Uncommon Community

Uncommon Curiosity

Uncommon Opportunity

Commonwealth is a co-ed independent day school welcoming curious, highly motivated students in grades 9–12. Our close-knit community thrives on making meaningful intellectual and personal connections, while tapping into the opportunities surrounding our home in Boston’s Back Bay.

Meet Faculty and Students


I've never seen a school like it before, from the building to the close-knit community. I look forward to going to school everyday, as I never know what will happen next.   

Hanna '25

It is humbling and exhilarating to come to work every day to a place where people are working for a common goal with such a mix of competence and humanity.

César Pérez, History and Languages Teacher


I was first interested in Commonwealth by the small class sizes and the very rigorous environment. Visiting and having a virtual class was what drew me in. I'm very happy about making the choice to come here. The classes are intriguing, to say the least. There is difficulty but nothing I can’t handle. And the opportunities, such as Project Week, are unique, and they allow us to develop our own interests.

Aritra ’25


The notion of shared stewardship very aptly describes the sort of investment that all of our colleagues feel in Commonwealth. There's a desire to make sure that everything we do improves the place—and an appreciation for how complex the system is and the breadth of potential consequences. If you change one thing over here, how will it shift things over there?

Rebecca Jackman, Chemistry Teacher and Assistant Head of School

I get a real burst of energy when I’m able to help students navigate the complexities of the research process. I feel so lucky to have such an incredible patron base of high-level readers and thinkers in our students. 

Jake MacDonnell, Librarian and Registrar

You know, I was hearing about all these other schools, and they definitely had a lot to offer, but Commonwealth spoke more to me because I know they take academics seriously here, but they also care about you as a person and finding yourself. 

Sumaya ’26


Before I visited Commonwealth, I hadn’t thought about how going to a very small school would compare, coming from a bigger school. But now that I'm here, the small-school setting makes everyone a lot closer. You really know everyone in your grade and even a bunch of people outside it. It's been a lot of fun and a really big change from what I thought high school would be. It’s very freeing. 

Ethan ’26

By the Numbers


students in grades 9–12


self-identified students of color

$1.4 million

financial aid granted for 2023–2024


teachers holding advanced degree


student-to-faculty ratio


all-school getaways each year


average SAT composite score (Class of 2024)

Happening Now


There’s a reason “arts and sciences” were grouped together millennia ago, David Hodgkins says: they’re inextricably linked. Music—whether you sing it, play it, or just listen attentively to it—is as intellectually challenging and stimulating as any advanced math, science, or English course. Keep reading to learn how.

Commonwealth Theater, Then and Now

From three annual productions to recess soliloquies, Hancock skits to Shakespeare competitions, Commonwealth has a theatrical spirit. And in the school’s theater department, that spirit is nurtured as students, many of whom continue their creative endeavors as alumni/ae, organize productions like pro troupes. Take a seat with us as a cast of thespians, stagehands, and directors share why and how the program has endured—even in the midst of a pandemic.


These days, Anya ’25 can look back at her ninth-grade self and see how much her confidence has grown—thanks, in part, to more than a decade of classical Indian dance training. The Commonwealth community has been lucky enough to see years of talent show performances from Anya and, more recently, learn from her how dance can be one of many beautiful connections to one’s culture. 


Today’s youth will one day inherit the world in all its joy, strife, and complexity. How to prepare them for that not-so-distant future, when their prudence and resilience, their ability to understand and be understood, will be put to the test? More than 130 intrepid middle schoolers deepened these skills and sensibilities at this year’s COMMUN IX.

At Commonwealth, we’re looking for inquisitive, driven, and creative students from a wide range of backgrounds. We encourage you to visit us, talk with teachers and students, and see if Commonwealth is right for you.