The Catholic faith community of St. Irenaeus School is committed to helping our children develop to their full spiritual and academic potential.
Our mission is to welcome all children and recognize individual differences, gifts, abilities, and learning styles.
We partner with our parents and the Parish to foster discipleship, stewardship, and leadership.
Quick Stats (2025)
- Top Ranked CA School
- Grades: Kindergarten-8
- Enrollment: 341 students
- Yearly Tuition: $6,520
- Acceptance rate: 95%
- Average class size: 20 students
- Application Deadline: None / Rolling
- Source: Verified school update
Top Rankings
St. Irenaeus Parish School ranks among the top 20% of private schools in California for:
Category
Attribute
Student Body
School Overview
Religious Affiliation
Grades Offered
Grades Kindergarten-8
Year Founded
1963
First Day of School
Mon. Sep 1, 2025
Last Day of School
Mon. May 25, 2026
Student Body
Total Students
341 students
Student Body Type
Co-ed
% Students of Color
79%
State avg.: 51%
Students by Grade
Academics and Faculty
Total Classroom Teachers
18 teachers
Student : Teacher Ratio
19:1
National avg.: 13:1
% Faculty w/Advanced Degree
50%
Average Class Size
20 students
Classroom Dress Code
Formal
Casual uniform most days, formal uniform for specific events
Tuition and Acceptance Rate
Admission Deadline
None / Rolling
Yearly Tuition Cost
Tuition Notes
Tuition varies depending on parishioner status and number of children in the family. Tuition is adjusted yearly.
Acceptance Rate
95%
National avg.: 81%
Admissions Director
Mrs. Lily LoBasso
Admissions Associate
Lisa Sambrano
Application URL
Sports
Total Sports Offered
5 sports
Sports
Extracurriculars
Total ExtracurricularsTotal Extra-curric.
5 extracurriculars
ExtracurricularsExtra-curric.
Club or Organization:
Arts and Music Programs:
Recreational Athletic Programs:
Chess Club, Student Government
Arts and Music Programs:
Band, Choir
Recreational Athletic Programs:
Cheerleading/Pep Squad
School Notes
- Our school opened its doors for the first time in September of 1963. From that time our mission has been to provide our students with the best Catholic education possible. Our commitment to providing our students with a challenging academic program continues. Our students' academic preparation and achievements are reflected in their honors, awards, and successes in their high school and college years, and in their careers. We offer a variety of extra-curricular activities and programs including fine arts, Honors Math, Accelerated Reading and Math, PE, and Extended Day Care.
Source: Verified school update
Frequently Asked Questions
How much does St. Irenaeus Parish School cost?
St. Irenaeus Parish School's tuition is approximately $6,520 for private students.
What is the acceptance rate of St. Irenaeus Parish School?
The acceptance rate of St. Irenaeus Parish School is 95%, which is higher than the national average of 80%.
What sports does St. Irenaeus Parish School offer?
St. Irenaeus Parish School offers 5 interscholastic sports: Basketball, Cheering, Flag Football, Track and Field and Volleyball.
What is St. Irenaeus Parish School's ranking?
St. Irenaeus Parish School ranks among the top 20% of private schools in California for: Largest student body.
When is the application deadline for St. Irenaeus Parish School?
The application deadline for St. Irenaeus Parish School is rolling (applications are reviewed as they are received year-round).
School Calendar
View the St. Irenaeus Parish School yearly calendar below. Note key dates such as:
Event
Date
First Day of School (Events)
August 25, 2025 (Monday)
Thanksgiving Break - No School (Events)
November 24, 2025 (Monday)
School Open House (Events)
January 25, 2026 (Sunday)
TK/K Last Day (Events)
June 09, 2026 (Tuesday)
LAST DAY - Noon Dismissal (Events)
June 11, 2026 (Thursday)
School Reviews
Endorse St. Irenaeus Parish School. Endorsements should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
- Academic or athletic awards
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