St. Mary School
Diocesan school · Grades K–8
Gilroy, CA
7900 Church St, Gilroy, CA 95020
Overall grade: A-
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- BClass size
- A-Years serving families
- A+Diversity
What stands out
- Serving families in Gilroy since at least 2011
In Gilroy, California, St. Mary School is a Catholic diocesan school for students from kindergarten through 8th grade. About 207 students attend, with roughly 20 students per teacher. It has been listed in official private school records since 2011–12. The school is part of the Diocese of San Jose. The school day runs about 6.5 hours, 181 days a year.
At a glance
- Grades
- Grades K–8
- Students
- 207
- Teachers
- 10.5 (full-time equivalent)
- Students per teacher
- 19.7
- Boys and girls
- Coed · 104 girls, 103 boys
- Religious affiliation
- Catholic · Diocesan school
- Diocese
- Diocese of San Jose
- School day
- About 6.5 hours
- School year
- 181 days
- Library
- Yes
Reviews
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How it compares
- A smaller school: fewer students than 54% 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. Mary School
What grades does St. Mary School serve?
St. Mary School serves grades K–8.
How many students attend St. Mary School?
About 207 students, with 20 students per teacher, according to official records.
How much is tuition at St. Mary 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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