St. Mary Catholic School
Diocesan school · Grades Pre-K–12
Dell Rapids, SD
812 N State Ave, Dell Rapids, SD 57022
Overall grade: B-
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- BClass size
- A-College-going
- BYears serving families
- BDiversity
What stands out
- 90% of graduates go to four-year colleges
- One school from pre-K through 12th grade
St. Mary Catholic School is a Catholic diocesan school in Dell Rapids, South Dakota, for students from pre-K through 12th grade. It has about 222 students and around 14 students per teacher. Its enrollment has held steady since 2019–20. The school is part of the Diocese of Sioux Falls. The school reports that about 90% of its graduates go on to four-year colleges. Students attend about 7 hours a day, 170 days a year.
At a glance
- Grades
- Grades Pre-K–12
- Students
- 222
- Teachers
- 15.9 (full-time equivalent)
- Students per teacher
- 14
- Boys and girls
- Coed · 88 girls, 134 boys
- Religious affiliation
- Catholic · Diocesan school
- Diocese
- Diocese of Sioux Falls
- School day
- About 7 hours
- School year
- 170 days
- Graduates going to 4-year colleges
- About 90% (the school's estimate for the class before the survey)
- Library
- Yes
Reviews
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How it compares
- A smaller school: fewer students than 70% of Catholic schools nationwide.
- Compared with 384 Catholic schools nationwide.
Students by survey year
Total students reported in official records since 2019–20.
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. Mary Catholic School
What grades does St. Mary Catholic School serve?
St. Mary Catholic School serves grades Pre-K–12.
How many students attend St. Mary Catholic School?
About 222 students, with 14 students per teacher, according to official records.
How much is tuition at St. Mary Catholic School?
Call the school to ask about tuition, financial aid and payment plans.
Official record · Updated October 2026 · Official search · Something wrong? Tell us