St. Pius X - St. Matthias Academy is a coeducational private, Catholic high school for grades 9–12 located in Downey, California.
It is operated by the Roman Catholic Archdiocese of Los Angeles and accredited by the Western Association of Schools and Colleges and the Western Catholic Educational Association.
Quick Facts (2025-26)
- Top Ranked CA School
- Grades: 9-12
- Enrollment: 451 students
- Yearly Tuition: $11,800
- Application Deadline: None / Rolling
- Source: National Center for Education Statistics (NCES)
Top Rankings
St. Pius-st. Matthias Academy ranks among the top 20% of private schools in California for:
Category
Attribute
Student Body
School Overview
Religious Affiliation
Grades Offered
Grades 9-12
Year Founded
2013
Colors
Grey, Crimson
School Calendar
Campus Size
17 acres
Student Body
Total Students
451 students
Student Body Type
Co-ed
% Students of Color
26%
State avg.: 51%
Students by Grade
Academics and Faculty
Total Classroom Teachers
30 teachers
Student-Teacher Ratio
15:1
National avg.: 13:1
Tuition and Acceptance Rate
Admission Deadline
None / Rolling
Yearly Tuition Cost
$11,800
Application URL
School Notes
- School Motto: Pride – Virtue – Purpose
- Sample of notable school alumni/alumnae:
- -
Source: National Center for Education Statistics (NCES)
Frequently Asked Questions
How much does St. Pius-st. Matthias Academy cost?
St. Pius-st. Matthias Academy's tuition is approximately $11,800 for private students.
Who are famous alumni from St. Pius-st. Matthias Academy?
St. Pius-st. Matthias Academy famous alumni include: .
What is St. Pius-st. Matthias Academy's ranking?
St. Pius-st. Matthias Academy ranks among the top 20% of private schools in California for: Largest student body.
When is the application deadline for St. Pius-st. Matthias Academy?
The application deadline for St. Pius-st. Matthias Academy is rolling (applications are reviewed as they are received year-round).
Nearby Private Schools
The nearest high school to St. Pius-st. Matthias Academy is St. Pius X - St. Matthias High School (0.1 miles away)
The nearest elementary school is St. Raymond School (0.9 miles away)
The nearest preschool is Rancho Los Amigos Childrens Center (0.3 miles away)
Show me:
School
Location
Miles
Quick Facts
7851 Gardendale Street
Downey, CA 90242
(562) 861-2271
Downey, CA 90242
(562) 861-2271
0.1 miles
Gr: 9-12 | 451 students Avg. class size: 20 students Sports: 10 Tuition & acceptance rate listed
Rancho Los Amigos Childrens Center![Rancho Los Amigos Childrens Center Photo - Lobby]( "Rancho Los Amigos Childrens Center Photo - Lobby")
Daycare / Preschool
7755 Golondrinas St
Downey, CA 90242
(562) 385-7981
Downey, CA 90242
(562) 385-7981
0.3 miles
Gr: PK-K | 94 students
Rancho Los Amigos KinderCare
Daycare / Preschool
7755 Golondrinas St.
Downey, CA 90242
(562) 401-7981
Downey, CA 90242
(562) 401-7981
0.3 miles
Gr: NS-PK
Kid Town Usa Preschool-montessori Academy
Daycare / Preschool
13500 Paramount Blvd
South Gate, CA 90280
(562) 630-0400
South Gate, CA 90280
(562) 630-0400
0.4 miles
Gr: PK-K | 139 students
St. Raymond School
(Catholic)
12320 Paramount Blvd
Downey, CA 90242
(562) 862-3100
Downey, CA 90242
(562) 862-3100
0.9 miles
Gr: K-8 | 266 students Tuition listed
School Reviews
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