St. John Bosco
Independent Catholic school · Grades 9–12
Bellflower, CA
13640 Bellflower Blvd, Bellflower, CA 90706
Overall grade: A+
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- AClass size
- ACollege-going
- BYears serving families
- A+Diversity
What stands out
- The only all-boys school in Bellflower
- The smallest classes of any Catholic school in Bellflower
- The largest Catholic school in Bellflower
- 98% of graduates go to four-year colleges
- Smaller classes than 70% of Catholic schools in California
St. John Bosco is an independent Catholic school in Bellflower, California, for students from 9th grade through 12th grade. It has about 800 students and around 12 students per teacher, smaller classes than 70% of Catholic high schools in California. The school is an all-boys school and is part of the Archdiocese of Los Angeles. The school reports that about 98% of its graduates go on to four-year colleges. Students attend about 7.5 hours a day, 179 days a year.
At a glance
- Grades
- Grades 9–12
- Students
- 800
- Teachers
- 65.3 (full-time equivalent)
- Students per teacher
- 12.3
- Boys and girls
- All boys
- Religious affiliation
- Catholic · Independent Catholic school
- Diocese
- Archdiocese of Los Angeles
- School day
- About 7.5 hours
- School year
- 179 days
- Graduates going to 4-year colleges
- About 98% (the school's estimate for the class before the survey)
- Library
- Yes
Reviews
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How it compares
- Smaller classes than 70% of Catholic high schools in California (12 students per teacher).
- Larger than 77% of Catholic high schools in California.
- Compared with 86 Catholic high schools in California.
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. John Bosco
What grades does St. John Bosco serve?
St. John Bosco serves grades 9–12.
How many students attend St. John Bosco?
About 800 students, with 12 students per teacher, according to official records.
How much is tuition at St. John Bosco?
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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