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Best Massachusetts Private Schools Belonging to National Association of Independent Schools (NAIS) (2025)

For the 2025 school year, there are 121 private schools belonging to National Association of Independent Schools (NAIS) serving 35,133 students in Massachusetts. You can also find more schools membership associations in Massachusetts.

The private schools belonging to National Association of Independent Schools (NAIS) in Massachusetts include Middlesex School, Tabor Academy, and Springfield Commonwealth Academy.

The average tuition cost is $44,510, which is higher than the Massachusetts private school average tuition cost of $26,162.

19% of private schools belonging to National Association of Independent Schools (NAIS) in Massachusetts are religiously affiliated (most commonly Catholic and Episcopal).

The Sage School Photo - Summer Sage offers six weeks of enrichment-based, hands-on workshops for curious and motivated students starting at 3 or 4 years old through Grade 6. Our wide variety of workshops allow students to explore their passions with like-minded peers. Classes are offered in-person on our campus in Foxboro, MA! Students have the option to attend morning, afternoon, or full-day sessions.

Bay Farm Montessori Academy Photo - Our Children`s House preschool/pre-k, kindergarten classrooms accommodate children in mixed-age classrooms that provide a safe, stimulating, nurturing, educational, and social foundation for future success.

Commonwealth School Photo - Two blocks from Copley Square, nestled in a pair of brownstones in Boston's Back Bay, the feeling of family persists at Commonwealth, and its location gives students unparalleled access to Boston's resources, fostering meaningful scholarly research, independent projects, and community service.

Miss Hall's School Photo - The MHS graduate is a thinker, a creator and a contributor to the common good. She is a global citizen, a self-aware, resilient, and courageous participant in a multicultural society. Empowered by skills and knowledge, the MHS graduate is able to solve problems with intellect and creativity while embracing a spirit of exploration and curiosity.

Fay School Photo - Fay School is located on a 66-acre campus 25 miles from Boston in Southborough, Massachusetts, and is the oldest junior boarding school in the United States. Fay currently serves students in Kindergarten through grade nine, with an optional boarding program starting in grade seven.

Kingsley Montessori School Photo - Elementary students exploring a geography work. A key component of the Kingsley mission is raising empathetic global citizens-students who care deeply for the world and work together to improve it.

Tabor Academy Photo - Tabor has 4 docks and over 140 "things that float" including a 115-foot double masted schooner that serves as a research vessel, sail boats, crew shells, and more.

The Roxbury Latin School Photo - En route à pied to Mont Saint-Michel, 10th graders have the opportunity to participate in French or Spanish immersion during the month of June.

Lexington Montessori School Photo - Lexington Montessori School: Hands-on, collaborative learning in a nurturing and engaging environment.

Brimmer and May School Photo - The Hastings Center opens limitless possibilities for our students with our Innovation Space, Makerspace, STEAM classroom, and Digital Media Center.

The Pike School Photo - Combine support, encouragement, and inspiration, and the sky's the limit. That's the power of positive energy. That's The Pike School!

The Learning Project Elementary School Photo

Pingree School Photo - The Pingree Robotics Team has competed in the Vex Robotics World Championships for two years in a row.

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