St. Catherine Of Siena School

Saint Catherine of Siena is a parish K - 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.

Quick Facts (2026)

  • Top-Ranked CA School
  • Grades: Prekindergarten-8
  • Enrollment: 186 students
  • Yearly Tuition: $10,100
  • Application Deadline: None / Rolling
  • Source: National Center for Education Statistics (NCES)

Top Rankings

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

Category
Attribute
School History

School Overview

School Membership(s)School Assoc.
Religious Affiliation
Grades Offered
Grades Prekindergarten-8
Year Founded
1949
School Calendar

Student Body

Total Students
186 students
Student Body Type
Co-ed
% Students of Color
70%
State avg.: 51%
Students by Grade
St. Catherine Of Siena School Student By Grade

Academics and Faculty

Total Classroom Teachers
11 teachers
Student-Teacher Ratio
17:1
National avg.: 13:1

Tuition and Acceptance Rate

Admission Deadline
None / Rolling
Yearly Tuition Cost

School Notes

  • School Motto: 'Truth and Honor'
  • Saint Catherine of Siena is a parish K - 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: National Center for Education Statistics (NCES)

Frequently Asked Questions

How much does St. Catherine Of Siena School cost?
St. Catherine Of Siena School's tuition is approximately $10,100 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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Quick Facts (2026)

  • Top-Ranked CA School
  • Grades: Prekindergarten-8
  • Enrollment: 186 students
  • Yearly Tuition: $10,100
  • Application Deadline: None / Rolling
  • Source: National Center for Education Statistics (NCES)

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Did You Know?

The average private school tuition in Contra Costa County, CA is $18,404 for elementary schools and $26,557 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).

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