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

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Thank you for your interest in Commonwealth School! Simply submit the form below to receive more information about our exceptional academic community and find out why Commonwealth is right for you.
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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.

What makes Commonwealth so uncommon?

Our community says it best...

"When I first came to Commonwealth, I was completely amazed and shocked by how much you learn, just the depth. All the teachers and all the students really cared about your learning. It's still my favorite part of Commonwealth." Charlee '23, hometown: Revere, Massachusetts

“All of the teachers love what they're doing. It's kind of contagious. The students also become engaged and interested. Class is so much better that way.” Sol '21, hometown: Cambridge, Massachusetts

“I chose to come here because the community felt so inviting. Everyone I spoke to was excited to be here and eager to be learning.” Lizzy '24, hometown: Lexington, Massachusetts

"I'm forever grateful for the rigor of Commonwealth's academic curriculum, for the passion my teachers taught with, and for the school's excellent leadership that allowed us to foster and explore our interests." Amanda ’15, hometown: Newton, Massachusetts

Three teenagers smiling while sitting on soccer pitch sidelines, arms around each other, school spirit