St. Mark School
Diocesan school · Grades Pre-K–8
Catonsville, MD
26 Melvin Ave, Catonsville, MD 21228
Overall grade: B
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- BClass size
- B+Years serving families
- ADiversity
What stands out
- Serving families in Catonsville since at least 2011
St. Mark School is a Catholic diocesan school in Catonsville, Maryland, for students from pre-K through 8th grade. It has about 463 students and around 17 students per teacher. Enrollment has grown about 12% since 2011–12. The school is part of the Archdiocese of Baltimore. Students attend about 7 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 Pre-K–8
- Students
- 463
- Teachers
- 28.1 (full-time equivalent)
- Students per teacher
- 16.5
- Boys and girls
- Coed · 228 girls, 235 boys
- Religious affiliation
- Catholic · Diocesan school
- Diocese
- Archdiocese of Baltimore
- School day
- About 7 hours
- School year
- 175 days
Reviews
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How it compares
- Larger than 86% of Catholic elementary schools in Maryland.
- Compared with 93 Catholic elementary 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. Mark 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. Mark School
What grades does St. Mark School serve?
St. Mark School serves grades Pre-K–8.
How many students attend St. Mark School?
About 463 students, with 17 students per teacher, according to official records.
How much is tuition at St. Mark 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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