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#403 of 534 private schools in NJ

St Mary School

Elementary School · Williamstown, NJ

A private elementary school in Williamstown, NJ serving grades Pre-K – 8th.

Private

32A CARROLL AVE, Williamstown, NJ 08094

  • 14.4:1 student-teacher ratio

Academics

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 NJ.

Classroom Attention
?Student-teacher ratio calibrated against other private schools. Lower ratios mean more individual attention. (30% of overall score)
C3.4 / 10
View breakdown
Student-Teacher Ratio14.4:1
Instructional Commitment
?Total annual instructional hours based on school day length and days per year. (15% of overall score)
B+6.5 / 10
View breakdown
School Day Length6.8 hours
Annual Instructional Hours1,224
Diversity & Inclusion
?Racial and ethnic diversity of the student body using Simpson's diversity index. (20% of overall score)
B5.7 / 10
View breakdown
Diversity Index33%
Community Context

Data not available

School Profile
?Enrollment size and grade span breadth — indicators of program depth and peer community. (15% of overall score)
A-8.2 / 10
View breakdown
Enrollment368
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 NJ

Test scores

Most recent published year. School vs. NJ average.

Test score data not yet available for this school.

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

The neighborhood

Where St Mary School sits, and what the surrounding area looks like.

Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries. Open the Philadelphia map →

Getting around & local context

  • Walk 66Somewhat Walkable
  • Bike 55Bikeable
  • County Safety: Low1/100K

Powered byWalk Score

FBI Uniform Crime Reporting · 2024 · county context, not school-level safety or attendance eligibility. Source details

Source period: 2024. A newer release may be available.

Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)

Median income

$92,125

Median home value

$260,200

Median rent

$1,420/mo

College educated

27.5%

Homeownership

82.6%

Poverty rate

7%

ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 08094; this is area context, not an attendance boundary.

Programs & students

Student demographicsNCES Private School Universe Survey (PSS) (SY 2021–22)

White81.5%
Hispanic8.2%
Two or More4.1%
Black3.3%
Asian3.0%

Source: NCES Private School Universe Survey (PSS)

Compare nearby

Nearby same-level schools

3 from a 5-mile search

SchoolScoreGradesDistanceEnrollmentCompare
Oak Knoll Elementary SchoolEnrollment path unverified5.0PK–40.5 mi637Compare →
Radix ElementaryEnrollment path unverified6.4PK–40.9 mi604Compare →
Holly Glen Elementary SchoolEnrollment path unverified6.9PK–41.4 mi515Compare →

Distance is proximity only; it is not attendance eligibility.

Enrollment path unverified: Potential public school; its attendance or application path has not been classified.

St Mary School is listed in Williamstown, NJ; verify the current enrollment path directly.

About St Mary School

St Mary School is a private elementary school in Williamstown, NJ, serving approximately 368 students in grades Pre-K-8th with a 14.4:1 student-teacher ratio. It holds a MySchoolScout rating of 5.5 out of 10 and ranks #403 of 534 private schools in NJ.

Frequently asked questions

Common questions about St Mary School

What grades does St Mary School serve?

St Mary School serves students in grades Pre-K through 8th.

How many students attend St Mary School?

St Mary School has an enrollment of approximately 368 students.

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

The student-teacher ratio at St Mary School is 14.4:1. A lower ratio generally means more individual attention per student. The national average is approximately 11:1 for private schools.

How does St Mary School rank in NJ?

St Mary School ranks #403 of 534 private schools in NJ.

What is St Mary School's MySchoolScout rating?

St Mary School has a current MySchoolScout rating of 5.5 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 School a private school?

Yes, St Mary 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 School a religious school?

St Mary School has a Roman Catholic religious affiliation.

School factsNCES Private School Universe Survey (PSS) (SY 2021–22)

Grades
Pre-K – 8th
Enrollment
368
Gender Split
52% M / 48% F
Student-Teacher Ratio
14.4:1
Teachers (FTE)
26
Type
private
Coed Status
coed
Affiliation
Roman Catholic
School Day
6.8 hours
Days Per Year
180 days
Setting
Large Suburb
County
Gloucester County
Area population (ZIP 08094)
40,542
Area average commute
34 min
Area median age
39.7
About this school's data

Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.

School directory (enrollment, grades, staff, contact)
NCES Private School Universe Survey (PSS) · SY 2021–22 · Low confidence
  • Vintage not available. Do not use this measure alone.
MySchoolScout rating and rank
MySchoolScout ranking model · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Available for part of the eligible units; results may not represent the full area.
  • Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
Neighborhood (income, housing, education)
U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
  • Older source: ACS 2019–2023 5-year estimates. Use as historical context.
  • Reported for the ZCTA for ZIP 08094; this does not measure the attendance area.

Evidence periods: Rating mixed/unknown input periods; assessments vintage unavailable; directory SY 2021–22

About our data · How we calculate scores

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