Average
#49 of 59 private schools in DE
St Mark's High School
High School
2501 PIKE CREEK RD, Wilmington, DE 19808
Enrollment
716
Student-Teacher
13.8:1
Score
5.2
Grades
9th – 12th
Enrollment
716
Student-Teacher
13.8:1
Score
5.2
Grades
9th – 12th
Data vintage
2021-22
Data vintage2021-22
How this school compares
Delaware private schools
#49 of 59
In Wilmington
#20 of 21
public schools
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St Mark's High School
High School in Wilmington · grades 9th – 12th. Start here, then compare fit against nearby and district options.
Heritage Elementary School
0.3 mi away. Use as a geographic alternative in the same move search.
Skyline Middle School
0.4 mi away. Use as a geographic alternative in the same move search.
About St Mark's High School
St Mark's High School is a private high school in Wilmington, DE. St Mark's High School serves approximately 716 students, and covers grades 9th-12th, and has a 13.8:1 student-teacher ratio. St Mark's High School has a current MySchoolScout rating of 5.2 out of 10 and ranks #49 of 59 private schools in DE.
- This school 5.2 · Average
- DE avg 5.9
What Parents Should Know
St Mark's High 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
BetaHow St Mark's High School compares to 18 public schools serving similar grades in Wilmington, DE
Student Demographics
Nearby High Schools
| School | Rating |
|---|---|
| St Mark's High School (this school) | 5.2 |
| Dickinson (John) School | 6.1 |
| McKean (Thomas) High School | 3.8 |
| Delcastle Technical High School | 6.3 |
| Conrad Schools of Science | 8.2 |
| Delaware Military Academy | 6.2 |
| Odyssey Charter School | 6.8 |
| Charter School of Wilmington | 8.0 |
| Calloway (Cab) School of the Arts | 7.8 |
| Douglass School | 6.6 |
| duPont (Alexis I.) High School | 4.1 |
| First State School | — |
| The Bancroft School | 4.9 |
| Freire Charter School | 3.5 |
| Great Oaks Charter School | 4.4 |
| Howard High School of Technology | 4.9 |
| Mount Pleasant High School | 7.1 |
| Brandywine High School | 7.1 |
| Concord High School | 7.5 |
Demographics sourced from NCES Private School Survey (PSS) and Common Core of Data (CCD). Comparisons are based on enrollment-weighted averages.
Score Breakdown
PreliminaryWhat 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 DE.
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 DE
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
2501 PIKE CREEK RD, Wilmington, DE 19808
Nearby Alternatives
Families considering St Mark's High School may also want to explore other high schools in the area. Wilson (Etta J.) Elementary School (rated 9.5/10, 1.1 miles away, in nearby Newark), which scores notably higher. Another option is ISLAMIC ACADEMY OF DELAWARE (rated 9.2/10, 3.0 miles away, in nearby Newark), which scores notably higher. Additionally, Linden Hill Elementary School (rated 8.6/10, 1.1 miles away), which scores notably higher. For more schools in Wilmington, see our Wilmington schools guide .
Nearby Schools
20 within 3.0 mi| School | Distance | Rating |
|---|---|---|
| Heritage Elementary School Wilmington | 0.3 mi | 8.3 |
| Skyline Middle School Wilmington | 0.4 mi | 4.0 |
| DESTINY CALLING ACADEMY Wilmington | 0.7 mi | — |
| Forest Oak Elementary School Newark | 0.9 mi | 8.1 |
| Meadowood Program Newark | 1.0 mi | 4.2 |
| Dickinson (John) School Wilmington | 1.0 mi | 6.1 |
| Linden Hill Elementary School Wilmington | 1.1 mi | 8.6 |
| Wilson (Etta J.) Elementary School Newark | 1.1 mi | 9.5 |
| DEVELOPING MINDS PRESCHOOL AND LEARNING CENTER Wilmington | 1.4 mi | — |
| TOWLE INSTITUTE Newark | 1.5 mi | 4.4 |
| Shue-Medill Middle School Newark | 1.7 mi | 7.7 |
| ST JOHN THE BELOVED SCHOOL Wilmington | 1.9 mi | 5.8 |
| Las Americas ASPIRA Academy Newark | 2.3 mi | 3.8 |
| LIMESTONE HILLS DAY SCHOOL Wilmington | 2.3 mi | — |
| Red Clay Early Years Program Wilmington | 1.9 mi | 5.7 |
| Stanton Middle School Wilmington | 2.0 mi | 5.7 |
| THE INDEPENDENCE SCHOOL Newark | 2.3 mi | 6.7 |
| Gallaher (Robert S.) Elementary School Newark | 2.6 mi | 6.4 |
| Brandywine Springs School Wilmington | 2.5 mi | 5.5 |
| ISLAMIC ACADEMY OF DELAWARE Newark | 3.0 mi | 9.2 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 19808 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$92,883
Median Home Value
$309,700
Median Rent
$1,357/mo
Population
38,334
College Educated
41.1%
Homeownership
79.1%
Avg Commute
24.2 min
Poverty Rate
5.6%
Median Age
43.6
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Woodbridge High School Greenwood, DE | 5.2 |
| Early College School at Del State Dover, DE | 5.1 |
| Howard High School of Technology Wilmington, DE | 4.9 |
| Delmar High School Delmar, DE | 5.6 |
| Lake Forest High School Felton, DE | 4.7 |
| Delaware Military Academy Wilmington, DE | 6.2 |
Frequently Asked Questions
Common questions about St Mark's High School
What grades does St Mark's High School serve?
St Mark's High School serves students in grades 9th through 12th.
How many students attend St Mark's High School?
St Mark's High School has an enrollment of approximately 716 students.
What is the student-teacher ratio at St Mark's High School?
The student-teacher ratio at St Mark's High School is 13.8:1. A lower ratio generally means more individual attention per student. The national average is approximately 11:1 for private schools.
How does St Mark's High School rank in DE?
St Mark's High School ranks #49 of 59 private schools in DE.
What is St Mark's High School's MySchoolScout rating?
St Mark's High School has a current MySchoolScout rating of 5.2 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
Is St Mark's High School a private school?
Yes, St Mark's High 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 Mark's High School a religious school?
St Mark's High School has a Roman Catholic religious affiliation.
Neighborhood Context
Powered by 
Quick Facts NCES PSS (SY 2021-22)
- Grades
- 9th – 12th
- Enrollment
- 716
- Gender Split
- 46% M / 54% F
- Student-Teacher Ratio
- 13.8:1
- Teachers (FTE)
- 52
- Type
- private
- Coed Status
- coed
- Affiliation
- Roman Catholic
- School Day
- 6.7 hours
- Days Per Year
- 180 days
- Setting
- Large Suburb
- County
- New Castle County
- Phone
- (302) 757-8704
Resources & Links
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