Dickinson (John) School
Public · Grades 6–12 · 1,027 students
St. Mark's High School
2501 Pike Creek Rd, Wilmington, DE 19808
Grades
9–12
High
Students
829
Enrolled 2024–25
Students per teacher
16.6 : 1
Full-time teachers
District
Catholic School
New Castle County
About St. Mark's High School
St. Mark's High School is a high school in Wilmington, Delaware, serving grades 9–12. The school is located in a large suburb in New Castle County.
In the 2024–25 school year, 829 students were enrolled, with about 16.6 students for every full-time teacher. That ratio is larger than the typical Delaware high school (15.4 students per teacher). It is affiliated with the Roman Catholic tradition.
Grades
PKK123456789101112
Highlighted: grades offeredGrades 9–12
Location & nearby schools
School details
- Type
- Catholic School · What this means
- Religious affiliation
- Roman Catholic
- Level
- High
- Grades offered
- 9–12
- Enrollment (2024–25)
- 829 students
- Students per teacher
- 16.6 to 1
- Locale
- Suburb — Large
- County
- New Castle County
- NCES private school ID
- 00249577
Schools near St. Mark's High School
All 81 schools in Wilmington →
McKean (Thomas) High School
Public · Grades 9–12 · 920 students
Delcastle Technical High School
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Christiana High School
Public · Grades 6–12 · 1,425 students
Newark High School
Magnet · Grades 9–12 · 1,039 students
Conrad Schools of Science
Magnet · Grades 6–12 · 1,164 students
School data comes from the U.S. Department of Education: the National Center for Education Statistics (NCES) Common Core of Data and EDGE school locations (2024–25) and Private School Survey (2023–24), the Civil Rights Data Collection (2023–24), and EDFacts (test results 2021–22; graduation and chronic absenteeism 2022–23), plus other public sources. Please contact the school to confirm enrollment, programs, and other details. How we source data.