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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 $61,200 for the highest grade offered. After graduation, 99% of students from this school go on to attend a 4-year college.
Address
25 Marlboro Road
Southborough, MA 01772
Telephone
(508) 786-6000

Tuition

Yearly Tuition
$48,750
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)
$61,200
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
1330
87 responses
Average ACT
28
40 responses

Culture & Safety

Poll
57%
of students agree that they feel safe at their school.7 responses
Poll
43%
of students agree that they like their school and feel happy there.7 responses
Poll
What are your favorite school events or traditions?
Based on 17 responses
Report
  • Groton Night
    35%
  • Spirit week
    29%
  • Hand shaking ceremony
    24%
  • Form Nights
    6%
  • Homecoming
    6%

Boarding

Students Boarding
74%
Boarding Days Per Week
7-day
Top Countries
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.8 responses
25%
of students and parents agree that students at this school are creative and artsy.8 responses
63%
of students and parents agree that students at this school are athletic.8 responses

Teachers

Student-Teacher Ratio
4:1
National
17:1
Poll
67%
of students and parents agree that the teachers give engaging lessons.12 responses
Poll
75%
of students and parents agree that the teachers genuinely care about the students.12 responses
Poll
67%
of students and parents agree that the teachers adequately lead and control the classroom.12 responses

Clubs & Activities

Clubs & Activities
A
Based on student and parent reviews of clubs and activities.
Girls Athletic Participation
Boys Athletic Participation
60%
of students and parents agree that there are plenty of clubs and organizations for students to get involved in.5 responses
60%
of students and parents agree that clubs and organizations get the funding they need.5 responses
20%
of students and parents agree that lots of students participate in clubs and organizations.5 responses
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St. Mark's School Reviews

33 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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Fantastic STEM program as well as fantastic teachers. The new STEM building along with the programs they offer such as STEM fellowship are phenomenal. The school offers many recourses for those who want them, helping find summer programs that fit an academic interest and helping students apply for them as well as finding financial grants for those who cannot afford it. The general education and college preparation are fantastic. As a student, you have one college counselor for a total of 30 kids, half of which are juniors and half of which are sophomores.
If you live in New England, for parents this is an ideal school. Kids tend to go home on the weekends, however, the community is very close-knit and kids tend to visit each other if they live near each other. The international community is a bit limited and on weekends the campus tends to be a bit bare but there is progress being made towards fixing these issues.
Coming to St. Mark's has been one of the best decisions I've ever made. The teachers are passionate and want to see their students succeed, and they excel at teaching their curriculum in an effective and engaging way. I have formed many amazing relationships with my teachers here, something I never really expected.
The community here is also amazing. Obviously it's high school, so a bit of drama and clique-yness is unavoidable, but really the kids here are so welcoming and friendly. There's a great school atmosphere. I've made many close friends since coming here, I absolutely love it.
Feels like a home away from home.