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
Estimated academic score. This school does not have standardized test data. Based on MO statewide data. Learn more
Enrollment
271
Student-Teacher
11:1
Score
7.2
Grades
9th – 12th
Enrollment
271
Student-Teacher
11:1
Score
7.2
Grades
9th – 12th
Updated
2021-22
Updated 2021-22
How this school compares
In St. Louis
#23 of 74
public schools
Missouri high schools
#16 of 52
About St Mary's High School
ST MARY'S HIGH SCHOOL stands out as a high-performing institution in Saint Louis, serving 271 students in grades 9 through 12. With an impressive state ranking of #24 out of 399 Missouri high schools, placing it in the 94th percentile, the school demonstrates strong academic achievement within the state's educational landscape. The school maintains an intimate learning environment with a favorable 11-to-1 student-teacher ratio, supported by 25 full-time equivalent teachers.
This smaller class size allows for more personalized attention and stronger relationships between students and faculty. St. Mary's has earned a solid 7.3 out of 10 rating from MySchoolScout, reflecting its commitment to educational excellence.
The school serves a diverse community where families are working to build better futures for their children. Located in the 63111 zip code area, St. Mary's draws from a neighborhood with a median household income of $38,195 and serves many families facing economic challenges, with a poverty rate of 25.8 percent in the surrounding area.
Situated on South Grand Boulevard in Missouri's largest city, St. Mary's High School operates in an urban environment that provides students with access to the cultural and educational opportunities that come with big-city living while maintaining the close-knit feel of a smaller school community.
What Parents Should Know
As a private school, St Mary's High School operates independently from the local public school district. Families considering this school should inquire about tuition costs, financial aid availability, and the admissions process. Private schools are not required to follow the same curriculum standards as public schools, which can be either an advantage or a consideration depending on your priorities.
Financial Overview
Source: IRS Form 990 (2012 filing)
- Per-Pupil Spending
- Total expenses ÷ enrollment
- $98
- Per-Pupil Revenue
- Total revenue ÷ enrollment
- $186
- Financial Health
- Revenue-to-expense ratio (>1.0 = surplus)
- 1.90x — Strong
- Total Assets
- End-of-year total assets from IRS filing
- $87,217
Financial data from IRS Form 990 filings via ProPublica Nonprofit Explorer. Per-pupil figures based on current enrollment of 271 students. Not all private schools file Form 990.
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 | 6.4 |
| Kairos High | — |
| ROOSEVELT HIGH | 4.5 |
| GATEWAY SCIENCE ACADEMY HIGH | 7.6 |
| COLLEGIATE SCHOOL OF MED/BIO | 8.8 |
| CENTRAL VISUAL/PERF. ARTS HIGH | 5.3 |
| MO School for the Blind - HS | 6.5 |
| MCKINLEY CLASS. LEADERSHIP AC. | 7.0 |
| COMMUNITY ACCESS JOB TRAINING | 7.9 |
| BAYLESS SENIOR HIGH | 6.4 |
| GATEWAY HIGH | 5.7 |
| LIFT FOR LIFE ACADEMY HIGH SCH | 6.5 |
| HANCOCK SR. HIGH | 5.9 |
| AFFTON HIGH | 3.7 |
| GATEWAY/HUBERT WHEELER SCHOOL | — |
| ST. LOUIS CHILDREN'S HOSPITAL | — |
| METRO HIGH | 9.1 |
| GRAND CENTER ARTS ACADEMY HIGH | 6.1 |
| KIPP ST. LOUIS HIGH | 5.2 |
| CONFLUENCE PREPARATORY ACADEMY | 6.5 |
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
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.
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 6.4/10, 1.3 miles away), with a comparable rating. Additionally, ROOSEVELT HIGH (rated 4.5/10, 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 | 6.5 |
| ST STEPHEN PROTOMARTYR SCHOOL St. Louis | 0.7 mi | 6.2 |
| SOUTH CITY St. Louis | 0.8 mi | 6.1 |
| LONG MIDDLE COMMUNITY ED. CTR. St. Louis | 0.9 mi | 5.9 |
| Woerner Elem St. Louis | 1.0 mi | 4.6 |
| OAK HILL ELEM. St. Louis | 1.2 mi | 4.9 |
| MERAMEC ELEM. St. Louis | 1.1 mi | 6.1 |
| MOMENTUM ACAD TOWER GRVE SOUTH St. Louis | 1.3 mi | 4.4 |
| LYON AT BLOW ELEM. St. Louis | 1.4 mi | 7.2 |
| FROEBEL ELEM. St. Louis | 1.3 mi | 4.0 |
| CARNAHAN SCH. OF THE FUTURE St. Louis | 1.3 mi | 6.4 |
| Carnahan Middle St. Louis | 1.3 mi | 8.1 |
| MARIAN MIDDLE SCHOOL St. Louis | 1.7 mi | 7.7 |
| MOMENTUM ACAD GRAVOIS PARK St. Louis | 1.6 mi | 6.1 |
| MANN ELEM. St. Louis | 1.9 mi | 6.2 |
| ROOSEVELT HIGH St. Louis | 1.9 mi | 4.5 |
| MONROE ELEM. St. Louis | 1.7 mi | 5.5 |
| Kairos High St. Louis | 1.7 mi | — |
| KAIROS ACADEMIES St. Louis | 1.7 mi | 5.5 |
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
Community Profile
The community surrounding St Mary's High School has a median household income of $43,295. It is a community where 20% of adults hold a bachelor's degree or higher. The median home value in the area is $115,500, with a median rent of $846/month. The area has a poverty rate of 22.4%, indicating some economic challenges in the community. The average commute for residents is 26 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| ASH GROVE HIGH Ash Grove, MO | 7.2 |
| CABOOL HIGH Cabool, MO | 7.2 |
| ORAN HIGH SCHOOL Oran, MO | 7.2 |
| SMITHTON HIGH Smithton, MO | 7.2 |
| ST PIUS X HIGH SCHOOL Kansas City, MO | 7.2 |
| SWEET SPRINGS HIGH Sweet Springs, MO | 7.2 |
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 is ranked #90 out of 399 private schools in MO.
What is St Mary's High School's MySchoolScout rating?
St Mary's High School has a composite rating of 7.2 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. 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
- Walk Score
- 67 Somewhat Walkable
- Transit Score
- 39 Some Transit
- Bike Score
- 39 Somewhat Bikeable
- City Safety
- High (7,108/100K)
Powered by 
FBI UCR 2024. City-level (St. Louis). Data >1 year old.
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
- Phone
- (314) 481-8400
- Data Year
- 2022–2023
Resources & Links
How We Rate Schools
Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
Read our full methodologyRelated reading
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