St. Mark's High School Tuition 2026
Annual tuition: $16,000/year — 30% above national avg . Located in Wilmington, Delaware.
How St. Mark's High School Compares
St. Mark's High School tuition is 25% above Delaware avg.
Tuition by Grade Level
K–12 Total Cost Projection
At $16,000/year with 4% annual tuition increases, sending one child through K–12 at St. Mark's High School would cost approximately:
Estimate assumes 13 years (K–12) at 4% annual increase. Actual costs vary — contact the school for current rates. Use our calculator for your state's average →
School Information
- Location
- Wilmington, DE
- Affiliation
- Catholic
- Grades Offered
- 9–12
- Enrollment
- 800 students
- School Type
- Catholic
- Data Source
- NCES PSS 2021–22
Similar Private Schools in Delaware
More Delaware Private School Data
Frequently Asked Questions
How much does St. Mark's High School tuition cost?
St. Mark's High School charges $16,000/year in 2026 — 30% above the national average of $12,350/year national average. Located in Wilmington, Delaware. Source: NCES Private School Universe Survey.
What is the total cost of attending St. Mark's High School from K–12?
At the current tuition of $16,000/year with 4% annual increases, the projected K–12 total for St. Mark's High School is approximately $266,030. This estimate assumes tuition increases at the historical 3–5% annual rate for private schools.
How does St. Mark's High School tuition compare to other Delaware private schools?
St. Mark's High School's tuition of $16,000/year is $3,200 above the Delaware private school average of $12,800/year. This puts it near the middle of the Delaware private school cost range.
Does St. Mark's High School offer financial aid?
Most private schools, including Catholic schools, offer need-based financial aid. Nationally, about 27% of private school students receive aid averaging 48% of tuition. Contact St. Mark's High School's admissions office directly for current aid availability and application requirements.
Tuition data sourced from the NCES Private School Universe Survey 2021–22. Figures represent reported or estimated annual tuition. Actual costs may vary — contact the school directly for current tuition, fees, and financial aid information. Data last updated March 2026.