International School Of Boston

The International School of Boston (ISB) is a private, non-profit, Preschool (starting at age 2) - Grade 12 dual language school.
With a mix of local and international student body and faculty, ISB is one of the oldest, most respected bilingual schools in the United States.
ISB students learn in French and English, develop critical thinking skills, and thrive in a multicultural environment.
In addition to the American high school diploma, Upper School offers a choice between two academic tracks leading to the French or the International Baccalaureate, which enables ISB students to apply to any university in the world.
Through ISB`s internship program, Upper School students can spend one week in a real work environment.
They also have the opportunity to study for up to a trimester at a partner school abroad.
Our younger students take advantage of all that the Greater Boston area has to offer in terms of culture, arts, and history through experiential learning programs.
The ISB community is proud of its Blue Terriers Varsity Interscholastic soccer, basketball, volleyball and fencing teams.

Top Placements

International School Of Boston places among the top 20% of private schools in Massachusetts for:

School Overview

School TypeSchool with Special Program Emphasis
School Membership(s)School Assoc.National Association of Independent Schools (NAIS)
Religious AffiliationNonsectarian
Grades OfferedGrades Nursery/Preschool-12
Year Founded1962

Student Body

Total Students530 students
Student Body TypeCo-ed
Students by Grade International School Of Boston Student By Grade

Academics and Faculty

Total Classroom Teachers93 teachers
Student : Teacher Ratio6:1
National avg.: 13:1
% Faculty w/Advanced Degree
Average Class Size14 students
List of Courses OfferedLink to List of Courses
Matriculation DataMatric. DataLink to Matriculation Data
Classroom Dress CodeCasual

Finances and Admission

Admission DeadlineFeb. 15 / rolling
Yearly Tuition Cost$27,825
Tuition NotesTuition between $27,825 and $39,165
% on Financial Aid
Admissions DirectorLucy Pelham
Admissions AssociateElisabeth Geffray


Total Sports Offered4 sports
SportsBasketball, Fencing, Soccer, VolleyballBasketballFencing,

School Notes

  • Opened in 1962, ISB enrolls 530 students representing 44 nationalities.
  • At ISB, students learn to thrive in a diverse, multilingual and multinational community, by pairing the study of international languages with the study of math, science, history and national cultures. This integrated curriculum enables students to experience, rather them simply learn about, the world in which they live.
  • Preschool through Kindergarten: French Immersion Program
  • 1st through 8th grade: Dual Language Program (French & English)
  • 9th through 12th grade: Students choose between the International Program leading to the International Baccalaureate and the Bilingual Program leading to the French Baccalaureate.

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School Reviews

  5.00 out of 5  (2 reviews)
We've been with ISB for several years now and my daughter is so happy with the program and with her friends. Teachers are amazing, dedicated, well-educated and really care about their students. Love the emphasis on building empathy and valuing the diversity of perspective. She is in middle school now and we plan to stay for the IB program in the upper school.
- Posted by
We've been with ISB for several years now. One child in middle school, the other in upper school. We were previously happy with the school but are even happier now with the recent change in leadership. Our children have thrived at ISB. They come from an English-speaking home, so the opportunity to connect them with another language and with a more globally focused curriculum and internationally diverse student community has been amazing.
- Posted by

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Did You Know?
The average private school tuition in Massachusetts is $13,091 for elementary schools and $32,199 for high schools (read more about average private school tuition across the country).
The average acceptance rate in Massachusetts is 71% (read more about average acceptance rates across the country).