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Very Good

#179 of 992 private schools in NY

Top 18% of private schools

St Mary's School

Elementary School

12 6TH ST, Waterford, NY 12188

Private

Enrollment

157

Student-Teacher

5.6:1

Score

7.3

Grades

Pre-K – 7th

Data vintage2021-22

How this school compares

New York private schools

#179 of 992

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St Mary's School

7.3/10

Elementary School in Waterford · grades Pre-K – 7th. Start here, then compare fit against nearby and district options.

Turnpike Elementary School

3.7/10

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

Catholic Central High School

6.4/10

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

About St Mary's School

St Mary's School is a private elementary school in Waterford, NY. St Mary's School serves approximately 157 students, and covers grades Pre-K-7th, and has a 5.6:1 student-teacher ratio. St Mary's School has a current MySchoolScout rating of 7.3 out of 10 and ranks #179 of 992 private schools in NY.

How it compares1.4 pts above NY schools
  • This school 7.3 · Very Good
  • NY avg 5.9

What Parents Should Know

At 157 students, St Mary's 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 5.6:1 students to teachers, St Mary's School sits well below the national average. Smaller classes like that usually mean more one-on-one time between students and teachers.

St Mary's 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 St Mary's School compares to the 2 public schools in Waterford, NY

Student-Teacher Ratio
5.6:1
This School
vs
9.4:1
Public Avg
Avg School Size
157
This School
vs
366
Public Avg
Avg School Scout Rating
7.3
This School
vs
6.9
Public Avg

Student Demographics

White 91.1% vs 0%
Hispanic 3.2% vs 0%
Asian 3.2% vs 0%
Black 2.5% vs 0%
St Mary's School Waterford Public Avg

All Schools in Waterford

School Rating
St Mary's School (this school) 7.3
WATERFORD-HALFMOON ELEMENTARY SCHOOL 7.0
WATERFORD-HALFMOON JUNIOR-SENIOR HIGH SCHOOL 6.8

Demographics sourced from NCES Private School Survey (PSS) and Common Core of Data (CCD). Comparisons are based on enrollment-weighted averages.

Score Breakdown

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 NY.

Classroom Attention
? Student-teacher ratio calibrated against other private schools. Lower ratios mean more individual attention. (30% of overall score)
A 8.7 / 10
View breakdown
Student-Teacher Ratio 5.6:1
Instructional Commitment
? Total annual instructional hours based on school day length and days per year. (15% of overall score)
B+ 6.6 / 10
View breakdown
School Day Length 6.8 hours
Annual Instructional Hours 1,224
Diversity & Inclusion
? Racial and ethnic diversity of the student body using Simpson's diversity index. (20% of overall score)
B- 5.3 / 10
View breakdown
Diversity Index 17%
Community Context

Data Unavailable

School Profile
? Enrollment size and grade span breadth — indicators of program depth and peer community. (15% of overall score)
A- 8.1 / 10
View breakdown
Enrollment 157
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 NY

Test Scores

Test score data not yet available for this school.

Student Demographics NCES PSS (SY 2021-22)

White 91.1%
Hispanic 3.2%
Asian 3.2%
Black 2.5%

Source: NCES Private School Survey (PSS)

Location

12 6TH ST, Waterford, NY 12188

Nearby Alternatives

Families considering St Mary's School may also want to explore other elementary schools in the area. PS 14 (rated 7.1/10, 4.6 miles away, in nearby Troy), with a very similar rating. Another option is WATERFORD-HALFMOON ELEMENTARY SCHOOL (rated 7.0/10, 1.5 miles away), with a very similar rating. Additionally, VAN SCHAICK ISLAND SCHOOL (rated 5.8/10, 1.7 miles away, in nearby Cohoes), a more accessible option. For more schools in Waterford, see our Waterford schools guide .

Nearby Schools

20 within 4.6 mi
School Distance Rating
TURNPIKE ELEMENTARY SCHOOL Troy 0.7 mi 3.7
CATHOLIC CENTRAL HIGH SCHOOL Troy 1.2 mi 6.4
WATERFORD-HALFMOON ELEMENTARY SCHOOL Waterford 1.5 mi 7.0
WATERFORD-HALFMOON JUNIOR-SENIOR HIGH SCHOOL Waterford 1.5 mi 6.8
VAN SCHAICK ISLAND SCHOOL Cohoes 1.7 mi 5.8
RENSSELAER PARK ELEMENTARY SCHOOL Troy 1.8 mi 3.7
LANSINGBURGH SENIOR HIGH SCHOOL Troy 2.0 mi 7.4
KNICKERBACKER MIDDLE SCHOOL Troy 2.0 mi 3.5
ABRAM LANSING SCHOOL Cohoes 2.2 mi 4.8
COHOES MIDDLE SCHOOL Cohoes 2.1 mi 5.4
COHOES HIGH SCHOOL Cohoes 2.3 mi 6.9
HARMONY HILL SCHOOL Cohoes 2.3 mi 4.2
HEATLY SCHOOL Green Island 3.2 mi 5.2
PS 2 Troy 3.3 mi 5.7
ST COLMAN'S SCHOOL Watervliet 3.5 mi 4.7
PS 18 Troy 3.9 mi 5.6
WATERVLIET ELEMENTARY SCHOOL Watervliet 4.1 mi 4.0
TROY MIDDLE SCHOOL Troy 4.4 mi 6.1
TROY HIGH SCHOOL Troy 4.5 mi 7.5
PS 14 Troy 4.6 mi 7.1

Neighborhood Census ACS (2019-2023)

Census data for ZIP 12188 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$87,212

Median Home Value

$278,100

Median Rent

$1,097/mo

Population

11,414

College Educated

32.1%

Homeownership

72.4%

Avg Commute

23.6 min

Poverty Rate

5.5%

Median Age

44.5

Similar Schools

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

School Rating
AMAGANSETT SCHOOL Amagansett, NY 7.3
DUTCHESS DAY SCHOOL Millbrook, NY 7.3
GARRISON SCHOOL Garrison, NY 7.3
HEBREW ACADEMY OF NASSAU-PLAINVIEW CAMPUS Plainview, NY 7.3
JOHN PAULDING SCHOOL Tarrytown, NY 7.3
MANITOU SCHOOL Cold Spring, NY 7.3

Frequently Asked Questions

Common questions about St Mary's School

What grades does St Mary's School serve?

St Mary's School serves students in grades Pre-K through 7th.

How many students attend St Mary's School?

St Mary's School has an enrollment of approximately 157 students.

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

The student-teacher ratio at St Mary's School is 5.6:1. 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 School rank in NY?

St Mary's School ranks #179 of 992 private schools in NY.

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

St Mary's School has a current MySchoolScout rating of 7.3 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 School a private school?

Yes, St Mary's School is a private coeducational 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 School a religious school?

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

11 schools nearby View map →

Neighborhood Context

Walk Score
65 Somewhat Walkable
Bike Score
76 Very Bikeable

Powered by Walk Score

Quick Facts NCES PSS (SY 2021-22)

Grades
Pre-K – 7th
Enrollment
157
Gender Split
69% M / 31% F
Student-Teacher Ratio
5.6:1
Teachers (FTE)
28
Type
private
Coed Status
coed
Affiliation
Roman Catholic
School Day
6.8 hours
Days Per Year
180 days
Setting
Large Suburb
County
Saratoga County

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