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Very Good

#90 of 399 private schools in MO

Top 22% of private schools

St Mary's High School

High School · St. Louis, MO

A private high school in St. Louis, MO serving grades 9th – 12th.

Private

4701 S GRAND BLVD, St. Louis, MO 63111

  • 11:1 student-teacher ratio

Academics

Preliminary

What this rating measures

This rating reflects classroom size, instructional time, student diversity, community resources, and school characteristics. Private schools are ranked against other private schools in MO.

Classroom Attention
?Student-teacher ratio calibrated against other private schools. Lower ratios mean more individual attention. (30% of overall score)
B6.1 / 10
View breakdown
Student-Teacher Ratio11:1
Instructional Commitment
?Total annual instructional hours based on school day length and days per year. (15% of overall score)
B-5.0 / 10
View breakdown
School Day Length6.8 hours
Annual Instructional Hours1,196.8
Diversity & Inclusion
?Racial and ethnic diversity of the student body using Simpson's diversity index. (20% of overall score)
A+9.8 / 10
View breakdown
Diversity Index66%
Community Context

Data not available

School Profile
?Enrollment size and grade span breadth — indicators of program depth and peer community. (15% of overall score)
A-8.3 / 10
View breakdown
Enrollment271
View data sources

Score basis: Private school model

Data coverage: 80% of scoring components had data

Components scored: 4 of 5

Ranking pool: Private schools in MO

Test scores

Most recent published year. School vs. MO average.

Test score data not yet available for this school.

How we rate schools

A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.

See how we rate

The neighborhood

Where St Mary's High School sits, and what the surrounding area looks like.

Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries. Open the St. Louis map →

Getting around & local context

  • Walk 67Somewhat Walkable
  • Transit 39Some Transit
  • Bike 45Somewhat Bikeable
  • City Safety: High7,108/100K

Powered byWalk Score

FBI Uniform Crime Reporting · 2024 · city context (St. Louis), not school-level safety or attendance eligibility. Source details

Source period: 2024. Freshness not available.

Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)

Median income

$43,295

Median home value

$115,500

Median rent

$846/mo

College educated

19.5%

Homeownership

39.8%

Poverty rate

22.4%

ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 63111; this is area context, not an attendance boundary.

Programs & students

Student demographicsNCES Private School Universe Survey (PSS) (SY 2021–22)

Black45.4%
White34.3%
Hispanic9.6%
Two or More7.4%
Asian2.6%
Native American0.4%
Pacific Islander0.4%

Source: NCES Private School Universe Survey (PSS)

Compare nearby

Nearby same-level schools

4 from a 5-mile search

SchoolScoreGradesDistanceEnrollmentCompare
Carnahan Sch. of the FutureEnrollment path unverified6.1121.3 mi54Compare →
Kairos HighCharter · enrollment unverified7.09–101.7 mi234Compare →
Roosevelt HighEnrollment path unverified3.79–121.9 mi473Compare →
Collegiate School of Med/bioEnrollment path unverified9.19–122.2 mi335Compare →

Distance is proximity only; it is not attendance eligibility.

Enrollment path unverified: Potential public school; its attendance or application path has not been classified.

Charter · enrollment unverified: Potential charter option; enrollment requirements have not been verified.

St Mary's High School is listed in St. Louis, MO; verify the current enrollment path directly.

About St Mary's High School

St Mary's High School is a private high school in St. Louis, MO, serving approximately 271 students in grades 9th-12th with a 11:1 student-teacher ratio. It holds a MySchoolScout rating of 7.2 out of 10 and ranks #90 of 399 private schools in MO.

Frequently asked questions

Common questions about St Mary's High School

What grades does St Mary's High School serve?

St Mary's High School serves students in grades 9th through 12th.

How many students attend St Mary's High School?

St Mary's High School has an enrollment of approximately 271 students.

What is the student-teacher ratio at St Mary's High School?

The student-teacher ratio at St Mary's High School is 11:1. A lower ratio generally means more individual attention per student. The national average is approximately 11:1 for private schools.

How does St Mary's High School rank in MO?

St Mary's High School ranks #90 of 399 private schools in MO.

What is St Mary's High School's MySchoolScout rating?

St Mary's High School has a current MySchoolScout rating of 7.2 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.

Is St Mary's High School a private school?

Yes, St Mary's 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 Mary's High School a religious school?

St Mary's High School has a Roman Catholic religious affiliation.

School factsNCES Private School Universe Survey (PSS) (SY 2021–22)

Grades
9th – 12th
Enrollment
271
Gender Split
100% M / 0% F
Student-Teacher Ratio
11:1
Teachers (FTE)
25
Type
private
Coed Status
all-boys
Affiliation
Roman Catholic
School Day
6.8 hours
Days Per Year
176 days
Setting
Large City
County
St. Louis city
Area population (ZIP 63111)
19,093
Area average commute
26.2 min
Area median age
35.6
About this school's data

Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.

School directory (enrollment, grades, staff, contact)
NCES Private School Universe Survey (PSS) · SY 2021–22 · 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 63111; this does not measure the attendance area.

Evidence periods: Rating mixed/unknown input periods; assessments vintage unavailable; directory SY 2021–22

About our data · How we calculate scores

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