St. Joseph's Preparatory School
Independent Catholic school · Grades 9–12
Philadelphia, PA
1733 W Girard Ave, Philadelphia, PA 19130
Overall grade: B+
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- B+Class size
- ACollege-going
- BYears serving families
- A-Diversity
What stands out
- One of the 3 largest Catholic schools in Pennsylvania
- The largest Catholic school in Philadelphia
- 100% of graduates go to four-year colleges
St. Joseph's Preparatory School is an independent Catholic school in Philadelphia, Pennsylvania, for students from 9th grade through 12th grade. It has about 938 students and around 13 students per teacher. The school is an all-boys school and is part of the Archdiocese of Philadelphia. The school reports that about 100% of its graduates go on to four-year colleges. Students attend about 6.5 hours a day, 160 days a year. Pennsylvania has programs that can help pay tuition; ask the school whether it takes part.
At a glance
- Grades
- Grades 9–12
- Students
- 938
- Teachers
- 69.9 (full-time equivalent)
- Students per teacher
- 13.4
- Boys and girls
- All boys
- Religious affiliation
- Catholic · Independent Catholic school
- Diocese
- Archdiocese of Philadelphia
- School day
- About 6.5 hours
- School year
- 160 days
- Graduates going to 4-year colleges
- About 100% (the school's estimate for the class before the survey)
- Library
- Yes
Reviews
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How it compares
- Larger than 96% of Catholic high schools in Pennsylvania.
- Compared with 57 Catholic high schools in Pennsylvania.
Students by grade
Student body
Member of
- Jesuit Schools Network
- National Catholic Educational Association
- A state or regional independent school association
Help paying tuition in Pennsylvania
These state programs can help pay private school tuition. Only participating schools can accept them, so ask St. Joseph's Preparatory School whether it takes part.
- Opportunity Scholarship Tax Credit (OSTC) · Tax-credit scholarship
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's Preparatory School
What grades does St. Joseph's Preparatory School serve?
St. Joseph's Preparatory School serves grades 9–12.
How many students attend St. Joseph's Preparatory School?
About 938 students, with 13 students per teacher, according to official records.
How much is tuition at St. Joseph's Preparatory School?
Call the school to ask about tuition, financial aid and payment plans. Pennsylvania has programs that can help pay private school tuition; ask whether the school takes part.
Official record · Updated October 2026 · Official search · Something wrong? Tell us
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