St. Mark's School
PrivateHighGrades 9–12Religious
25 Marlboro Rd, Southborough, MA 01772 · (508) 786-6104
Southborough’s School Grade A+ better than 99% of Massachusetts school districts
Students
377
Students per teacher
4:1
Setting
Suburb
Grades
9–12
What stands out about St. Mark's School
- Small classes: 4 students per teacher
- Private school: it doesn’t take Massachusetts’s state tests
Location
Directions ↗25 Marlboro Rd, Southborough
Students
Enrollment by grade
Grade 993
Grade 10105
Grade 11109
Grade 1270
Who goes here
White 47%Asian 37%Black 6%Two or more races 6%Hispanic 3%American Indian/Alaska Native <1%Native Hawaiian/Pacific Islander <1%
As reported to NCES, share of students with a reported race or ethnicity.
Parents talk
Questions and answers about St. Mark's School from Southborough families.
School facts: U.S. Department of Education (NCES), 2023–2024 school year. Map: © OpenStreetMap contributors.