St. Catherine Of Siena School (Top Ranked Private School for 2026)

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Quick Facts (2026)

Top Ranked CA School
Grades: Prekindergarten-8
Enrollment: 161 students
Yearly Tuition: $10,700
Average class size: 20 students
Application Deadline: None / Rolling
Source: ✓Verified school update

School Rankings

St. Catherine Of Siena School ranks among the top 20% of private schools in California for:

School Facts

School Membership(s)School Assoc.

National Catholic Educational Association (NCEA)

Religious Affiliation

Catholic

Grades Offered

Grades Prekindergarten-8

Students By Grade

View Data

Distribution of Students By Grade
Grade	St. Catherine Of Siena School
Pre-K	28
Kind	21
1	14
2	11
3	17
4	10
5	15
6	17
7	15
8	13

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Year Founded

1949

Colors

Blue/White/Gold

School Calendar

View School Calendar

Last Day of School

Fri. Jun 4, 2027

Student Body

Total Students

161 students

Student Body Type

Co-ed

% Students of Color

70%

State avg.: 52%

Academics & Faculty

Total Classroom Teachers

11 teachers

Student-Teacher Ratio

15:1

National avg.: 11:1

Average Class Size

20 students

Classroom Dress Code

Formal

Uniform

Tuition & Acceptance Rate

Admission Deadline

None / Rolling

Yearly Tuition Cost

$10,700

View national tuition avg.

School Notes

Saint Catherine of Siena is a parish PreSchool - 8 elementary school based on teachings of Jesus Christ in the Roman Catholic tradition.
Each member of the school community answers the call to nurture each child - spirit, mind and body - in a safe, caring, family atmosphere.
We provide a challenging and comprehensive curriculum, which addresses a variety of learning styles and prepare each child for the future.
Utilizing the values learned at home and school, our children become people of faith, peace, justice, diversity, and responsibility.

School Motto: 'Truth and Honor'
School Mascot: Viking

Saint Catherine of Siena is a parish PreSchool- 8 elementary school based on teachings of Jesus Christ in the Roman Catholic tradition.
Each member of the school community answers the call to nurture each child - spirit, mind and body - in a safe, caring, family atmosphere.
We provide a challenging and comprehensive curriculum, which addresses a variety of learning styles and prepare each child for the future.
Utilizing the values learned at home and school, our children become people of faith, peace, justice, diversity, and responsibility.

Source: Verified school update

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Frequently Asked Questions

How much does St. Catherine Of Siena School cost?

St. Catherine Of Siena School's tuition is approximately $10,700 for private students.

What is St. Catherine Of Siena School's ranking?

St. Catherine Of Siena School ranks among the top 20% of private schools in California for: Oldest founding date.

When is the application deadline for St. Catherine Of Siena School?

The application deadline for St. Catherine Of Siena School is rolling (applications are reviewed as they are received year-round).

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Did You Know?

The average private school tuition in Contra Costa County, CA is $17,948 for elementary schools and $27,388 for high schools (read more about average private school tuition across the country).

The average acceptance rate in Contra Costa County, CA is 78% (read more about average acceptance rates across the country).