St. Mark's High School

5.00 5 1 (3 reviews)
Tel: (302)738-3300
  • Saint Mark's is a Diocesan, Catholic college preparatory high school that educates young men and women to be leaders whose faith and service reflect the values of excellence, humility, and integrity.
  • Our students learn Christ's commandment to love one another and they experience firsthand the joys of giving service to the community.
  • Saint Mark's students acquire a sense of justice and learn to live responsibly in the world.
  • Our broad curriculum and extensive opportunities for involvement allow each student to develop to his or her fullest potential.
  • In academics, athletics, the arts – in all aspects of their lives – Saint Mark's students are motivated to succeed.
  • We invite you to come to Saint Mark's and experience our very special feeling of belonging.

School Overview

School Membership(s)School Assoc.National Catholic Educational Association (NCEA)
National Association of Independent Schools (NAIS)
Middle States Association of Colleges and Secondary Schools
Delaware Association of Independent Schools
Religious AffiliationRoman Catholic
Grades OfferedGrades 9-12
Learning Difference ProgramsYes
Learning Programs Supportedmild learning/language-based disabilities / Attention Deficit Disorder / Dyslexia / Asperger syndrome /mild vision problems
Year Founded1969

Student Body

Total Students1250 students
Student Body TypeCo-ed
% Students of Color
State avg.: 26%
Students by GradeSt. Mark's High School Student By Grade

Academics and Faculty

Total Classroom Teachers110 teachers
Student : Teacher Ratio11:1
National avg.: 13:1
Average Class Size24 students
Number of AP Courses22 courses
List of Courses OfferedLink to List of Courses
Advanced CoursesBiology, Calculus AB, Calculus BC, Chemistry, Comparative Government & Politics, English Language, English Literature, Environmental Science, European History, French Language, German Language, Macroeconomics, Microeconomics, Music Theory, Physics C, Psychology, Spanish Language, Spanish Literature, Statistics, Studio Art, U.S. Government & Politics, U.S. History,
Average SAT score1150
Average ACT score23
Classroom Dress CodeFormal
(Boys: Regulation khaki pants and regulation polo shirt (Fall/Spring), regulation khaki pants, dress shirt, tie and blazer (winter) Girls: regulation khaki pants or skirt and regulation polo shirt)

Finances and Admission

Yearly Tuition Cost$10,000
Tuition NotesTuition payable in 11 monthly installments. Tuition assistance available
% on Financial Aid
Average Financial Aid Grant$2,000
Admissions DirectorClarice Kwasnieski
Admissions AssociateMarianne Driscoll


Total Sports Offered20 sports
SportsBaseball, Basketball, Cheering, Crew, Cross Country, Drill Team, Field Hockey, Football, Golf, Ice Hockey, Lacrosse, Soccer, Softball, Swimming, Tennis, Track and Field, Ultimate Frisbee, Volleyball, Winter Track, WrestlingBaseballBasketball,
Cross CountryDrill Team,
Field HockeyFootball,
GolfIce Hockey,
TennisTrack and Field,
Ultimate FrisbeeVolleyball,
Winter TrackWrestling,


Total ExtracurricularsTotal Extra-curric.42 extracurriculars
ExtracurricularsExtra-curric.Academic Challenge, Blue/Gold Friendship, Chemistry Club, Concert Band, Environmental Club, Fall Drama Production, Film Club, Film Production, Future Educators of America (FEA), Games & Strategy, Indoor Dance Team, International Club, Intramural Bowling, Jazz Band, Key Club, Law Club, Marching Band, Markings Literary Magazine, Math League, Mock Trial, Model United Nations, National Honor Society, Odyssey of the Mind, One Act Play Festival, Pax Christi, Peer Leaders, Precision Dancers, Psychology Club, SADD-YELL, School Newspaper, Science Olympiad, Sign Language Club, Ski Club, Spartan Morning News, Spring Musical, String Ensemble, Student Ambassadors, Tech Crew (Drama), Twirlers, Variety Show, Yearbook, Z Club Chemistry Club, Concert Band, Film Club, Jazz Band, Key Club, Law Club, Marching Band, Math League, Mock Trial, Pax Christi, Peer Leaders, SADD-YELL, Ski Club, Spring Musical, Twirlers, Variety Show, Yearbook, Z Club, Academic Challenge,
Blue/Gold Friendship,
Environmental Club,
Fall Drama Production,
Film Production,
Future Educators of America (FEA),
Games & Strategy,
Indoor Dance Team,
International Club,
Intramural Bowling,
Markings Literary Magazine,
Model United Nations,
National Honor Society,
Odyssey of the Mind,
One Act Play Festival,
Precision Dancers,
Psychology Club,
School Newspaper,
Science Olympiad,
Sign Language Club,
Spartan Morning News,
String Ensemble,
Student Ambassadors,
Tech Crew (Drama),

School Notes

  • 5 Academic Levels to meet the needs of each student
  • More than 100 service groups, clubs, activities and athletic teams
  • 98% of graduates pursue higher education
  • $1 million in need based tuition assistance available

Saint Mark's High School offers each student a unique blend of academics, arts, athletics, co-curricular activities, college scholarship opportunities, affordability and excitement, creating a high school experience that is unparalleled in the area. The private campus is spectacular with over 50 acres of land, situated just off Kirkwood Highway, minutes from Newark and easily accessible from Routes 1 and I-95.

Our co-educational program features five distinct academic levels and Delaware's largest Advanced Placement program. With the assistance of our college placement counselors, more than 97 percent of Saint Mark's graduates attend college with many awarded scholarships and grants to the school of their choice.

Continual improvements to our facilities and technology keep Saint Mark's on the cutting edge. Recent projects include renovating science labs and art rooms and expanding our athletic fields. We have been recognized both regionally and nationally for our leadership not only in teaching technology, but for also integrating it into our curriculum, empowering students to be better learners who are able to work in increasingly technology-dependent environments.

Saint Mark's remains one of the most affordable private or Catholic high schools in the area, and we are committed to helping parents afford an outstanding education for their children. In addition to providing in excess of $1 million in need-based financial aid every year, we also offer academic scholarships to entering freshmen based on their performance on the Entrance Test.

Since our first graduating class in 1973, Saint Mark’s graduates have been encouraged to “go forth from this school to create a better world more pleasing to God and more helpful to man.” Through rigorous academic offerings, competitive athletic programs, and immersive service opportunities, our students learn to be confident leaders and active participants, fully prepared to meet success in the college classroom as well as throughout their careers.

We invite you to come to Saint Mark's and experience our very special feeling of belonging. For more information, please call 302.757.8721 or visit our website at

What Our Students Say

"Saint Mark's has a bigger presence for colleges. I love how many extracurricular activities there are and our amazing theatre department. I really like the feel of the people—it makes it worth getting up so early in the morning." 
                                                                                                                                                      Merissa Cope '12

"When I shadowed here, I found it very welcoming. Everyone is treated the same."
                                                                                                                                                      Sean Locke '12

"Looking at other schools, Saint Mark's really stood out. Coming from a small school, I like the size and all of the activities. And I never had a teacher that I didn't like."
                                                                                                                                       Stephanie Angeloni '12

"I really like the academic environment, but what really stands out at Saint Mark's are the people. Both the faculty and staff are fantastic to be around."
                                                                                                                                       Shane Lelwica-Hebeisen '10

Profile last updated: 06/10/2016

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School Reviews

  5.00 out of 5  (3 reviews)
5  2/6/2017
I attended in the mid 80's. The school provided room to grow and mature in an enlightening and engaging environment. They help transform children into young adults who are thoughtful and compassionate. I didn't realize what a gift my parents gave me till later in life. I am privileged, now I can give back.
- Posted by
5  4/10/2015
I am very excited to start high school at st.marks. When i shadowed it was a nice and welcoming enviorment. I am african-american but everyone is so nice i think i will fit right in.
- Posted by
5  2/28/2012
I graduated in 1979 and would recommend this school to anyone who wants an education and prep for college.. Wonderful school.. Wonderful memories.. Thanks St. Marks.. Still miss it..
- Posted by

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The average private school tuition in Wilmington, DE is $17,595 for high schools (read more about average private school tuition across the country).
The average acceptance rate in Wilmington, DE is 81% (read more about average acceptance rates across the country).