St. Marys School
Diocesan school · Grades Pre-K–8
Owatonna, MN
730 S Cedar Ave, Owatonna, MN 55060
Overall grade: B+
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- B+Class size
- A-Years serving families
- B+Diversity
What stands out
- Serving families in Owatonna since at least 2011
In Owatonna, Minnesota, St. Marys School is a Catholic diocesan school for students from pre-K through 8th grade. About 262 students attend, with roughly 13 students per teacher. It has been listed in official private school records since 2011–12. The school is part of the Diocese of Winona. The school day runs about 6.5 hours, 170 days a year. Minnesota has programs that can help pay tuition; ask the school whether it takes part.
At a glance
- Grades
- Grades Pre-K–8
- Students
- 262
- Teachers
- 20.9 (full-time equivalent)
- Students per teacher
- 12.5
- Boys and girls
- Coed · 122 girls, 140 boys
- Religious affiliation
- Catholic · Diocesan school
- Diocese
- Diocese of Winona
- School day
- About 6.5 hours
- School year
- 170 days
- Library
- Yes
Reviews
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How it compares
- Larger than 79% of Catholic elementary schools in Minnesota.
- Compared with 128 Catholic elementary schools in Minnesota.
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 Minnesota
These state programs can help pay private school tuition. Only participating schools can accept them, so ask St. Marys School whether it takes part.
- K-12 Education Subtraction (private school tuition) · Tax credit or deduction
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 School
What grades does St. Marys School serve?
St. Marys School serves grades Pre-K–8.
How many students attend St. Marys School?
About 262 students, with 13 students per teacher, according to official records.
How much is tuition at St. Marys School?
Call the school to ask about tuition, financial aid and payment plans. Minnesota 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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