St. Irenaeus Parish School (Top Ranked Private School for 2026-27)

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Quick Facts (26-27)

Top Ranked CA School
Grades: Prekindergarten-8
Enrollment: 308 students
Yearly Tuition: $7,825
Acceptance rate: 95%
Average class size: 22 students
Application Deadline: None / Rolling
Source: ✓Verified school update

School Rankings

St. Irenaeus Parish School ranks among the top 20% of private schools in California for:

School Facts

Religious Affiliation

Catholic

Grades Offered

Grades Prekindergarten-8

Students By Grade

View Data

Distribution of Students By Grade
Grade	St. Irenaeus Parish School
Pre-K	20
Kind	23
1	25
2	34
3	35
4	32
5	29
6	41
7	31
8	38

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Year Founded

1963

Student Body

Total Students

308 students

Student Body Type

Co-ed

% Students of Color

80%

State avg.: 52%

Academic Profile

Total Classroom Teachers

16 teachers

Student-Teacher Ratio

19:1

National avg.: 11:1

% Faculty w/Advanced Degree

70%

Average Class Size

22 students

Classroom Dress Code

Formal

Casual uniform most days, formal uniform for specific events

Tuition & Financial Aid

Admission Deadline

None / Rolling

Yearly Tuition Cost

$7,825

View national tuition avg.

Tuition Notes

Tuition varies depending on parishioner status and number of children in the family. Tuition is adjusted yearly.

Acceptance Rate

95%

National avg.: 85%

Admissions Director

Mrs. Lily LoBasso

Admissions Associate

Lina Calderon

Application URL

Online Application

Sports

Total Sports Offered

5 sports

Sports

BasketballCheering

Flag FootballTrack and Field

Volleyball

Colors

Red and White

School Mascot

Eagle

Extracurriculars

Total ExtracurricularsTotal Extra-curric.

5 extracurriculars

ExtracurricularsExtra-curric.

Club or Organization:

Chess ClubStudent Government

Arts and Music Programs:

BandChoir

Recreational Athletic Programs:

Cheerleading/Pep Squad

School Notes

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.

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

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Frequently Asked Questions

How much does St. Irenaeus Parish School cost?

St. Irenaeus Parish School's tuition is approximately $7,825 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 83%.

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

Thanksgiving Break - No School

November 23, 2026 (Monday)

School Open House

January 31, 2027 (Sunday)

TK/K Last Day

June 08, 2027 (Tuesday)

LAST DAY - Noon Dismissal

June 10, 2027 (Thursday)

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Did You Know?

The average private school tuition in Orange County, CA is $11,889 for elementary schools and $17,013 for high schools (read more about average private school tuition across the country).

The average acceptance rate in Orange County, CA is 87% (read more about average acceptance rates across the country).