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    Riverstone International School ::: Boise, Idaho ::: West U.S.

    Riverstone International School

    • International Baccalaureate Programme
    • Located in Boise Idaho, the second largest City in the Pacific Northwest and top-ranked for safety, livability and recreation
    • 330 students (PreK-12:boarding (grades 9-12); 20% international; Average class size 15 students.
    • Coeducational boarding with no religious affiliation
    • Excellent University Placement including Brown University, Harvard University, Stanford University, among others
    • ESL program




    Four seasons, hot, dry summers and moderately cold winters

    Student Body

    330 students (Preschool - 12); boarding grades 9-12; 20% international

    Average Class Size

    15 students


    45 faculty; 45% with advanced degrees; IB credentialed faculty

    Student/Faculty Ratio


    College Placement

    100% university placement including Brown University, Harvard University, Pomona College, Stanford University, University of Chicago among others

    Honors & AP

    All courses at the International Baccalaureate level

    IB courses: Biology (standard and higher level), Business and economics (standard level), Chemistry (standard and higher level), English language for non-native speakers, English literature (higher level), French (standard and higher level), History of the Americas (higher level), Mathematics (standard and higher level), Math studies (standard level), Music (standard and higher level), Physics (standard and higher level), Spanish (standard and higher level), Visual arts (standard and higher level), World religions (standard level), Theory of knowledge, Extended essay 

    Special Programs

    Outdoor education program that includes backpacking through the Sawtooth Mountains, Idaho desert and Utah Grand Gulch, overnight yurt and snow cave trips while learning about environmental sustainability and acquiring outdoor and life skills.

    Leadership programs for athletics, social change and outdoor education.

    Marking System

    Two semesters per year. Students are graded on the International Baccalaureate system of 1-7; grades are also translated to U.S. grading scale of A, B, C, etc. on report cards and transcripts.

    Programs of Study

    The minimum graduation requirements for grades 9 through 12 are as follows:

    IB Subject Groups

    Studies in Language and Literature - 4 years
      (English literature or native language)
    Language Acquisiton - 4 years
      (Non-native language: Spanish, French, Mandarin or English)
    Individuals and Societies - 4 years
      (Modern World, U.S. History, World Religions, Business & Economics)
    Mathematics - 4 years
    Science - 4 years
      (Physics, Chemistry,Biology - all with laboratory)
    The Arts - 4 years
      (Visual Arts and Music)
    Design Technology & Physical Education - 2 years
      (Grades 9 & 10 only)

    Plus Diploma Programme Core Requirements
      Theory of Knowledge
      Creativity, Action and Service
      Extended Essay


    SAT/ACT Scores:  Average SAT = 2018; Average ACT = 29



    Riverstone International School is accredited by AdvancED, International Baccalaureate World School


    Sports: Alpine Skiing, Basketball, Orienteering, Soccer, Snowboarding, Volleyball


    Art: Studio Arts, Music Performance, Music Composition, Music Ensembles, Theater

    Extracurricular Activities

    Activities and Clubs: Climbing Club, Kayaking Club, Language Club, Model UN, Mountain Biking Club, National Historic Day, Student Council, Veggie Club, Yearbook 


    3 academic buildings, athletic fields, gymnasium, residence hall, tennis courts


    Language class for non-native English speakers (fewer than 10 students per class)