53.4%
Two or More 22.4%
Asian 13.5%
Hispanic 5.0%
Pacific Islander 3.7%
Black 1.5%
Native American 0.5%

Source: NCES Private School Survey (PSS)

Location

451 W 20TH AVE, San Mateo, CA 94403

Nearby Alternatives

Families considering Junipero Serra High School may also want to explore other high schools in the area. Aragon High (rated 8.5/10, 0.8 miles away), which scores notably higher. Another option is FUSION ACADEMY - SAN MATEO (rated 7.2/10, 0.2 miles away), which scores notably higher. Additionally, Hillsdale High (rated 7.0/10, 0.9 miles away), which scores notably higher. For more schools in San Mateo, see our San Mateo schools guide .

Nearby Schools

20 within 1.1 mi
School Distance Rating
THE CAREY SCHOOL San Mateo 0.1 mi 8.7
The Carey School San Mateo 0.2 mi
FUSION ACADEMY - SAN MATEO San Mateo 0.2 mi 7.2
Fusion Academy San Mateo San Mateo 0.2 mi
UP ACADEMY, INC. San Mateo 0.3 mi
COMPASS HIGH SCHOOL San Mateo 0.3 mi
UP ACADEMY San Mateo 0.3 mi
Borel Middle San Mateo 0.4 mi 5.6
Meadow Heights Elementary San Mateo 0.4 mi 5.2
Beresford Elementary San Mateo 0.6 mi 6.7
St Gregory San Mateo 0.6 mi
ST GREGORY SCHOOL San Mateo 0.6 mi 5.2
The Burkard School San Mateo 0.7 mi
CENTENNIAL MONTESSORI SCHOOL San Mateo 0.8 mi 7.4
THE BURKARD SCHOOL San Mateo 0.7 mi 5.4
Aragon High San Mateo 0.8 mi 8.5
Hillsdale High San Mateo 0.9 mi 7.0
St. Matthew Catholic San Mateo 1.0 mi
Baywood Elementary San Mateo 0.9 mi 5.1
Abbott Middle San Mateo 1.1 mi 6.9

Neighborhood Census ACS (2019-2023)

Census data for ZIP 94403 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$179,825

Median Home Value

$1,725,900

Median Rent

$3,273/mo

Population

43,459

College Educated

60.3%

Homeownership

54%

Avg Commute

26.7 min

Poverty Rate

6.4%

Median Age

38.5

Community Profile

The community surrounding Junipero Serra High School has a median household income of $179,825. It is a well-educated community where 60% of adults hold a bachelor's degree or higher. The median home value in the area is $1,725,900, with a median rent of $3,273/month. The local poverty rate of 6.4% is relatively low. The average commute for residents is 27 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
Coliseum College Prep Academy Oakland, CA 5.3
Encina Preparatory High Sacramento, CA 5.3
Farmersville High Farmersville, CA 5.3
John F. Kennedy High Richmond, CA 5.3
MARIN CATHOLIC HIGH SCHOOL Kentfield, CA 5.3
Parlier High Parlier, CA 5.3

Frequently Asked Questions

Common questions about Junipero Serra High School

What grades does Junipero Serra High School serve?

Junipero Serra High School serves students in grades 9th through 12th.

How many students attend Junipero Serra High School?

Junipero Serra High School has an enrollment of approximately 860 students.

What is the student-teacher ratio at Junipero Serra High School?

The student-teacher ratio at Junipero Serra High School is 15.8:1. A lower ratio generally means more individual attention per student. The national average is approximately 11:1 for private schools.

How does Junipero Serra High School rank in CA?

Junipero Serra High School is ranked #1419 out of 1,790 private schools in CA.

What is Junipero Serra High School's MySchoolScout rating?

Junipero Serra High School has a composite rating of 5.3 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 Junipero Serra High School a private school?

Yes, Junipero Serra High School is a private all-boys school with a Roman Catholic affiliation. Private schools are not required to participate in state standardized testing, so academic performance data may be limited compared to public schools.

Is Junipero Serra High School a religious school?

Junipero Serra High School has a Roman Catholic religious affiliation.

11 schools nearby View map →

Neighborhood Context

City Safety
High (2,131/100K)

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

Quick Facts NCES PSS (SY 2021-22)

Grades
9th – 12th
Enrollment
860
Gender Split
100% M / 0% F
Student-Teacher Ratio
15.8:1
Teachers (FTE)
55
Type
private
Coed Status
all-boys
Affiliation
Roman Catholic
School Day
6.5 hours
Days Per Year
183 days
Setting
Midsize City
County
SAN MATEO
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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