Average
#390 of 713 private schools in OH
St Mary School
Elementary School
66 E WILLIAM ST, Delaware, OH 43015
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
Enrollment
314
Student-Teacher
11.7:1
Score
6.5
Grades
Pre-K – 8th
Updated
2021-22
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
BetaHow St Mary School compares to 10 public schools serving similar grades in Delaware, OH
Student Demographics
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.
Data Unavailable
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)
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 miNeighborhood 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.
Explore More Schools
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
- Phone
- (740) 362-8961
- Data Year
- 2022–2023
Resources & Links
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 methodologyRelated reading
- Best Schools in Akron, OH — 2026 Rankingsbest schools
- Best Schools in Columbus, OH — 2026 Rankingsbest schools
- Best States for Public Schools in 2026: A Complete Rankingdata insights
- Charter Schools vs Public Schools: What the Data Actually Shows (2026)school choice
- Moving for Schools: How to Find the Best Schools Before You Relocateguides
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.