Washington International School (WIS) is a coeducational day school offering 900 students a challenging international curriculum and rich language program from Preschool through Grade 12.
Students in Preschool through Grade 5 follow the International Baccalaureate (IB) Primary Years Program (PYP).
In Grades 6-10 students pursue a course of study designed to build skills in key areas while enhancing their ability to think deeply and solve problems.
In their final two years of high school, all students are enrolled in IB Diploma Program courses.
We equip children with the tools to master rigorous academic challenges in math, science, languages, literature, social sciences, and the arts.
An active sports schedule, programs in the arts, participation in clubs, community service in Washington, DC and around the world, and travel programs-for study and for fun-help create well-rounded students who are also engaged global citizens.
Quick Stats (2024-25)
- Top Ranked DC School
- School Type: School with Special Program Emphasis
- Grades: Nursery/Preschool-12
- Enrollment: 890 students
- Yearly Tuition: $51,710
- Average class size: 14 students
- Application Deadline: Jan. 5
- Source: Verified school update
Top Rankings
Washington International School ranks among the top 20% of private schools in District Of Columbia for:
Category
Attribute
Student Body
School Overview
School Type
Religious Affiliation
Grades Offered
Grades Nursery/Preschool-12
Dual Language Immersion Program
Secondary Immersion Language
Other
Year Founded
1966
Student Body
Total Students
890 students
Student Body Type
Co-ed
Students by Grade
Academics and Faculty
Total Classroom Teachers
106 teachers
Student : Teacher Ratio
8:1
National avg.: 13:1
% Faculty w/Advanced Degree
72%
Average Class Size
14 students
List of Courses Offered
Average SAT score
1380
(Out of 1600)
Average ACT score
31
(Out of 36)
Matriculation DataMatric. Data
Classroom Dress Code
Casual
Tuition and Acceptance Rate
Admission Deadline
Jan. 5
Yearly Tuition Cost
$51,710
Tuition Notes
Preschool Tuition: $32,190
Pre-Kindergarten Tuition: $40,980
Kindergarten Tuition: $44,495
Grade 1 to Grade 5 Tuition: $45,730
Middle School Tuition (Grades 6-8): $50,970
Upper School Tuition (Grades 9-12): $51,710
% on Financial Aid
16%
Average Financial Aid Grant
$34,739
Admissions Director
Mary Hastings Moore
Endowment Size
$10.4 million
Sports
Total Sports Offered
7 sports
Sports
Extracurriculars
Total ExtracurricularsTotal Extra-curric.
4 extracurriculars
ExtracurricularsExtra-curric.
Club or Organization:
many student-organized clubs
Arts and Music Programs:
chorus and instrumental music., In middle and upper schools, two musicals and two plays each year
many student-organized clubs
Arts and Music Programs:
chorus and instrumental music., In middle and upper schools, two musicals and two plays each year
Source: Verified school update
Frequently Asked Questions
How much does Washington International School cost?
Washington International School's tuition is approximately $51,710 for private students.
What schools are Washington International School often compared to?
Washington International School is often viewed alongside schools like Georgetown Day School by visitors of our site.
What sports does Washington International School offer?
Washington International School offers 7 interscholastic sports: Basketball, Cross Country, Golf, Soccer, Tennis, Track and Field and Volleyball.
What is Washington International School's ranking?
Washington International School ranks among the top 20% of private schools in District Of Columbia for: Largest student body.
When is the application deadline for Washington International School?
The application deadline for Washington International School is Jan. 5.
In what neighborhood is Washington International School located?
Washington International School is located in the Northwest Washington neighborhood of Washington, DC. There are 60 other private schools located in Northwest Washington.
School Calendar
View the Washington International School yearly calendar below. Note key dates such as:
Event
Date
Last Day of Classes
December 20, 2024 (Friday)
NO SCHOOL | Spring Break
March 22, 2025 (Saturday)
Primary School Spring Break Camp
March 24, 2025 (Monday)
Last Day for Students | HALF DAY
June 11, 2025 (Wednesday)
Last Day for Teachers
June 13, 2025 (Friday)
School Reviews
Endorse Washington International School. Endorsements should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
- Academic or athletic awards
Recent Articles
U.S. Private Schools: A Guide for International Students
Dive into the nitty-gritty of attending U.S. private schools as an international student. From tackling the admissions maze to conquering the TOEFL, this guide's got you covered. We'll walk you through visa hurdles, financial realities, and even virtual campus tours. Buckle up for an insider's look at making your American education dreams a reality!
Early Childhood Education: A Guide for Parents of 1 and 2 Year Olds
In this article we explore three popular approaches to early childhood education: Montessori, Reggio Emilia, and Waldorf. It provides parents of toddlers with essential information about each method, helping them make informed decisions about their child's early education.
Making the Right Choice: A Parent's Guide to Private School Selection
We explore the reasons to consider private school education, compares boarding and day school options, and outlines essential factors in choosing the right school. It provides parents with valuable insights to make informed decisions about their child's education, drawing from real-world scenarios and expert advice.