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Average

#390 of 713 private schools in OH

St Mary School

Elementary School

66 E WILLIAM ST, Delaware, OH 43015

Private Estimated Score

Estimated academic score. This school does not have standardized test data. Based on 11 schools in Delaware. Learn more

Enrollment

314

Student-Teacher

11.7:1

Score

6.5

Grades

Pre-K – 8th

Updated 2021-22

How this school compares

Ohio elementary schools

#225 of 409

Academic performance

7.5 / 10

Strong

About St Mary School

ST MARY SCHOOL serves 314 students from prekindergarten through eighth grade in Delaware, Ohio. This regular public elementary school maintains a favorable student-teacher ratio of 11.7:1 with 27 full-time equivalent teachers, creating opportunities for more individualized attention in the classroom. The school has earned recognition for its academic performance, receiving an 8.0 out of 10 rating from MySchoolScout and ranking #51 out of 713 schools statewide, placing it in the 93rd percentile among Ohio elementary schools.

This strong ranking reflects the school's commitment to educational excellence and student achievement. ST MARY SCHOOL draws families from a well-established community where nearly half of residents hold bachelor's degrees or higher, and the median household income reaches $92,895. The neighborhood's low poverty rate of 7.4% and median home values of $279,900 reflect the area's economic stability.

Located at 66 East William Street, the school sits within Delaware's large suburban setting, providing students with access to both educational resources and community amenities. The combination of strong academic performance, manageable class sizes, and an engaged community makes ST MARY SCHOOL an attractive option for families seeking quality elementary education in central Ohio's growing Delaware area.

What Parents Should Know

As a private school, St Mary 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 Mary School compares to 10 public schools serving similar grades in Delaware, OH

Student-Teacher Ratio
11.7:1
This School
vs
17.9:1
Public Avg
Avg School Size
314
This School
vs
574
Public Avg
Avg School Scout Rating
6.5
This School
vs
5.9
Public Avg

Student Demographics

White 91.4% vs 0%
Hispanic 3.8% vs 0%
Asian 1.9% vs 0%
Black 1.3% vs 0%
St Mary School Delaware Public Avg

Nearby Elementary Schools

School Rating
St Mary School (this school) 6.5
Laura Woodward Elementary School 5.8
James Conger Elementary School 5.0
David Smith Elementary School 5.1
John C Dempsey Middle School 6.0
Robert F Schultz Elementary School 5.1
Ervin Carlisle Elementary School 4.0
Buckeye Valley Local Middle School 6.3
Cheshire Elementary 7.2
Delaware Area Career Center South Campus 8.2
Olentangy Preschool at DACC

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 OH.

Classroom Attention
? Student-teacher ratio calibrated against other private schools. Lower ratios mean more individual attention. (30% of overall score)
B+ 6.9 / 10
View breakdown
Student-Teacher Ratio 11.7:1
Instructional Commitment
? Total annual instructional hours based on school day length and days per year. (15% of overall score)
B- 4.7 / 10
View breakdown
School Day Length 6.3 hours
Annual Instructional Hours 1,102.5
Diversity & Inclusion
? Racial and ethnic diversity of the student body using Simpson's diversity index. (20% of overall score)
B 5.8 / 10
View breakdown
Diversity Index 16%
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 314
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 OH

Test Scores

Test score data not yet available for this school.

Student Demographics NCES PSS (SY 2021-22)

White 91.4%
Hispanic 3.8%
Asian 1.9%
Two or More 1.6%
Black 1.3%

Source: NCES Private School Survey (PSS)

Location

66 E WILLIAM ST, Delaware, OH 43015

Nearby Alternatives

Families considering St Mary School may also want to explore other elementary schools in the area. Liberty Tree Elementary School (rated 7.8/10, 6.6 miles away, in nearby Powell), which scores notably higher. Another option is Cheshire Elementary (rated 7.2/10, 4.6 miles away), which scores slightly higher. Additionally, Heritage Elementary School (rated 6.9/10, 6.6 miles away, in nearby Lewis Center), which scores slightly higher. For more schools in Delaware, see our Delaware schools guide .

Nearby Schools

20 within 5.7 mi
School Distance Rating
Laura Woodward Elementary School Delaware 0.5 mi 5.8
James Conger Elementary School Delaware 0.6 mi 5.0
David Smith Elementary School Delaware 0.9 mi 5.1
Rutherford B Hayes High School Delaware 1.2 mi 5.1
John C Dempsey Middle School Delaware 1.6 mi 6.0
Ervin Carlisle Elementary School Delaware 1.6 mi 4.0
Robert F Schultz Elementary School Delaware 1.6 mi 5.1
Buckeye Valley Local Middle School Delaware 3.6 mi 6.3
Buckeye Valley Local High School Delaware 3.8 mi 6.7
Olentangy Preschool at DACC Delaware 4.8 mi
Delaware Area Career Center South Campus Delaware 4.8 mi 8.2
Olentangy Berlin High School Delaware 4.4 mi 7.7
Cheshire Elementary Delaware 4.6 mi 7.2
Shale Meadows Elementary School Lewis Center 5.7 mi 6.5
Olentangy Shanahan Preschool Lewis Center 6.3 mi 6.9
Olentangy Shanahan Middle School Lewis Center 6.4 mi 7.5
Liberty Tree Elementary School Powell 6.6 mi 7.8
Hyatts Middle School Powell 6.7 mi 8.8
Heritage Elementary School Lewis Center 6.6 mi 6.9
Buckeye Valley West Elementary School Ostrander 5.7 mi 6.0

Neighborhood Census ACS (2019-2023)

Census data for ZIP 43015 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$99,622

Median Home Value

$311,900

Median Rent

$1,207/mo

Population

59,027

College Educated

46.7%

Homeownership

69.7%

Avg Commute

26.7 min

Poverty Rate

8.3%

Median Age

38.6

Community Profile

The community surrounding St Mary School has a median household income of $99,622. It is a well-educated community where 47% of adults hold a bachelor's degree or higher. The median home value in the area is $311,900, with a median rent of $1,207/month. The local poverty rate of 8.3% is relatively low. The average commute for residents is 27 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
ALL SAINTS ACADEMY Columbus, OH 6.5
Alfred Benesch Cleveland, OH 6.5
Brook Intermediate School Byesville, OH 6.5
Coy Elementary School Oregon, OH 6.5
Fairfax Elementary School Mentor, OH 6.5
Hillsboro Primary School Hillsboro, OH 6.5

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 314 students.

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

The student-teacher ratio at St Mary School is 11.7:1. 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 OH?

St Mary School is ranked #390 out of 713 private schools in OH.

What is St Mary School's MySchoolScout rating?

St Mary School has a composite rating of 6.5 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 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.

11 schools nearby View map →

Neighborhood Context

City Safety
Elevated (1,147/100K)

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

Quick Facts NCES PSS (SY 2021-22)

Grades
Pre-K – 8th
Enrollment
314
Gender Split
47% M / 53% F
Student-Teacher Ratio
11.7:1
Teachers (FTE)
27
Type
private
Coed Status
coed
Affiliation
Roman Catholic
School Day
6.3 hours
Days Per Year
175 days
Setting
Large Suburb
County
DELAWARE
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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