St. Charles School
Diocesan school · Grades K–8
San Carlos, CA
850 Tamarack Ave, San Carlos, CA 94070
Overall grade: A+
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- A-Class size
- A-Years serving families
- A-Diversity
What stands out
- Smaller classes than 63% of Catholic schools in California
- Serving families in San Carlos since at least 2011
St. Charles School is a Catholic diocesan school in San Carlos, California, for students from kindergarten through 8th grade. It has about 263 students and around 15 students per teacher, smaller classes than 63% of Catholic elementary schools in California. It has been listed in official private school records since 2011–12. The school is part of the Archdiocese of San Francisco. Students attend about 7 hours a day, 180 days a year.
At a glance
- Grades
- Grades K–8
- Students
- 263
- Teachers
- 17.9 (full-time equivalent)
- Students per teacher
- 14.7
- Boys and girls
- Coed · 137 girls, 126 boys
- Religious affiliation
- Catholic · Diocesan school
- Diocese
- Archdiocese of San Francisco
- School day
- About 7 hours
- School year
- 180 days
- Library
- Yes
Reviews
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How it compares
- Smaller classes than 63% of Catholic elementary schools in California (15 students per teacher).
- Larger than 70% 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 School
What grades does St. Charles School serve?
St. Charles School serves grades K–8.
How many students attend St. Charles School?
About 263 students, with 15 students per teacher, according to official records.
How much is tuition at St. Charles 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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