Luther Preparatory School
Lutheran (Wisconsin Synod) school · Grades 9–12
Watertown, WI
1300 Western Ave, Watertown, WI 53094
Overall grade: A
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- AClass size
- B+College-going
- A-Years serving families
- B+Diversity
What stands out
- The largest Christian school in Watertown
- Smaller classes than 72% of Christian schools in Wisconsin
- Serving families in Watertown since at least 2011
In Watertown, Wisconsin, Luther Preparatory School is a Lutheran (Wisconsin Synod) private school for students from 9th grade through 12th grade. About 409 students attend, with roughly 9 students per teacher, smaller classes than 72% of Christian high schools in Wisconsin. Its enrollment has held steady since 2011–12. The school reports that about 80% of its graduates go on to four-year colleges. The school day runs about 8 hours, 168 days a year. Wisconsin has programs that can help pay tuition; ask the school whether it takes part.
At a glance
- Grades
- Grades 9–12
- Students
- 409
- Teachers
- 43.5 (full-time equivalent)
- Students per teacher
- 9.4
- Boys and girls
- Coed · 226 girls, 183 boys
- Religious affiliation
- Lutheran (Wisconsin Synod)
- School day
- About 8 hours
- School year
- 168 days
- Graduates going to 4-year colleges
- About 80% (the school's estimate for the class before the survey)
- Library
- Yes
Reviews
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How it compares
- Smaller classes than 72% of Christian high schools in Wisconsin (9 students per teacher).
- Larger than 69% of Christian high schools in Wisconsin.
- Compared with 26 Christian high schools in Wisconsin.
Students by survey year
Total students reported in official records since 2011–12.
Students by grade
Student body
Help paying tuition in Wisconsin
These state programs can help pay private school tuition. Only participating schools can accept them, so ask Luther Preparatory School whether it takes part.
- Parental Choice 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 Luther Preparatory School
What grades does Luther Preparatory School serve?
Luther Preparatory School serves grades 9–12.
How many students attend Luther Preparatory School?
About 409 students, with 9 students per teacher, according to official records.
How much is tuition at Luther Preparatory School?
Call the school to ask about tuition, financial aid and payment plans. Wisconsin 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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