Riverstone International School

5521 East Warm Springs Avenue
Boise, ID 83716
Tel: (208) 424-5000 Ext. 2104
Riverstone International School Photo #1 - Welcome to Riverstone International School! We look forward to welcoming you to our school in beautiful Boise, Idaho!
Riverstone International School Photo #1 - Welcome to Riverstone International School! We look forward to welcoming you to our school in beautiful Boise, Idaho!
Riverstone International School Photo #2 - Riverstone students thrive because of small classes, personal attention, and challenging opportunities. Our student to teacher ratio is 7:1. Our faculty serve as mentors for clubs and lead our outdoor trips, forming strong bonds with students that are highlights of a student's time at Riverstone.
Riverstone International School Photo #3 - Academic excellence focuses on ensuring academic and personal growth for every student. Our classroom curriculum is based on the International Baccalaureate (IB) World Programmes, an internationally-recognized education that challenges students both academically and personally.
Riverstone International School Photo #4 - Not all classrooms have walls! Backpacking, canoeing, rock climbing and winter camping help students develop environment skills and strong connections with faculty.
Riverstone International School Photo #5 - Extending fun and learning beyond the school day. High School students participate in our athletic teams, musical ensembles, robotics team, yearbook club, Model UN team, and more.
Riverstone International School Photo #6 - Riverstone House, steps away from downtown Boise, is the home-away-from-home for our boarding community. With only 30 students maximum, our students and staff become family.
Riverstone International School Photo #7 - Study, relax and connect with friends in our light-filled dormitory for 30 students. Double occupancy rooms, fully secure building, family-style dining, transport to and from school, and dorm staff to help at all times.
Riverstone International School Photo #8 - Recognized as one of the U.S. most livable cities, Boise, Idaho is the third largest city in the Pacific Northwest. The cultural vibe is relaxed and welcoming, making Boise a perfect place for boarding students who want to feel part of a larger community.
Riverstone International School Photo #9 - A tradition of stellar college placement! At Riverstone International School, we take great pride in preparing students for success in college and university - and for life beyond their academic careers. One-hundred percent of Riverstone graduates have been accepted into four-year colleges and universities.
Riverstone International School Photo #10 - Adventure awaits! Learn more at our website, connect with us on social media, and inquire today! Are you ready for your adventure?
Riverstone International School is a premier, private International Baccalaureate World School in Boise, Idaho, offering day and boarding students challenging opportunities and the personal support to develop into independent, creative and collaborative thinkers.
With 425 students enrolled from preschool through high school, 40 countries are represented in the school`s community.
A maximum of 32 students from the U.S. and around the world in grades 9-12 are enrolled in the school`s boutique boarding program.
The school`s Five Pillars--Academic Excellence, Community and Service, Leadership by Example, International Understanding and Outdoor Education--provide pathways for students to explore academically and personally. Small classes and strong relationships with teachers facilitate a highly personalized educational experience for students.
One hundred percent of graduates are accepted into 4-year colleges worldwide. Alumni credit their connections to teachers, friendships with classmates from around the world, the global context of the IB curriculum, and outdoor experiences as having the biggest impact on their future success.

Quick Stats (2023)

  • Grades: (Boarding) 9-12
  • Enrollment: 425 students
  • Yearly Tuition (Boarding Students): $51,500
  • Yearly Tuition (Day Students): $20,325
  • Acceptance rate: 80%
  • Average class size: 18 students
  • Application Deadline: None / Rolling
  • Source: Verified school update

School News

    Riverstone International School received outstanding results on the Measure of Academic Performance (MAP) tests, which concluded this past month. Grades 6-10 took their Math and Language MAP test in the ...morefall and again in the spring to compare their progress over this past school year. These results show that our Grade 6 students outperformed students nationally in grades 6, 7, 8, 9 and 10. (see graph in link). hide
    We are thrilled to announce that Riverstone International School has-once again-made the Washington Post`s prestigious list of "America`s Most Challenging High Schools." This year`s ranking places Riverstone at #67, ...morelanding the school in the top 1% in the nation and taking top ranking honors in Idaho for both public and private schools. Riverstone was previously ranked #170 in 2019 when the Jay Mathews Challenge Index was last updated. hide

School Overview

Definition of Terms | 2022 School Data
Riverstone International School
Boarding School Avg.
School Focus
College Preparatory
College Preparatory
Grades Offered (Boarding)
Grades Offered (Day)
School Type
ADD/ADHD Support
Religious Affiliation
Year Founded
Campus Size
14 acres
125 acres

Student Body

425 students
315 students
% Students of Color
% International Students
% Students Boarding
Average SAT Score
* National Avg. »View
Average ACT score
*National Avg. »View
Offers Post-Grad Year

Academics and Faculty

Saturday Classes
Classroom Dress Code
Average Class Size
18 students
* National Avg. »18
Student : Teacher Ratio
Number of IB Courses Offered
ESL Courses Offered
% Faculty with Advanced Degree
Summer Program Offered

Tuition Cost

Endowment Size
$4 million
$25 million
Yearly Tuition
(Boarding Students)
Yearly Tuition
(Day Students)
(Please see this link for additional information by grade level: www.riverstoneschool.org)
% Students on Financial Aid
Merit Scholarships Offered

Acceptance Rate

Application Deadline
None / Rolling
Jan. 15
Acceptance Rate
Director of Admissions
Rachel Pusch

AP / Advanced Courses

# of AP / Advanced Courses Offered
IB Biology HL / SL, IB Chemistry HL / SL, IB English Language & Literature HL / SL, IB Global Politics HL / SL, IB Mandarin HL / SL, IB Mathematics: Analysis and Approaches HL / SL, IB Mathematics: Applications and Interpretations HL / SL, IB Music HL / SL, IB Physics HL / SL, IB Psychology HL / SL, IB Spanish HL / SL, IB Theory of Knowledge, IB Visual Art HL / SL, IB World Religions SL, MYP Art, MYP English Language and Literature, MYP Health education, MYP Mandarin, MYP Math (skill level based for grades 9 - 10), MYP Music, MYP Spanish, MYP10 Chemistry, MYP10 Modern East Asian History, MYP10 Personal Project, MYP9 Conceptual Physics, MYP9 Modern European History, Pamoja Online Language ab-initio French, Pamoja Online Language ab-initio Mandarin, Pamoja Online Language ab-initio Spanish



Total Extracurricular Organizations
Club or Organization:
Athletic Leadership, Green Team, Language Clubs, Math Club, Model United Nations, Outdoor Leadership, Programming Club, Robotics Team, SAGA: Sexual and Gender Alliance, Science Bowl, Social Change Leadership, Student Council, Veggie Club, Yearbook Club

Arts and Music Programs:
Musical Ensemble Groups

Recreational Athletic Programs:
Climbing Club, Kayaking Club, Mountain Biking Club

College Matriculation

10 Most Popular College Choices  (# Enrolled)

School Notes

  • Our boutique boarding program provides a family-like experience for a maximum of 32 students from the U.S. and around the world.   Our downtown Boise dormitory location gives students the opportunity to experience the Pacific Northwest culture and connect with the greater Boise community.
  • International Baccalaureate experts: Riverstone is one of four IB continuum schools offering a boarding program. Teachers provide guidance and encouragement to students, and Riverstone's three year average IB diploma program pass rate exceeds the global average. In 2020, 100% of Riverstone diploma candidate students were awarded the IB diploma.
  • Outdoor education: Students explore Idaho and Oregon's mountains and rivers with classmates and teachers.
  • Located in the Pacific Northwest, Boise, Idaho is one of the most liveable and safe cities in the U.S. Our recently-built dormitory is located in downtown Boise, the third most populous city in the Pacific Northwest, with easy access to skiing, kayaking, and mountain biking. Our four-season climate and safe city provide opportunities for students to recreate, shop, and explore all that our beautiful city and state have to offer. 
  • The school offers concierge college counseling and more than 30 athletic, musical, and academic extracurricular activities.
  • Riverstone International School accreditations: International Baccalaureate Organization (IBO), National Association of Independent Schools (NAIS), NWAIS, AdvancEd
Source: Verified school update

Frequently Asked Questions

How much does Riverstone International School cost?
Riverstone International School's tuition is approximately $51,500 for boarding students and $20,325 for day students.
What is the acceptance rate of Riverstone International School?
The acceptance rate of Riverstone International School is 80%, which is higher than the boarding school average of 58%.
What sports does Riverstone International School offer?
Riverstone International School offers 9 interscholastic sports: Alpine Skiing, Basketball, Cheering, Cross Country Running, Mountain Biking, Snowboarding, Soccer, Swimming and Volleyball.
When is the application deadline for Riverstone International School?
The application deadline for Riverstone International School is rolling (applications are reviewed as they are received year-round).
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Quick Stats (2023)

  • Grades: (Boarding) 9-12
  • Enrollment: 425 students
  • Yearly Tuition (Boarding Students): $51,500
  • Yearly Tuition (Day Students): $20,325
  • Acceptance rate: 80%
  • Average class size: 18 students
  • Application Deadline: None / Rolling
  • Source: Verified school update

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