In serving as the premier center for education and ministry within the Catholic Diocese of Wilmington, Saint Mark's is dedicated to ensuring a pathway to Catholic education for all who seek one. Due to the generous support from our constituency and alumni base, annual giving has doubled over the past three years, which helps support our tuition assistance programs. In keeping our commitment to make a premier Catholic education affordable to all, 70% of our current students receive some form of scholarship or aid. Click here to explore our scholarships, grants and financial aid.

2023-2024 TUITION:
  • 9th - 11th Grade - $16,033
  • 12th Grade - $15,768
  • International Students - $18,500

2023-2024 TUITION: $16,033 (Grade 9-11) | $15,758 (Grade 12)
Beginning with our Class of 2025, we transitioned from family-purchased iPads to school-issued laptops. A $250 technology fee, which covers the devices, software, insurance and all other related expenses has been included into the tuition for Grade 9-11.

EMMAUS is a fee-based optional program for students with documented learning differences. If you have specific questions about our EMMAUS program, please feel free to contact Mrs. Diane Kuczmarski, Director of EMMAUS, at 302-757-8738 or via email at

Transportation routes are subject to change and arranged each year based upon student interest. Click here to view transportation options for the 2022-2023 school year.