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Holy Trinity Elementary School

509 Ballard St
El Cajon, CA 92019
Holy Trinity School is a joyful,welcoming,caring, active community of believers supporting families in educating children in academics and Catholic values to meet the challenges of our world.
Holy Trinity Catholic School has offered, and continues to offer, high quality spiritual and academic education to preschool - eighth grade students in San Diego's east county for more than fifty years.
Holy Trinity School is a joyful, welcoming, caring, active community of believers supporting families in educating children in academics and Catholic values to meet the challenges of our world.
Our administration, faculty, and staff continue to strive for excellence while assisting our students in becoming life-long learners.
Once you experience Holy Trinity School you will immediately become "one of the family".
Our Catholic faith is the foundation of our dedication and compassion to our students and families.

Quick Facts (2026)

  • Top-Ranked CA School
  • Grades: Kindergarten-8
  • Enrollment: 166 students
  • Yearly Tuition: $8,390
  • Application Deadline: None / Rolling
  • Source: National Center for Education Statistics (NCES)

Top Rankings

Holy Trinity Elementary 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 Kindergarten-8
Year Founded
1951
School Calendar

Student Body

Total Students
166 students
Student Body Type
Co-ed
% Students of Color
26%
State avg.: 51%
Students by Grade

Academics and Faculty

Total Classroom Teachers
12 teachers
Student-Teacher Ratio
14:1
National avg.:

Tuition and Acceptance Rate

Admission Deadline
None / Rolling
Yearly Tuition Cost

School Notes

  • School Motto: Holy Trinity School is a joyful, welcoming, caring, active community of believers supporting families in educating children in academics and Catholic values to meet the challenges of our world.
  • Holy Trinity School is a joyful,welcoming,caring, active community of believers supporting families in educating children in academics and Catholic values to meet the challenges of our world. Holy Trinity Catholic School has offered, and continues to offer, high quality spiritual and academic education to preschool - eighth grade students in San Diego's east county for more than fifty years. Holy Trinity School is a joyful, welcoming, caring, active community of believers supporting families in educating children in academics and Catholic values to meet the challenges of our world. Our administration, faculty, and staff continue to strive for excellence while assisting our students in becoming life-long learners. Once you experience Holy Trinity School you will immediately become "one of the family". Our Catholic faith is the foundation of our dedication and compassion to our students and families.
  • Sample of notable school alumni/alumnae:
    • Theresa Sweetman, Graduate 1999
Source: National Center for Education Statistics (NCES)

Frequently Asked Questions

How much does Holy Trinity Elementary School cost?
Holy Trinity Elementary School's tuition is approximately $8,390 for private students.
Who are famous alumni from Holy Trinity Elementary School?
Holy Trinity Elementary School famous alumni include: Theresa Sweetman, Graduate 1999.
What is Holy Trinity Elementary School's ranking?
Holy Trinity Elementary School ranks among the top 20% of private schools in California for: Oldest founding date.
When is the application deadline for Holy Trinity Elementary School?
The application deadline for Holy Trinity Elementary School is rolling (applications are reviewed as they are received year-round).

School Reviews

5  
An amazing school community, Christ centered, feels like you are part of a large family. Best teachers ever, lots of fun while you learn!
- Posted by

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Quick Facts (2026)

  • Top-Ranked CA School
  • Grades: Kindergarten-8
  • Enrollment: 166 students
  • Yearly Tuition: $8,390
  • Application Deadline: None / Rolling
  • Source: National Center for Education Statistics (NCES)

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Did You Know?

The average private school tuition in San Diego County, CA is $16,968 for elementary schools and $24,591 for high schools (read more about average private school tuition across the country).
The average acceptance rate in San Diego County, CA is 84% (read more about average acceptance rates across the country).

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