The brief
A private high school in Mount Calvary, WI serving grades 9th – 12th.
It ranks 2 of 616 schools in Wisconsin.
St Lawrence Seminary High School is a private school: it enrolls by application and tuition, and its rating comes from the private-school model, which is not comparable with a public rating.
About this school's datarating: low confidence · 3 sources, 2019–2024
Every number on this page comes from a published source with a stated period. Where a source is partial, aging, an estimate, or describes a surrounding area rather than the school, that limitation is named here.
- Estimated academic score. This school does not have standardized test data. Based on WI statewide data. Learn more
- What this rating measures: classroom size, instructional time, student diversity, community resources, and school characteristics. Private schools are ranked against other private schools in WI.
- Component weights adjusted due to data availability.
Score basis: private school model. Data coverage: 80% of scoring components had data. Components scored: 4 of 5. Ranking pool: private schools in WI.
- School directory (enrollment, grades, staff, contact)
- NCES Private School Universe Survey (PSS) · SY 2023–24 · Low confidence
- Vintage not available. Do not use this measure alone.
- MySchoolScout rating and rank
- MySchoolScout ranking model · Low confidence
- Vintage not available. Do not use this measure alone.
- Available for part of the eligible units; results may not represent the full area.
- Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
- Neighborhood (income, housing, education)
- U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
- Older source: ACS 2019–2023 5-year estimates. Use as historical context.
- Reported for the ZCTA for ZIP 53057; this does not measure the attendance area.
Evidence periods: Rating mixed/unknown input periods; assessments vintage unavailable; directory SY 2023–24
The neighborhood
Where it sits, and what the area looks like.The area
- Median income
- $99,107
- Median home value
- $229,800
- Median rent
- $688/mo
- College educated
- 18.8%
- Homeownership
- 95.4%
- Poverty rate
- 6%
U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 53057; this is area context, not an attendance boundary.
Getting around
- Walk Score
- 10
- Car-Dependent
- Bike Score
- 10
- Somewhat Bikeable
- County reported crime
- 1,112/100K
- Reported Part-1 offenses (violent + property + arson) per 100,000 county residents, counting every city police department, sheriff's office and county police department that reported a full year to the FBI Uniform Crime Reporting program. Shown only where those agencies cover at least 80% of the county's residents. Not a school safety rating.
Walk, transit and bike scores by
FBI Uniform Crime Reporting · 2025 · county context, not school-level safety or attendance eligibility. Source details
Programs and who goes here
What the campus offers, and who it enrolls.Who goes here
- Asian48%
- Hispanic36%
- White12%
- Two or More3%
- Black1%
Enrollment mix: NCES Private School Universe Survey (PSS).
The record
What is on file, and where each number came from.The public record
What's said publicly about St Lawrence Seminary High School
Synthesized from public, attributable sources. Updated May 2026.
Sources (1)
Questions families ask
What grades does St Lawrence Seminary High School serve?
St Lawrence Seminary High School serves students in grades 9th through 12th.
How many students attend St Lawrence Seminary High School?
St Lawrence Seminary High School has an enrollment of approximately 136 students.
What is the student-teacher ratio at St Lawrence Seminary High School?
The student-teacher ratio at St Lawrence Seminary High School is 6.5:1. A lower ratio generally means more individual attention per student. The national average is approximately 11:1 for private schools.
How does St Lawrence Seminary High School rank in WI?
St Lawrence Seminary High School ranks #2 of 616 private schools in WI.
What is St Lawrence Seminary High School's MySchoolScout rating?
St Lawrence Seminary High School has a current MySchoolScout rating of 9.4 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
Is St Lawrence Seminary High School a private school?
Yes, St Lawrence Seminary High School is a private all-boys school with a Roman Catholic affiliation. Private schools are not required to participate in state standardized testing, so academic performance data may be limited compared to public schools.
Is St Lawrence Seminary High School a religious school?
St Lawrence Seminary High School has a Roman Catholic religious affiliation.
School facts
- Grades
- 9th – 12th
- Enrollment
- 136
- Gender split
- 100% M / 0% F
- Student-teacher ratio
- 6.5:1
- Teachers (FTE)
- 21
- Type
- Private
- Coed status
- All-Boys
- Affiliation
- Roman Catholic
- School day
- 9.2 hours
- Days per year
- 172 days
- Setting
- Distant Rural
- County
- Fond du Lac County
- Phone
- (920) 753-7500
- Area population (ZIP 53057)
- 1,905
- Area average commute
- 23.5 min
- Area median age
- 50
NCES Private School Universe Survey (PSS) (SY 2023–24).
Related reading
Data from NCES Common Core of Data, Wisconsin Dept. of Education, and U.S. Census ACS for the 2023–24 school year. Rankings computed by MySchoolScout. See all data sources.