St. Joseph Academy
Independent Catholic school · Grades K–12
San Marcos, CA
500 Las Flores Dr, San Marcos, CA 92078
Overall grade: B+
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- BClass size
- B+College-going
- A-Years serving families
- A+Diversity
What stands out
- Growing: enrollment up 30% since 2011–12
- Serving families in San Marcos since at least 2011
St. Joseph Academy is an independent Catholic school in San Marcos, California, for students from kindergarten through 12th grade. It has about 355 students and around 15 students per teacher. Enrollment has grown about 30% since 2011–12. The school is part of the Diocese of San Diego. The school reports that about 70% of its graduates go on to four-year colleges. Students attend about 7 hours a day, 172 days a year.
At a glance
- Grades
- Grades K–12
- Students
- 355
- Teachers
- 24 (full-time equivalent)
- Students per teacher
- 14.8
- Boys and girls
- Coed · 183 girls, 172 boys
- Religious affiliation
- Catholic · Independent Catholic school
- Diocese
- Diocese of San Diego
- School day
- About 7 hours
- School year
- 172 days
- Graduates going to 4-year colleges
- About 70% (the school's estimate for the class before the survey)
Reviews
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How it compares
- Larger than 52% of Catholic schools in California.
- Compared with 21 Catholic 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. Joseph Academy
What grades does St. Joseph Academy serve?
St. Joseph Academy serves grades K–12.
How many students attend St. Joseph Academy?
About 355 students, with 15 students per teacher, according to official records.
How much is tuition at St. Joseph Academy?
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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