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A+
Overall Niche Grade
How are grades calculated?
  1. Academics
    A+
  2. Diversity
    A
  3. Teachers
    A+
  4. College Prep
    A+
  5. Clubs & Activities
    A
  6. Sports
    A
St. Mark's School is a top rated, private, boarding, Christian school located in Southborough, MA. It has 365 students in grades 9-12 with a student-teacher ratio of 4 to 1. Tuition is $63,250 for the highest grade offered. After graduation, 99% of students from this school go on to attend a 4-year college.

Tuition

Yearly Tuition
$50,380
Tuition is for the highest grade offered and may have changed for the current school year. For more information, please contact the school.
Boarding (Tuition + Boarding)
$63,250
Received Financial Aid
30%
Average Financial Aid
$52,196

St. Mark's School Rankings

Niche ranks nearly 100,000 schools and districts based on statistics and millions of opinions from students and parents.

Academics

Average Graduation Rate
Average SAT
1360
102 responses
Average ACT
31
39 responses

Culture & Safety

Poll
56%
of students agree that they feel safe at their school.9 responses
Poll
44%
of students agree that they like their school and feel happy there.9 responses
Poll
What are your favorite school events or traditions?
Based on 18 responses
Report
  • Groton Night
    33%
  • Spirit week
    28%
  • Hand shaking ceremony
    22%
  • Form Nights
    6%
  • Homecoming
    6%
  • Spirit Week
    6%

Boarding

Students Boarding
74%
Boarding Days Per Week
7-day
Top Countries
China, South Korea
International Boarding Students
19%

Students

Diversity
A
Based on racial and economic diversity and survey responses on school culture and diversity from students and parents.
Students
365
50%
of students and parents agree that students at this school are competitive.10 responses
20%
of students and parents agree that students at this school are creative and artsy.10 responses
60%
of students and parents agree that students at this school are athletic.10 responses

Teachers

Student-Teacher Ratio
4:1
National
17:1
Poll
64%
of students and parents agree that the teachers give engaging lessons.14 responses
Poll
71%
of students and parents agree that the teachers genuinely care about the students.14 responses
Poll
64%
of students and parents agree that the teachers adequately lead and control the classroom.14 responses

Clubs & Activities

Clubs & Activities
A
Based on student and parent reviews of clubs and activities.
Girls Athletic Participation
Boys Athletic Participation
57%
of students and parents agree that there are plenty of clubs and organizations for students to get involved in.7 responses
57%
of students and parents agree that clubs and organizations get the funding they need.7 responses
29%
of students and parents agree that lots of students participate in clubs and organizations.7 responses
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St. Mark's School Reviews

34 reviews
All Categories
Average-poor school. Academics were average, students were not given the freedom to pursue advanced courses and most classes in the school do not prepare for APs or SATs (unless you pay for tutoring, of course). The entire "innovative learning" thing clearly isn't taking off- downgrading the academic rigor and college-readiness of the education. Few teachers are exceptional, many do not put genuine effort into teaching and clearly are not concerned about the well-being of students, neither do they seem to communicate w students outside of classes. Campus atmosphere is probably great if you're white upper-middle class: racism is pretty prevalent and no attention is given to international students. Sports obviously is a great thing but not everyone are athletes, perhaps toning down on the sports culture could be a more inclusive option?
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St. Mark's, overall it has been a life-changing experience. I have had many ups and downs while attending this school and it has taught valuable life-lessons. The school will sometimes illogically make decisions that are really pointless or negative to student-life/academics. Most of the positives regarding St. Mark's revolves around relationships that you make while attending. I will forever be thankful for St. Mark's.
St. Mark’s gave me the opportunity to develop as an intelligent young student in a diverse and supportive community. The teachers, coaches, dorm parents, and fellow students became my family, and I wouldn’t trade my high school experience for anything.