Skip to main content

Limited Profile

Not enough data to generate a rating

Principia School

School

13201 CLAYTON RD, St. Louis, MO 63131

Private

Enrollment

15

Student-Teacher

0.5:1

Grades

Pre-K – 12th

Data vintage2021-22

School shortlistprofile + nearby

Shortlisting around Principia School?

Use this profile as one decision point, then compare nearby options, source confidence, and commute fit before picking a neighborhood around it.

Shortlist starter

Start with these real page-level signals, then use the full table and map below.

Principia School

Limited profile

School in St. Louis · grades Pre-K – 12th. Start here, then compare fit against nearby and district options.

Mason Ridge Elem.

7.9/10

0.5 mi away. Use as a geographic alternative in the same move search.

St Louis Priory School

8.4/10

0.9 mi away. Use as a geographic alternative in the same move search.

About Principia School

Principia School is a private school in St. Louis, MO. Principia School serves approximately 15 students, and covers grades Pre-K-12th, and has a 0.5:1 student-teacher ratio.

MySchoolScout does not publish a rating for this profile because there is not enough verified data to rate it fairly. Based on limited data: 0% component coverage.

What Parents Should Know

At 15 students, Principia School is on the smaller side. That usually buys more individual attention and teachers who know every kid by name, with the trade-off of fewer electives and extracurriculars than a larger school can staff. Ask what activities it actually offers.

At 0.5:1 students to teachers, Principia School sits well below the national average. Smaller classes like that usually mean more one-on-one time between students and teachers.

Principia 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

Beta

How Principia School compares to 203 public schools serving similar grades in St. Louis, MO

Student-Teacher Ratio
0.5:1
This School
vs
14.3:1
Public Avg
Avg School Size
15
This School
vs
394
Public Avg

Student Demographics

White 100% vs 0%
Principia School St. Louis Public Avg

Nearby Other Schools

School Rating
Principia School (this school)
LADUE FIFTH GRADE CENTER 9.0
LADUE EARLY CHILDHOOD CENTER 3.0
ROSS ELEM. 7.7
SPOEDE ELEMENTARY 8.3
CRAIG ELEM. 5.1
NORTH HIGH 7.1
LADUE HORTON WATKINS HIGH 7.8
MCKELVEY PRIMARY 6.5
CONWAY ELEMENTARY 8.2
LADUE MIDDLE 7.7
OLD BONHOMME ELEMENTARY 8.1
HUDSON ELEM. 8.1
REED ELEMENTARY 9.0
DR. HENRY GIVENS JR. ELEM. 5.3
IVELAND ELEM. 4.5
WALTER AMBROSE FAMILY CENTER 2.9
BRISTOL ELEM. 8.5
CRESTWOOD ELEM. 5.2
CLARK ELEM. 8.4
EARLY CHILDHOOD ED CENTER WEST 2.8

Showing 20 of 203 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.

School Profile

Limited Data
Grades
Pre-K – 12th
Enrollment
15 students
Type
Private · Other Religious
Student-Teacher Ratio
0.5:1
Address
13201 CLAYTON RD, St. Louis, MO 63131
Phone
(314) 434-2100
Data Year
SY 2021-22
Why doesn't this school have a score?

We don't have enough verified data to rate this school fairly. Private schools in MO aren't required to report standardized test scores to the state, which limits the data available for our rating model.

Our rating model requires at least 2 of 4 data components (academics, student progress, college readiness, and resources) to generate a meaningful score. Schools below this threshold receive a Limited Profile to avoid misleading ratings.

Learn more about our methodology →

Test Scores

Test score data not yet available for this school.

Student Demographics NCES PSS (SY 2021-22)

White 100.0%

Source: NCES Private School Survey (PSS)

Location

13201 CLAYTON RD, St. Louis, MO 63131

Nearby Alternatives

Families considering Principia School may also want to explore other schools in the area. AL-SALAM DAY SCHOOL (rated 9.3/10, 2.3 miles away, in nearby Manchester). Another option is PROMISE CHRISTIAN ACADEMY (rated 7.0/10, 1.0 miles away, in nearby Town And Country). Additionally, VISITATION ACADEMY (rated 6.8/10, 1.9 miles away). For more schools in St. Louis, see our St. Louis schools guide .

Nearby Schools

20 within 2.3 mi
School Distance Rating
MASON RIDGE ELEM. Town & Country 0.5 mi 7.9
ST LOUIS PRIORY SCHOOL St. Louis 0.9 mi 8.4
ROSSMAN SCHOOL St. Louis 1.1 mi 7.7
PROMISE CHRISTIAN ACADEMY Town And Country 1.0 mi 7.0
SAUL MIROWITZ JEWISH COMMUNITY SCHOOL St. Louis 1.3 mi 8.2
THE MOOG CENTER FOR DEAF EDUCATION St. Louis 1.2 mi
WHITFIELD SCHOOL St. Louis 1.6 mi 7.1
COUNTRYSIDE MONTESSORI SCHOOL St. Louis 1.9 mi
ST AUSTIN SCHOOL Chesterfield 1.8 mi 6.8
WESTMINSTER CHRISTIAN ACADEMY Town And Country 1.6 mi 6.1
COVENANT CHRISTIAN SCHOOL Town And Country 1.7 mi 4.1
HIRAM NEUWOEHNER Town And Country 1.8 mi 3.6
EXTERNAL SITES Town And Country 1.8 mi 4.2
VISITATION ACADEMY St. Louis 1.9 mi 6.8
NORTHEAST MIDDLE Creve Coeur 2.2 mi 7.8
AL-SALAM DAY SCHOOL Manchester 2.3 mi 9.3
PIERREMONT ELEM. Manchester 2.4 mi 7.5
CHRIST PRINCE OF PEACE SCHOOL Manchester 2.5 mi 6.6
BELLERIVE ELEM. Creve Coeur 2.7 mi 8.5
SOUTH MIDDLE Manchester 2.3 mi 7.8

Neighborhood Census ACS (2019-2023)

Census data for ZIP 63131 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$209,306

Median Home Value

$734,300

Median Rent

$1,999/mo

Population

17,993

College Educated

83.3%

Homeownership

92.8%

Avg Commute

21.2 min

Poverty Rate

2.1%

Median Age

46.2

Similar Schools

Schools in the same state with comparable level, size, and ratings

School Rating
ANCHOR ACADEMY Vanduser, MO
BRIARWOOD SCHOOL Harrisonville, MO
Boonslick St. Peters, MO
CEDAR RIDGE SCHOOL Nevada, MO
COLLEGE VIEW SCHOOL Joplin, MO
CROWLEY RIDGE SCHOOL Dexter, MO

Frequently Asked Questions

Common questions about Principia School

What grades does Principia School serve?

Principia School serves students in grades Pre-K through 12th.

How many students attend Principia School?

Principia School has an enrollment of approximately 15 students.

What is the student-teacher ratio at Principia School?

The student-teacher ratio at Principia School is 0.5:1. A lower ratio generally means more individual attention per student. The national average is approximately 11:1 for private schools.

Is Principia School a private school?

Yes, Principia School is a private coeducational school with a Other Religious affiliation. Private schools are not required to participate in state standardized testing, so academic performance data may be limited compared to public schools.

Is Principia School a religious school?

Principia School has a Other Religious religious affiliation.

11 schools nearby View map →

Quick Facts NCES PSS (SY 2021-22)

Grades
Pre-K – 12th
Enrollment
15
Gender Split
7% M / 93% F
Student-Teacher Ratio
0.5:1
Teachers (FTE)
29
Type
private
Coed Status
coed
Affiliation
Other Religious
School Day
6 hours
Days Per Year
170 days
Setting
Large Suburb
County
St. Louis County

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

Related reading

Get school insights in your inbox

New rankings, best-schools lists, and parent guides — delivered free. No spam, unsubscribe anytime.

We respect your privacy. Unsubscribe at any time.