St. Martins Lutheran School
Lutheran (Wisconsin Synod) school · Grades Pre-K–8
Watertown, SD
1200 2nd St NE, Watertown, SD 57201
Overall grade: B-
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- BClass size
- A-Years serving families
- B-Diversity
What stands out
- The largest Christian school in Watertown
- Growing: enrollment up 44% since 2011–12
- Serving families in Watertown since at least 2011
In Watertown, South Dakota, St. Martins Lutheran School is a Lutheran (Wisconsin Synod) private school for students from pre-K through 8th grade. About 164 students attend, with roughly 16 students per teacher. Enrollment is up about 44% since 2011–12. The school day runs about 7 hours, 170 days a year.
At a glance
- Grades
- Grades Pre-K–8
- Students
- 164
- Teachers
- 10.6 (full-time equivalent)
- Students per teacher
- 15.5
- Boys and girls
- Coed · 87 girls, 77 boys
- Religious affiliation
- Lutheran (Wisconsin Synod)
- School day
- About 7 hours
- School year
- 170 days
- Library
- Yes
Reviews
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How it compares
- Larger than 88% of Christian elementary schools in South Dakota.
- Compared with 17 Christian elementary schools in South Dakota.
Students by survey year
Total students reported in official records since 2011–12.
Students by grade
Student body
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. Martins Lutheran School
What grades does St. Martins Lutheran School serve?
St. Martins Lutheran School serves grades Pre-K–8.
How many students attend St. Martins Lutheran School?
About 164 students, with 16 students per teacher, according to official records.
How much is tuition at St. Martins Lutheran School?
Call the school to ask about tuition, financial aid and payment plans.
Official record · Updated October 2026 · Official search · Something wrong? Tell us
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