Riverstone International School (2026 Profile)

5521 East Warm Springs Avenue
Boise, ID 83716

Tel: (208) 424-5000 Ext. 2104

www.riverstoneschool.org

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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 400 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 8-12 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 Facts (2026)

Grades: (Boarding Students) 8-12
Grades: (Day Students) PK-12
Enrollment: 425 students
Yearly Tuition (Boarding Students): $51,000
Yearly Tuition (Day Students): $24,600
Acceptance rate: 80%
Average class size: 18 students
Application Deadline: None / Rolling
Source: Verified school update

Top Rankings

Riverstone International School ranks among the top 20 boarding schools (out of 307 schools) for:

School Overview

| 2025 School Data

Riverstone International School

Boarding School Avg.

School Focus

College Preparatory

Grades Offered (Boarding)

8-12

9-12

Grades Offered (Day)

PK-12

Pre-K-12

School Type

Co-ed

ADD/ADHD Support

Yes

Dual Language Immersion Program

Yes

Secondary Immersion Language

Spanish

n/a

Religious Affiliation

Non-denominational

Year Founded

1997

1909

Campus Size

14 acres

125 acres

School Calendar

View School Calendar

School Motto

Courageous Journeys

Student Body

Enrollment

425 students

300 students

% Students of Color

15%

25%

% International Students

27%

20%

% Students Boarding

10%

70%

Average SAT Score

1306
(Out of 1600)

* National Avg. »View

Average ACT score

31
(Out of 36)

*National Avg. »View

Offers Post-Grad Year

Academic Profile

Saturday Classes

Classroom Dress Code

Casual

Average Class Size

18 students

* National Avg. »18

Student-Teacher Ratio

7:1

Number of IB Courses Offered

ESL Courses Offered

Yes

% Faculty with Advanced Degree

57%

70%

Summer Program Offered

Yes

Summer Program Details

View Summer Program Details

Accreditations

The Association of Boarding Schools (TABS)

Tuition & Financial Aid

Endowment Size

$4 million

$25 million

Yearly Tuition
(Boarding Students)

$51,000

$59,900

Yearly Tuition
(Day Students)

$24,600
(Please see this link for additional information by grade level: www.riverstoneschool.org)

$33,500

% Students on Financial Aid

25%

40%

Merit Scholarships Offered

Yes

Admissions

Application Deadline

None / Rolling

Jan. 15

Acceptance Rate

80%

58%

Director of Admissions

Rachel Pusch

Application URL

Online Application

Sports

# Interscholastic Sports Offered

Sports

Alpine SkiingBasketball

Cross Country RunningMountain Biking

SnowboardingSoccer

Swimming and DivingVolleyball

Colors

Blue and Yellow

School Mascot

Otter

Extracurriculars

Total Extracurricular Organizations

Extracurriculars

Club or Organization:

Athletic LeadershipGreen Team

Language ClubsMath Club

Model United NationsOutdoor Leadership

Programming ClubRobotics Team

SAGA: Sexual and Gender AllianceScience Bowl

Social Change LeadershipStudent Council

Veggie ClubYearbook Club

Arts and Music Programs:

Musical Ensemble Groups

Recreational Athletic Programs:

Climbing ClubKayaking Club

Mountain Biking Club

College Matriculation

College Acceptance Rate

100%

View Matriculation Data

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.
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 our beautiful city and state have to offer.
The school offers a concierge college counseling and more than 30 athletic, musical, and academic extracurricular activities.

Source: Verified school update

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Frequently Asked Questions

How much does Riverstone International School cost?

Riverstone International School's tuition is approximately $51,000 for boarding students and $24,600 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 8 interscholastic sports: Alpine Skiing, Basketball, Cross Country Running, Mountain Biking, Snowboarding, Soccer, Swimming and Diving and Volleyball.

Does Riverstone International School offer a summer program?

Yes, Riverstone International School offers a summer program. Visit their summer school page for more information.

What is Riverstone International School's ranking?

Riverstone International School ranks among the top 20 boarding schools for High ACT scores.

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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