St. Mary S School
Parish school · Grades K–8
El Centro, CA
700 S Waterman Ave, El Centro, CA 92243
Overall grade: B+
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- A-Class size
- A-Years serving families
- B-Diversity
What stands out
- Serving families in El Centro since at least 2011
In El Centro, California, St. Mary S School is a Catholic parish school for students from kindergarten through 8th grade. About 168 students attend, with roughly 16 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. The school day runs about 6.5 hours, 212 days a year.
At a glance
- Grades
- Grades K–8
- Students
- 168
- Teachers
- 10.6 (full-time equivalent)
- Students per teacher
- 15.8
- Boys and girls
- Coed · 87 girls, 81 boys
- Religious affiliation
- Catholic · Parish school
- Diocese
- Diocese of San Diego
- School day
- About 6.5 hours
- School year
- 212 days
- Library
- Yes
Reviews
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How it compares
- Smaller classes than 55% of Catholic elementary schools in California (16 students per teacher).
- A smaller school: fewer students 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
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. Mary S School
What grades does St. Mary S School serve?
St. Mary S School serves grades K–8.
How many students attend St. Mary S School?
About 168 students, with 16 students per teacher, according to official records.
How much is tuition at St. Mary S 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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