Very Good
#90 of 399 private schools in MO
Top 22% of private schools
St Mary's High School
High School
4701 S GRAND BLVD, St. Louis, MO 63111
Enrollment
271
Student-Teacher
11:1
Score
7.2
Grades
9th – 12th
Enrollment
271
Student-Teacher
11:1
Score
7.2
Grades
9th – 12th
Data vintage
2021-22
Data vintage2021-22
How this school compares
Missouri private schools
#90 of 399
In St. Louis
#23 of 74
public schools
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St Mary's High School
High School in St. Louis · grades 9th – 12th. Start here, then compare fit against nearby and district options.
St Cecilia School
0.5 mi away. Use as a geographic alternative in the same move search.
Woodward Elem.
0.7 mi away. Use as a geographic alternative in the same move search.
About St Mary's High School
St Mary's High School is a private high school in St. Louis, MO. St Mary's High School serves approximately 271 students, and covers grades 9th-12th, and has a 11:1 student-teacher ratio.
St Mary's High School has a current MySchoolScout rating of 7.2 out of 10 and ranks #90 of 399 private schools in MO.
- This school 7.2 · Very Good
- MO avg 6.4
What Parents Should Know
St Mary's High School is private, so it runs independently of the local district and sets its own curriculum. That freedom cuts both ways depending on what you want for your child. If you're considering it, start with the practical questions: tuition, financial aid, and how admissions work.
Compare to Public Schools
BetaHow St Mary's High School compares to 42 public schools serving similar grades in St. Louis, MO
Student Demographics
Nearby High Schools
| School | Rating |
|---|---|
| St Mary's High School (this school) | 7.2 |
| CARNAHAN SCH. OF THE FUTURE | 6.1 |
| Kairos High | 7.0 |
| ROOSEVELT HIGH | 3.7 |
| GATEWAY SCIENCE ACADEMY HIGH | 7.4 |
| COLLEGIATE SCHOOL OF MED/BIO | 9.1 |
| CENTRAL VISUAL/PERF. ARTS HIGH | 5.2 |
| MO School for the Blind - HS | 4.4 |
| MCKINLEY CLASS. LEADERSHIP AC. | 8.4 |
| COMMUNITY ACCESS JOB TRAINING | 3.8 |
| BAYLESS SENIOR HIGH | 6.7 |
| GATEWAY HIGH | 4.9 |
| LIFT FOR LIFE ACADEMY HIGH SCH | 5.8 |
| HANCOCK SR. HIGH | 7.0 |
| AFFTON HIGH | 4.0 |
| GATEWAY/HUBERT WHEELER SCHOOL | — |
| ST. LOUIS CHILDREN'S HOSPITAL | — |
| METRO HIGH | 8.8 |
| GRAND CENTER ARTS ACADEMY HIGH | 5.8 |
| KIPP ST. LOUIS HIGH | 3.4 |
| CONFLUENCE PREPARATORY ACADEMY | 4.4 |
Showing 20 of 42 schools. View all schools in St. Louis
Demographics sourced from NCES Private School Survey (PSS) and Common Core of Data (CCD). Comparisons are based on enrollment-weighted averages.
Score Breakdown
PreliminaryWhat 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.
Data Unavailable
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
Test score data not yet available for this school.
Student Demographics NCES PSS (SY 2021-22)
Source: NCES Private School Survey (PSS)
Location
4701 S GRAND BLVD, St. Louis, MO 63111
Nearby Alternatives
Families considering St Mary's High School may also want to explore other high schools in the area. CARNAHAN SCH. OF THE FUTURE (rated 6.1/10, 1.3 miles away), a more accessible option. Additionally, ROOSEVELT HIGH (rated 3.7/10, 1.9 miles away), a more accessible option. For more schools in St. Louis, see our St. Louis schools guide .
Nearby Schools
20 within 1.7 mi| School | Distance | Rating |
|---|---|---|
| ST CECILIA SCHOOL St. Louis | 0.5 mi | 6.9 |
| WOODWARD ELEM. St. Louis | 0.7 mi | 4.9 |
| ST STEPHEN PROTOMARTYR SCHOOL St. Louis | 0.7 mi | 6.2 |
| SOUTH CITY St. Louis | 0.8 mi | 4.4 |
| LONG MIDDLE COMMUNITY ED. CTR. St. Louis | 0.9 mi | 4.1 |
| Woerner Elem St. Louis | 1.0 mi | 5.4 |
| OAK HILL ELEM. St. Louis | 1.2 mi | 6.1 |
| MERAMEC ELEM. St. Louis | 1.1 mi | 5.7 |
| MOMENTUM ACAD TOWER GRVE SOUTH St. Louis | 1.3 mi | 5.9 |
| LYON AT BLOW ELEM. St. Louis | 1.4 mi | 4.6 |
| FROEBEL ELEM. St. Louis | 1.3 mi | 4.4 |
| CARNAHAN SCH. OF THE FUTURE St. Louis | 1.3 mi | 6.1 |
| Carnahan Middle St. Louis | 1.3 mi | 6.8 |
| MARIAN MIDDLE SCHOOL St. Louis | 1.7 mi | 7.7 |
| MOMENTUM ACAD GRAVOIS PARK St. Louis | 1.6 mi | 5.8 |
| MANN ELEM. St. Louis | 1.9 mi | 5.8 |
| ROOSEVELT HIGH St. Louis | 1.9 mi | 3.7 |
| MONROE ELEM. St. Louis | 1.7 mi | 4.5 |
| Kairos High St. Louis | 1.7 mi | 7.0 |
| KAIROS ACADEMIES St. Louis | 1.7 mi | 3.4 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 63111 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$43,295
Median Home Value
$115,500
Median Rent
$846/mo
Population
19,093
College Educated
19.5%
Homeownership
39.8%
Avg Commute
26.2 min
Poverty Rate
22.4%
Median Age
35.6
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| LOUISIANA HIGH Louisiana, MO | 7.2 |
| RICH HILL HIGH Rich Hill, MO | 7.2 |
| ST PIUS X HIGH SCHOOL Kansas City, MO | 7.2 |
| CLEARWATER HIGH Piedmont, MO | 7.3 |
| CRISTO REY KANSAS CITY Kansas City, MO | 7.3 |
| MARION C. EARLY HIGH Morrisville, MO | 7.3 |
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.
Explore More Schools
Neighborhood Context
Powered by 
Quick Facts NCES 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
- Phone
- (314) 481-8400
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