St. Charles Catholic School
Diocesan school · Grades K–8
San Diego, CA
929 18th St, San Diego, CA 92154
Overall grade: B+
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- BClass size
- A-Years serving families
- ADiversity
What stands out
- Serving families in San Diego since at least 2011
St. Charles Catholic School is a Catholic diocesan school in San Diego, California, for students from kindergarten through 8th grade. It has about 182 students and around 19 students per teacher. It has been listed in official private school records since 2011–12. The school is part of the Diocese of San Diego. Students attend about 7 hours a day, 180 days a year.
At a glance
- Grades
- Grades K–8
- Students
- 182
- Teachers
- 9.4 (full-time equivalent)
- Students per teacher
- 19.4
- Boys and girls
- Coed · 103 girls, 79 boys
- Religious affiliation
- Catholic · Diocesan school
- Diocese
- Diocese of San Diego
- School day
- About 7 hours
- School year
- 180 days
- Library
- Yes
Reviews
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How it compares
- A smaller school: fewer students than 64% of Catholic elementary schools in California.
- Compared with 416 Catholic elementary schools in California.
Students by survey year
Total students reported in official records since 2011–12.
Students by grade
Student body
Member of
- National Catholic Educational Association
Questions to ask on a tour
- What is tuition, and what does it include (books, fees, uniforms, trips)?
- Do you offer financial aid, sibling discounts or payment plans?
- Do you accept ESA, voucher or tax-credit scholarship funds?
- How big are classes in my child's grade?
- What support is there for students who need extra help or more challenge?
- Is the school accredited, and by whom?
- What do a typical day and a typical week look like?
- How does the school communicate with families?
Questions about St. Charles Catholic School
What grades does St. Charles Catholic School serve?
St. Charles Catholic School serves grades K–8.
How many students attend St. Charles Catholic School?
About 182 students, with 19 students per teacher, according to official records.
How much is tuition at St. Charles Catholic School?
Call the school to ask about tuition, financial aid and payment plans.
Official record · Updated October 2026 · Official search · Something wrong? Tell us
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