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Private high school · Downy, California

St Pius-St. Matthias Academy

St Pius-St. Matthias Academy rates 6.4 on the private-school model, which scores no academics: the estimated academic score shown on this page is drawn from California statewide data for context and is not part of the rating.

High schools, 1 to 10This campus on our ten-point scale.
6.4this school

6.4 on a one-to-ten scale.

#963 of 1,893 schools in California · The estimated academic score from California statewide data is context only and is not part of this rating

The brief

A private high school in Downy, CA serving grades 9th – 12th.

It ranks 963 of 1,893 schools in California.

St Pius-St. Matthias Academy is a private school: it enrolls by application and tuition, and its rating comes from the private-school model, which is not comparable with a public rating.

The rating blends 4 components; no state test results are on file for this campus.MySchoolScout ranking model.

What the rating is made of, each out of 10

Classroom Attention
4.6
30% of the rating
Instructional Commitment
8.7
15% of the rating
Diversity & Inclusion
6.1
20% of the rating
Community Context
Data not available
School Profile
8.2
15% of the rating
About this school's datarating: low confidence · 3 sources, 2019–2023

Every number on this page comes from a published source with a stated period. Where a source is partial, aging, an estimate, or describes a surrounding area rather than the school, that limitation is named here.

  • Estimated academic score. This school does not have standardized test data. Based on CA statewide data. Learn more
  • What this rating measures: classroom size, instructional time, student diversity, community resources, and school characteristics. Private schools are ranked against other private schools in CA.
  • Component weights adjusted due to data availability.

Score basis: private school model. Data coverage: 80% of scoring components had data. Components scored: 4 of 5. Ranking pool: private schools in CA.

School directory (enrollment, grades, staff, contact)
NCES Private School Universe Survey (PSS) · SY 2021–22 · Medium confidence
  • Source period: SY 2021–22. A newer release may be available.
MySchoolScout rating and rank
MySchoolScout ranking model · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Available for part of the eligible units; results may not represent the full area.
  • Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
Neighborhood (income, housing, education)
U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
  • Older source: ACS 2019–2023 5-year estimates. Use as historical context.
  • Reported for the ZCTA for ZIP 90242; this does not measure the attendance area.

Evidence periods: Rating mixed/unknown input periods; assessments vintage unavailable; directory SY 2021–22

About our dataHow we calculate scores

The neighborhood

Where it sits, and what the area looks like.
St Pius-St. Matthias Academy and the 20 nearest high schools, each pin colored by its score.Pins are locations, not attendance boundaries. Verify the enrollment path with the district.

Open the Los Angeles school map to see school quality against home prices across the metro.

The area

Median income
$83,238
Median home value
$676,100
Median rent
$1,874/mo
College educated
24.2%
Homeownership
52.4%
Poverty rate
9.3%

U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 90242; this is area context, not an attendance boundary.

Getting around

Walk Score
64
Somewhat Walkable
Bike Score
54
Bikeable
County reported crime
2,710/100K
Reported Part-1 offenses (violent + property + arson) per 100,000 county residents, counting every city police department, sheriff's office and county police department that reported a full year to the FBI Uniform Crime Reporting program. Shown only where those agencies cover at least 80% of the county's residents. Not a school safety rating.

Walk, transit and bike scores byWalk Score

FBI Uniform Crime Reporting · 2025 · county context, not school-level safety or attendance eligibility. Source details

Programs and who goes here

What the campus offers, and who it enrolls.

Who goes here

  • White64%
  • Two or More13%
  • Hispanic10%
  • Asian7%
  • Black3%
  • Native American2%
  • Pacific Islander1%

Enrollment mix: NCES Private School Universe Survey (PSS).

Compare nearby

Grade-compatible schools using the same rating model.
Private-school ratings. Grade-compatible schools within 5 miles, best rated first.
  1. St John Bosco2.3 mi · private
    7.3Compare →
  2. St Pius-St. Matthias Academythis school
    6.4
  3. Heritage Christian School - Bell Gardens2.6 mi · private
    5.7Compare →
  4. St Pius X - St. Matthias High School0.0 mi · private
    5.0Compare →
  5. Calvary Christian Academy of Compton2.1 mi · private
    not ratedCompare →
  6. Inter-Tribal Family of Nations Day School Program1.8 mi · private
    not ratedCompare →
Five grade-compatible schools using the same rating model sit within 5 miles, and one rates higher than St Pius-St. Matthias Academy among the rated peers.Private-school ratings. Straight-line distance from this campus. Pins are locations, not attendance boundaries; verify the enrollment path with the district.

Distance is proximity only; it is not attendance eligibility.

Private · tuition: Potential private option; tuition and admission requirements have not been verified.

The record

What is on file, and where each number came from.

Questions families ask

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 ranks #963 of 1,893 private schools in CA.

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

St Pius-St. Matthias Academy has a current MySchoolScout rating of 6.4 out of 10. This score combines the level-appropriate components shown in the rating breakdown; 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.

School facts

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 County
Phone
(562) 861-2271
Area population (ZIP 90242)
40,983
Area average commute
29.6 min
Area median age
37.4

NCES Private School Universe Survey (PSS) (SY 2021–22).

Sources and official links

Keep exploring

Related reading

Data from NCES Common Core of Data, California Dept. of Education, and U.S. Census ACS for the 2023–24 school year. Rankings computed by MySchoolScout. See all data sources.