Co-ed independent day school in Boston's Back Bay for academically adventurous students in grades 9–12

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You have a few things to consider now. Does the thought of joining a friendly group of enthusiastic scholars appeal to you? Are you eager to be challenged by teachers who are as warm and supportive as they are passionate academics? Do you want to play—in the band, on the field, or just a game of chess? Would you like to commute to and from Boston’s Back Bay and have the city right outside your door? Will you join (or lead) the Math Team, Gender-Sexuality Alliance, Debate Team, Robotics, or Evil Genius Club? Are you ready to learn what you love and love what you learn? Think about what you might accomplish here. And take the next step to join us.
 
Please note that our application deadline for fall 2024 entry has passed, and we are not accepting additional applications at this time. If you remain interested, we suggest that you contact us in mid- to late-April; we may find ourselves in a position to consider late applicants in the coming months.

   

Important Dates and Deadlines

January 16

Application deadline

 

March 10

Admission and financial aid decisions released

 

April 10

Deadline for students offered admission to respond

 

   

Commonwealth is definitely a good place for people who want to try new things and want to be challenged, especially in academics but also for arts and even athletics. I think it's a place where you can really be yourself.

 

Juliana
Class of 2026

   

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Get a Sneak Preview with a Virtual Visit

We cannot wait to welcome applicants and their families to our building! In the interim, you can visit us virtually.

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Commonwealth School has a longstanding policy of nondiscriminatory admission of students. The School admits qualified students of any race, color, religious affiliation, national and ethnic origin, ancestry, sex, mental or physical disability, gender identity or sexual orientation to all the rights, privileges, programs and activities generally accorded or made available to students at the School. The School does not discriminate on the basis of race, color, religious affiliation, national and ethnic origin, ancestry, sex, mental or physical disability, gender identity or sexual orientation or any other status protected by applicable law in the administration of its educational policies, admissions policies, financial aid and loan program, and athletic or other school-administered programs.
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