Old Mission School
Parish school · Grades K–8
San Luis Obispo, CA
761 Broad St, San Luis Obispo, CA 93401
Overall grade: A+
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- AClass size
- A-Years serving families
- ADiversity
What stands out
- Smaller classes than 70% of Catholic schools in California
- Serving families in San Luis Obispo since at least 2011
Old Mission School is a Catholic parish school in San Luis Obispo, California, for students from kindergarten through 8th grade. It has about 294 students and around 14 students per teacher, smaller classes than 70% of Catholic elementary schools in California. It has been listed in official private school records since 2011–12. The school is part of the Diocese of Monterey. Students attend about 6.5 hours a day, 180 days a year.
At a glance
- Grades
- Grades K–8
- Students
- 294
- Teachers
- 21.1 (full-time equivalent)
- Students per teacher
- 13.9
- Boys and girls
- Coed · 138 girls, 156 boys
- Religious affiliation
- Catholic · Parish school
- Diocese
- Diocese of Monterey
- School day
- About 6.5 hours
- School year
- 180 days
Reviews
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How it compares
- Smaller classes than 70% of Catholic elementary schools in California (14 students per teacher).
- Larger than 79% 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 Old Mission School
What grades does Old Mission School serve?
Old Mission School serves grades K–8.
How many students attend Old Mission School?
About 294 students, with 14 students per teacher, according to official records.
How much is tuition at Old Mission 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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