St. Mark's School

  • Founded: 1865
  • Address: 25 Marlboro Road Southborough - Massachusetts, United States (Map)
  • Tel: Show Number

Inquiry

Please complete this form to receive our Viewbook and information on how to apply to St. Mark's School.

Please allow 24 hours for us to process this form before scheduling a tour and interview. This inquiry form is not the application.

Schedule an Interview

  • Our interview schedule for the current year applicants will open the first week of August.
  • An interview is a required part of your application. All interviews must be scheduled by January 15th of last year, and conducted by January 31st of last year in order to receive a March 10 decision. Students interviewing after January 31 will be considered for the second round of admission decisions.

A visit to St. Mark’s is the best way for prospective families to experience our “school under one roof,” meet with faculty and students, and gain a better understanding of our academic, artistic and athletic programs. Students with special interests are encouraged to request meeting with specific program directors and coaches when scheduling the visit.

Due to distance limitations, some families cannot visit campus. If you are unable to arrange an on-campus visit or interview at St. Mark’s, please contact us and we will be glad to set up a Skype interview with an admission officer.

International students: please refer to our International Applicants page before contacting us to schedule a visit.

What to Expect

  • An interview is a required part of your application. If you are both touring and interviewing, please allow for a 2 hour visit. Otherwise, please allow for a 1 hour visit.
  • An appointment is necessary for an interview and/or student-guided tour; we cannot accommodate walk-ins.

Please call 508.786.6118 to schedule your appointment. If you arrive on campus without an appointment, please check in at the front desk to secure a visitors pass. You may walk around the grounds, however for security reasons we ask that you not tour the buildings unattended.

  • When our class schedule permits, students are toured by current St. Markers and parents are toured by a member of our faculty. Please expect your tour to take approximately 45-55 minutes.
  • Both student and parents meet with an admission officer at the conclusion of the tour (note the admission interview is required to complete our application.)

How to Apply to St. Mark's

  • We are pleased that you have decided to become a candidate for admission to St. Mark’s School.
  • All steps necessary to complete the application process are outlined below. Please feel free to contact us if you have any questions.

Schedule a Visit to St. Mark's

An interview is REQUIRED as part of the application process, so please schedule a visit to St. Mark’s. Contact the Admission Office 508-786-6118 or admission@stmarksschool.org as our appointment calendar fills quickly. International students, please refer to our International Applicants page before contacting us to schedule a visit.

Required Testing

  • The Secondary School Admission Test (SSAT) is required for all applicants. For more information on registration and test dates, call SSATB in Princeton, NJ at 609-683-4440 or via the web at http://www.ssat.org/.
  • To ensure St. Mark’s receives your official score report, our SSAT school code is: 6730.
  • Domestic applicants may submit the Independent School Entrance Exam (ISEE) in lieu of the SSAT. For more information on registration and test dates, call ERB at 800-989-3721 or via the web at http://www.erblearn.org/.
  • To ensure St. Mark's receives your official score report, our ISEE school code is: 570103.
  • The Test of English as a Foreign Language (TOEFL)* is required of all applicants whose primary language is not English. For more information, call TOEFL at 609-771-7100 or via the web at http://www.toefl.com/.
  • To ensure St. Mark’s receives your official score report, our TOEFL school code is: 9222.
  • The International English Language Testing System (IELTS)* may be submitted in lieu of the TOEFL if you have an overall band score of 7.5 or higher. For more information, call IELTS at 323-255-2771 or via the web at http://www.ielts.org/.
  • To ensure St. Mark's receives your score report, please remember to ask your test center to submit your scores electronically to our institution. An institutional code is not required. No paper test forms will be accepted.

*St. Mark's does not accept the iTEP SLATE, SLEP, or TOEFL Jr. tests.

Complete Application

The completed application and the application fee must be postmarked or submitted online by January 31 for the first round of admission decisions. Please do not submit multiple application types as this will slow the processing of your application.

You can:

  • Apply online through Gateway to Prep Schools (GTP)* or the Standard Application Online (SAO)* common applications.

*Please review the online checklist information at the bottom of this page.

Please note, whether you choose to apply through GTP or SAO, all applicants are required to complete St. Mark's application supplement and fulfill all of the recommendation requirements listed in sections 4 and 5 below.

  • The St. Mark's Application Supplement for SAO applicants is included on the SAO website
  • The St. Mark's Application Supplement for Gateway applicants is included on the Gateway website

Required Supplement: EMA's Character Skills Snapshot (CSS)

St. Mark's is more than just a place where your child will learn math, English, and science. Certainly the reason you're seeking to enroll your child here is because you're interested in an education that focuses on instilling character values and encouraging personal growth. Similarly, we know that your child is much more than grades and test scores. That's why we're asking your child to take The Character Skills Snapshot as part of their application. It will give us richer holistic information about your child, and show us areas where our community can help them grow, thrive, and shine. Visit the Enrollment Management Association (EMA) to learn more.

Recommendation Forms

St. Mark's requires three current teacher recommendations: English, Math, and Foreign Language. Ask your current teachers to complete the forms after November 1 and submit them to our office by January 31. If you are not enrolled in a foreign language course, or if English is your foreign language, please submit the science recommendation instead. The Special Interest Recommendation form is optional. St. Mark’s accepts the Common Recommendation form.

Please note that both GTP and SAO applicants are still required to submit all three recommendation forms.

If you are an SAO applicant who used the "Any Teacher" recommendation for another subject; please ask your current foreign language or science teacher to complete a third recommendation for St. Mark's using the PDFs below.

  • Foreign Language Recommendation Form
  • Science Recommendation Form
  • Optional Special Interest Recommendation Form

School Report Form (Principal or Counselor Recommendation) and Home Schooling Supplement

Ask a school official to submit the completed School Report form and a complete transcript from the previous and current year. In addition, ask your school to submit updated grades through February when they become available. If you are applying through St. Mark's online application portal, please send your principal or guidance counselor an email invitation through the portal to complete the online recommendation.

School Report Form

Home schooled students are required to submit the Home Schooling Supplement. You may download a printable copy or contact the admission office to have one mailed.

Portfolio Submission (Optional)

If you have a well developed talent in the creative or performing arts, you may submit samples of your work for review by St. Mark's art, theater and music faculty. You may also submit athletic videos for our coaches to view. St. Mark's accepts athletic videos and art submissions via Slideroom. Please review the detailed submission instructions on the Slideroom website. If you elect not to submit materials via Slideroom, you may include with your application a printed art portfolio or athletic resume that lists your training and experience, repertoire or roles performed and honors received. For network security purposes, we cannot accept submissions via USB drives, CD, DVD, or email.

St. Mark's Online Portal and Checklist Information

As our office begins to process applications, we will send each family an email with an invitation link to their St. Mark's online checklist account. Please note that while we process submitted items as soon as possible once they are received, we typically do not begin sending out the checklist invitation until late November or early December.

Important to know for checklist account creation:

  • If you are a GTP, SAO, or Community Based Organization applicant, please wait until you receive our email invitation link to create your checklist account. Please do not create a St. Mark's account on your own as this will slow down the processing of your application.
  • The invitation email will have the subject: St. Mark's School: Confirm your email
  • Invitations will be sent to parent emails.
  • Remember to check spam folders and add @stmarksschool.org to your safe senders list.

Important to know for checklist tracking:

  • Please remember that our application is made up of multiple GTP and SAO components (Candidate Profile/Bio, Parent Statement, Student Statement, SM Supplement), if we are missing one of those four components, your "application" checkbox will not be marked complete in your St. Mark's online checklist.
  • St. Mark's requires two years of transcripts plus your current grade report. If your school only uploaded one of these three items, this requirement may be marked as complete on GTP or SAO, but it will NOT be marked complete on St. Mark's checklist until we have received all three from your school.
  • If you see that a recommendation or item is marked incomplete, and you believe it has been submitted, please contact our office. Please remember however that our checklist is not "real-time" and allow 48 business hours for processing.

Letters of decision will be posted to the St. Mark's Online Portal** on March 10, and your reply is expected by April 10. Students who are accepted will be invited to Re-Visit campus during select dates in early April.

**Applicants, if your parent(s)/guardian(s) have not received their account activation email invitation to the St. Mark's Online Portal by March 1, please email admission@stmarksschool.org immediately.

2026-05-01T00:01:02+04:00