Mount Saint Joseph High School
Independent Catholic school · Grades 9–12
Baltimore, MD
4403 Frederick Ave, Baltimore, MD 21229
Overall grade: A+
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- A-Class size
- ACollege-going
- A-Years serving families
- ADiversity
What stands out
- 95% of graduates go to four-year colleges
- Smaller classes than 64% of Catholic schools in Maryland
- Serving families in Baltimore since at least 2011
Mount Saint Joseph High School is an independent Catholic school in Baltimore, Maryland, for students from 9th grade through 12th grade. It has about 798 students and around 10 students per teacher, smaller classes than 64% of Catholic high schools in Maryland. It has been listed in official private school records since 2011–12. The school is an all-boys school and is part of the Archdiocese of Baltimore. The school reports that about 95% of its graduates go on to four-year colleges. Students attend about 6.5 hours a day, 173 days a year. Maryland has programs that can help pay tuition; ask the school whether it takes part.
At a glance
- Grades
- Grades 9–12
- Students
- 798
- Teachers
- 77.9 (full-time equivalent)
- Students per teacher
- 10.2
- Boys and girls
- All boys
- Religious affiliation
- Catholic · Independent Catholic school
- Diocese
- Archdiocese of Baltimore
- School day
- About 6.5 hours
- School year
- 173 days
- Graduates going to 4-year colleges
- About 95% (the school's estimate for the class before the survey)
- Library
- Yes
Reviews
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How it compares
- Smaller classes than 64% of Catholic high schools in Maryland (10 students per teacher).
- Larger than 73% of Catholic high schools in Maryland.
- Compared with 22 Catholic high schools in Maryland.
Students by survey year
Total students reported in official records since 2011–12.
Students by grade
Student body
Help paying tuition in Maryland
These state programs can help pay private school tuition. Only participating schools can accept them, so ask Mount Saint Joseph High School whether it takes part.
- BOOST Scholarship Program · Voucher or 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 Mount Saint Joseph High School
What grades does Mount Saint Joseph High School serve?
Mount Saint Joseph High School serves grades 9–12.
How many students attend Mount Saint Joseph High School?
About 798 students, with 10 students per teacher, according to official records.
How much is tuition at Mount Saint Joseph High School?
Call the school to ask about tuition, financial aid and payment plans. Maryland 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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