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Average

#847 of 1,790 private schools in CA

Top 47% of private schools

St Pius-st. Matthias Academy

High School

7851 GARDENDALE ST, Downy, CA 90242

Private Estimated Score

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

Enrollment

451

Student-Teacher

15:1

Score

6.3

Grades

9th – 12th

Updated 2021-22

How this school compares

California high schools

#155 of 277

About St Pius-st. Matthias Academy

ST PIUS-ST. MATTHIAS ACADEMY serves 451 students in grades 9-12 in Downy, California. This regular public high school maintains a reasonable student-teacher ratio of 15:1 with 30 full-time equivalent teachers, creating an environment where students can receive more individualized attention than in many larger schools.

The school earns a solid 7.5 out of 10 rating from MySchoolScout and ranks #1280 out of 1790 high schools statewide, placing it in the 28th percentile among California schools. This indicates the school is working to support student achievement and has room for continued academic growth. Located at 7851 Gardendale Street, the academy sits in a stable suburban community where the median household income reaches $81,448 and median home values are $634,800.

The surrounding ZIP code of 90242 is home to 41,685 residents, with 23% holding bachelor's degrees or higher and a relatively low poverty rate of 8.8%, suggesting families in the area generally have economic stability to support their children's education. ST PIUS-ST. MATTHIAS ACADEMY operates within Downy's large suburban setting in Los Angeles County, providing students with access to both the resources of a major metropolitan area and the more intimate feel of a mid-sized high school community.

What Parents Should Know

As a private school, St Pius-st. Matthias Academy 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.

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)
B- 4.5 / 10
View breakdown
Student-Teacher Ratio 15:1
Instructional Commitment
? Total annual instructional hours based on school day length and days per year. (15% of overall score)
A 8.5 / 10
View breakdown
School Day Length 7.2 hours
Annual Instructional Hours 1,296
Diversity & Inclusion
? Racial and ethnic diversity of the student body using Simpson's diversity index. (20% of overall score)
B 6.1 / 10
View breakdown
Diversity Index 54%
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 451
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 63.6%
Two or More 12.6%
Hispanic 9.8%
Asian 7.3%
Black 3.5%
Native American 2.2%
Pacific Islander 0.9%

Source: NCES Private School Survey (PSS)

Location

7851 GARDENDALE ST, Downy, CA 90242

Nearby Alternatives

Families considering St Pius-st. Matthias Academy may also want to explore other high schools in the area. ST PIUS X - ST. MATTHIAS HIGH SCHOOL (rated 7.2/10, in nearby Downey), which scores slightly higher. Another option is Paramount High (rated 6.7/10, 1.3 miles away, in nearby Paramount), which scores slightly higher. Additionally, Vista High (rated 5.9/10, 1.1 miles away, in nearby Lynwood), with a comparable rating. For more schools in Downy, see our Downy schools guide .

Nearby Schools

20 within 1.2 mi
School Distance Rating
ST PIUS X - ST. MATTHIAS HIGH SCHOOL Downey 0.0 mi 7.2
St. Pius X St. Matthias Academy Downey 0.1 mi
RANCHO LOS AMIGOS CHILDRENS CENTER Downey 0.4 mi
KID TOWN USA PRESCHOOL-MONTESSORI ACADEMY South Gate 0.4 mi
Theodore Roosevelt Paramount 0.6 mi 5.4
Hollydale South Gate 0.8 mi 7.0
Imperial Elementary Downey 0.8 mi 5.2
ST RAYMOND SCHOOL Downey 0.9 mi 6.1
Paramount Unified Community Day Paramount 1.2 mi
Paramount Park Middle Paramount 1.3 mi 7.0
Old River Elementary Downey 1.3 mi 7.0
Ward (E. W.) Elementary Downey 1.1 mi 3.7
Paramount High Paramount 1.3 mi 6.7
Harry Wirtz Elementary Paramount 1.3 mi 7.2
Vista High Lynwood 1.1 mi 5.9
Howard Tanner Paramount 1.3 mi 7.8
Stauffer (Mary R.) Middle Downey 1.4 mi 7.6
Our Lady of the Rosary School Paramount 1.4 mi
OUR LADY OF THE ROSARY SCHOOL Paramount 1.4 mi 5.3
Sussman (Edward A.) Middle Downey 1.2 mi 7.0

Neighborhood Census ACS (2019-2023)

Census data for ZIP 90242 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$83,238

Median Home Value

$676,100

Median Rent

$1,874/mo

Population

40,983

College Educated

24.2%

Homeownership

52.4%

Avg Commute

29.6 min

Poverty Rate

9.3%

Median Age

37.4

Community Profile

The community surrounding St Pius-st. Matthias Academy has a median household income of $83,238. It is a community where 24% of adults hold a bachelor's degree or higher. The median home value in the area is $676,100, with a median rent of $1,874/month. The local poverty rate of 9.3% 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
Alpha Cindy Avitia High San Jose, CA 6.3
Carpinteria Senior High Carpinteria, CA 6.3
DON BOSCO TECHNICAL INSTITUTE Rosemead, CA 6.3
Diego Rivera Learning Complex Green Design STEAM Academy Los Angeles, CA 6.3
Gilbert High (Continuation) Anaheim, CA 6.3
MISSION COLLEGE PREP HIGH SCHOOL San Luis Obispo, CA 6.3

Frequently Asked Questions

Common questions about St Pius-st. Matthias Academy

What grades does St Pius-st. Matthias Academy serve?

St Pius-st. Matthias Academy serves students in grades 9th through 12th.

How many students attend St Pius-st. Matthias Academy?

St Pius-st. Matthias Academy has an enrollment of approximately 451 students.

What is the student-teacher ratio at St Pius-st. Matthias Academy?

The student-teacher ratio at St Pius-st. Matthias Academy is 15:1. A lower ratio generally means more individual attention per student. The national average is approximately 11:1 for private schools.

How does St Pius-st. Matthias Academy rank in CA?

St Pius-st. Matthias Academy is ranked #847 out of 1,790 private schools in CA.

What is St Pius-st. Matthias Academy's MySchoolScout rating?

St Pius-st. Matthias Academy has a composite rating of 6.3 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 St Pius-st. Matthias Academy a private school?

Yes, St Pius-st. Matthias Academy is a private coeducational 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 St Pius-st. Matthias Academy a religious school?

St Pius-st. Matthias Academy has a Roman Catholic religious affiliation.

11 schools nearby View map →

Quick Facts NCES PSS (SY 2021-22)

Grades
9th – 12th
Enrollment
451
Gender Split
54% M / 46% F
Student-Teacher Ratio
15:1
Teachers (FTE)
30
Type
private
Coed Status
coed
Affiliation
Roman Catholic
School Day
7.2 hours
Days Per Year
180 days
Setting
Large Suburb
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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