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Excellent

#17 of 399 private schools in MO

Top 4% of private schools

St Louis Priory School

High School

500 S MASON RD, St. Louis, MO 63141

Private Estimated Score

Estimated academic score. This school does not have standardized test data. Based on MO statewide data. Learn more

Enrollment

307

Student-Teacher

6.5:1

Score

8.4

Grades

7th – 12th

Updated 2021-22

How this school compares

In St. Louis

#6 of 74

public schools

Missouri high schools

#5 of 52

About St Louis Priory School

St. Louis Priory School serves 307 students in grades 7 through 12, offering an intimate educational environment with its exceptional 6.5:1 student-teacher ratio and 47 dedicated faculty members. The school has earned recognition as the 23rd highest-ranked school out of 399 in Missouri, placing it in the 94th percentile statewide with a solid 7.3 out of 10 MySchoolScout rating.

This high school provides a personalized learning experience where students can receive individualized attention from their teachers. The remarkably low student-teacher ratio suggests strong opportunities for mentorship and academic support throughout the middle and high school years. St.

Louis Priory School is situated in an affluent suburban community where education is clearly valued. The surrounding neighborhood reflects a well-educated population, with 70% of residents holding bachelor's degrees or higher and a median household income of $120,648. The area's low poverty rate of just 5.1% and median home values of $546,200 indicate a stable, prosperous community that prioritizes educational excellence.

Located on South Mason Road in this thriving suburban setting, the school benefits from being part of a community where families have chosen to invest significantly in their children's educational futures.

What Parents Should Know

With a student-teacher ratio of 6.5:1, St Louis Priory School offers a notably low ratio compared to the national average. This typically means smaller class sizes and more opportunities for one-on-one interaction between students and teachers.

As a private school, St Louis Priory 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.

Compare to Public Schools

Beta

How St Louis Priory School compares to 91 public schools serving similar grades in St. Louis, MO

Student-Teacher Ratio
6.5:1
This School
vs
15.2:1
Public Avg
Avg School Size
307
This School
vs
486
Public Avg
Avg School Scout Rating
8.4
This School
vs
6.1
Public Avg

Student Demographics

White 81.1% vs 0%
Asian 5.5% vs 0%
Black 2.3% vs 0%
Hispanic 2% vs 0%
St Louis Priory School St. Louis Public Avg

Nearby High Schools

School Rating
St Louis Priory School (this school) 8.4
NORTH HIGH 6.8
LADUE HORTON WATKINS HIGH 8.9
LADUE MIDDLE 7.9
HIXSON MIDDLE 8.3
RITENOUR SR. HIGH 5.2
WEBSTER GROVES HIGH 8.4
RITENOUR MIDDLE 5.5
TRUMAN MIDDLE SCHOOL 4.0
WASHINGTON ELEM. 5.7
LINDBERGH SR. HIGH 5.8
ROGERS MIDDLE 4.4
NORMANDY HIGH 6.1
AFFTON HIGH 3.7
COMMUNITY ACCESS JOB TRAINING 7.9
ROBERT H. SPERRENG MIDDLE 4.0
KIPP TRIUMPH ACADEMY 5.7
BUSCH MS CHARACTER ATHLETICS 6.7
JEFFERSON ELEM. 5.0
THE INNOVATION SCHOOL AT CV 7.8
LACLEDE ELEM. 5.5

Showing 20 of 91 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.

Classroom Attention
? Student-teacher ratio calibrated against other private schools. Lower ratios mean more individual attention. (30% of overall score)
A 9.1 / 10
View breakdown
Student-Teacher Ratio 6.5:1
Instructional Commitment
? Total annual instructional hours based on school day length and days per year. (15% of overall score)
A- 7.9 / 10
View breakdown
School Day Length 8.5 hours
Annual Instructional Hours 1,266.5
Diversity & Inclusion
? Racial and ethnic diversity of the student body using Simpson's diversity index. (20% of overall score)
A- 8.0 / 10
View breakdown
Diversity Index 33%
Community Context

Data Unavailable

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
Enrollment 307
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)

White 81.1%
Two or More 9.1%
Asian 5.5%
Black 2.3%
Hispanic 2.0%

Source: NCES Private School Survey (PSS)

Location

500 S MASON RD, St. Louis, MO 63141

Nearby Alternatives

Families considering St Louis Priory School may also want to explore other high schools in the area. CENTRAL HIGH (rated 7.6/10, 2.0 miles away, in nearby Chesterfield), with a comparable rating. Another option is WHITFIELD SCHOOL (rated 7.1/10, 0.7 miles away), a more accessible option. Additionally, DE SMET JESUIT HIGH SCHOOL (rated 6.8/10, 2.0 miles away), a more accessible option. For more schools in St. Louis, see our St. Louis schools guide .

Nearby Schools

20 within 2.4 mi
School Distance Rating
SAUL MIROWITZ JEWISH COMMUNITY SCHOOL St. Louis 0.4 mi 8.2
MASON RIDGE ELEM. Town & Country 0.6 mi 7.6
WHITFIELD SCHOOL St. Louis 0.7 mi 7.1
PRINCIPIA SCHOOL St. Louis 0.9 mi
ROSSMAN SCHOOL St. Louis 0.7 mi 7.7
PROMISE CHRISTIAN ACADEMY Town And Country 0.9 mi 7.0
COUNTRYSIDE MONTESSORI SCHOOL St. Louis 1.4 mi
BELLERIVE ELEM. Creve Coeur 1.8 mi 6.8
THE MOOG CENTER FOR DEAF EDUCATION St. Louis 1.5 mi
WESTMINSTER CHRISTIAN ACADEMY Town And Country 1.5 mi 6.1
NORTHEAST MIDDLE Creve Coeur 1.7 mi 6.0
CENTRAL HIGH Chesterfield 2.0 mi 7.6
CHESTERFIELD MONTESSORI SCHOOL Chesterfield 2.0 mi 7.0
CENTRAL MIDDLE Chesterfield 2.2 mi 7.8
DE SMET JESUIT HIGH SCHOOL St. Louis 2.0 mi 6.8
VISITATION ACADEMY St. Louis 2.1 mi 6.8
HIRAM NEUWOEHNER Town And Country 2.1 mi 6.8
EXTERNAL SITES Town and Country 2.2 mi 6.7
INCARNATE WORD PARISH SCHOOL Chesterfield 2.6 mi 5.5
COVENANT CHRISTIAN SCHOOL Town And Country 2.4 mi 4.1

Neighborhood Census ACS (2019-2023)

Census data for ZIP 63141 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$122,917

Median Home Value

$571,900

Median Rent

$1,456/mo

Population

20,640

College Educated

69.1%

Homeownership

68.6%

Avg Commute

18.5 min

Poverty Rate

6.5%

Median Age

44.3

Community Profile

The community surrounding St Louis Priory School has a median household income of $122,917. It is a well-educated community where 69% of adults hold a bachelor's degree or higher. The median home value in the area is $571,900, with a median rent of $1,456/month. The local poverty rate of 6.5% is relatively low. Residents enjoy a short average commute of 19 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
PUTNAM CO. HIGH Unionville, MO 8.3
SEYMOUR HIGH Seymour, MO 8.2
BERNIE HIGH Bernie, MO 8.1
SCHUYLER CO. HIGH Queen City, MO 8.1
WEST PLATTE HIGH Weston, MO 8.1
COLLEGIATE SCHOOL OF MED/BIO St. Louis, MO 8.8

Frequently Asked Questions

Common questions about St Louis Priory School

What grades does St Louis Priory School serve?

St Louis Priory School serves students in grades 7th through 12th.

How many students attend St Louis Priory School?

St Louis Priory School has an enrollment of approximately 307 students.

What is the student-teacher ratio at St Louis Priory School?

The student-teacher ratio at St Louis Priory 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 Louis Priory School rank in MO?

St Louis Priory School is ranked #17 out of 399 private schools in MO.

What is St Louis Priory School's MySchoolScout rating?

St Louis Priory School has a composite rating of 8.4 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 Louis Priory School a private school?

Yes, St Louis Priory 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 Louis Priory School a religious school?

St Louis Priory School has a Roman Catholic religious affiliation.

11 schools nearby View map →

Neighborhood Context

Walk Score
2 Car-Dependent
Transit Score
0 Minimal Transit
Bike Score
17 Somewhat Bikeable
City Safety
High (7,108/100K)

Powered by Walk Score

FBI UCR 2024. City-level (St. Louis). Data >1 year old.

Quick Facts NCES PSS (SY 2021-22)

Grades
7th – 12th
Enrollment
307
Gender Split
100% M / 0% F
Student-Teacher Ratio
6.5:1
Teachers (FTE)
47
Type
private
Coed Status
all-boys
Affiliation
Roman Catholic
School Day
8.5 hours
Days Per Year
149 days
Setting
Large Suburb
County
ST. LOUIS
Data Year
2022–2023

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 methodology

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