St. Marys High School
Diocesan school · Grades 9–12
Annapolis, MD
113 Duke Of Gloucester St, Annapolis, MD 21401
Overall grade: B
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- B-Class size
- ACollege-going
- A-Years serving families
- B+Diversity
What stands out
- 100% of graduates go to four-year colleges
- Serving families in Annapolis since at least 2011
St. Marys High School is a Catholic diocesan school in Annapolis, Maryland, for students from 9th grade through 12th grade. It has about 511 students and around 15 students per teacher. Its enrollment has held steady since 2011–12. The school is part of the Archdiocese of Baltimore. The school reports that about 100% of its graduates go on to four-year colleges. Students attend about 7.5 hours a day, 175 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
- 511
- Teachers
- 35 (full-time equivalent)
- Students per teacher
- 14.6
- Boys and girls
- Coed · 227 girls, 284 boys
- Religious affiliation
- Catholic · Diocesan school
- Diocese
- Archdiocese of Baltimore
- School day
- About 7.5 hours
- School year
- 175 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 50% 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
Member of
- National Catholic Educational Association
Help paying tuition in Maryland
These state programs can help pay private school tuition. Only participating schools can accept them, so ask St. Marys 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 St. Marys High School
What grades does St. Marys High School serve?
St. Marys High School serves grades 9–12.
How many students attend St. Marys High School?
About 511 students, with 15 students per teacher, according to official records.
How much is tuition at St. Marys 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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