How much is Washington International School tuition?

For 2026-27, tuition at Washington International School is $34,315 for grades Preschool; $43,685 for grades Pre-K; $47,430 for grades K; $49,930 for grades 1-5; $55,780 for grades 6-8; $56,820 for grades 9-12, per the school's website.

Does Washington International School require the ISEE or SSAT?

It depends on the grade: no test for grades Preschool, Pre-K, K; its own assessment for grades 1-5.

When is the Washington International School application deadline?

The main application deadline is January 5, 2027, and decisions are released February 26, 2027. Families apply through the school's own portal.

What are Washington International School's average SAT scores?

Washington International School students averaged 1340 on the SAT (class of 2026), per the school profile.

Does Washington International School offer financial aid?

Yes. Washington International School reported $5,388,872 in financial aid to 138 students on its 2024 IRS Form 990.

How many students attend Washington International School?

Washington International School enrolls 900 students in grades Pre-K–12, with about 7 students per teacher (NCES Private School Survey, 2023-24).

All private schools

Washington International School tuition & admissions

Washington, DCGrades Pre-K–12Day, coedwis.edu

Tuition 2026-27

$56,820

Highest grade band

Application deadline

January 5

2027

Students

900

7 students per teacher

Admission test

Varies by grade

Tuition 2026-27

Grades	Day
Preschool	$34,315
Pre-K	$43,685
K	$47,430
1-5	$49,930
6-8	$55,780
9-12	$56,820

Financial aid: $5,388,872 to 138 students (about $39,050 each) in 2024, per the school's IRS Form 990.

How to apply

Entry grades	Preschool, Pre-K, K, 1-5, 6-8, 9-12
Admission test, grades Preschool, Pre-K, K	No test
Admission test, grades 1-5	Its own assessment
Interview	None
Apply through	School's own portal
Application fee	$75
Deadline	January 5, 2027
Decisions released	February 26, 2027

College results, class of 2026

Seniors	70
Go to a 4-year college	97%
SAT (middle 50%)	1340 avg
ACT (middle 50%)	33 avg
AP courses	—
AP exams scored 3+	100%
National Merit semifinalists	—

School facts

Students	900
Teachers (full-time equivalent)	115
Students per teacher	7.3
School days per year	186
Endowment	$12,369,307 (FY2025)
Annual revenue	$55,108,640 (2024)
Head of school pay	$1,060,332

Where graduates went to college (2023-2026)

McGill University17
Northeastern University13
University of Chicago11
University of Michigan11
Columbia University7
Boston College6
Tufts University6
University of Southern California6
University of Toronto6
George Washington University5
New York University5
Barnard College4
Bocconi University4
Durham University4
IE University - Segovia4
Stanford University4
Tulane University4
University College London4
University of Edinburgh4
University of Virginia4
University of Washington4
Wake Forest University4
Boston University3
Georgetown University3
Parsons - The New School3
University of California, Los Angeles3
University of Oxford3
University of Pennsylvania3
Yale University3
Bowdoin College2
College of William & Mary2
Drexel University2
Harvard University2
IE University - Madrid2
Imperial College London2
King's College London2
Loyola University New Orleans2
Macalester College2
Northwestern University2
Princeton University2
Purdue University2
Sciences Po - Columbia University Dual BA Program2
Syracuse University2
Trinity College Dublin - The University of Dublin2
University College Dublin2
University of British Columbia2
University of California, Berkeley2
University of Colorado Boulder2
University of Pittsburgh2
University of Southampton2
American University
Babson College
Brown University
Case Western Reserve University
Chapman University
Colgate University
College of Charleston
Cornell University
Duke University
Ecole Polytechnique Federale de Lausanne Vaud
Emory University
Erasmus University Rotterdam
Goldsmiths, University of London
Grinnell College
Haverford College
Leiden University College
London College of Fashion
Loyola University Chicago
Middlebury College
Newcastle University
Oberlin College of Arts and Sciences
Occidental College
Pennsylvania State University
Pratt Institute
Rensselaer Polytechnic Institute
Rhode Island School of Design
Rochester Institute of Technology
Saint Mary's College of California
Savannah College of Art and Design
Spelman College
Swarthmore College
Technological University Dublin
Temple University
Toronto Metropolitan University
University of Amsterdam
University of Bristol
University of California, Davis
University of California, San Diego
University of California, Santa Cruz
University of Cambridge
University of Illinois, Urbana Champaign
University of Maryland, College Park
University of Miami
University of Minnesota
University of Navarra
University of Rochester
University of Sussex
University of Virginia - Wise
University of Waterloo
University of Wisconsin, Madison
Vanderbilt University
Virginia Polytechnic Institute (Virginia Tech)
Washington and Lee University
Washington University St. Louis
Wellesley College
Wesleyan University
Western University

From the school's college counseling profile.

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Washington International School FAQ

How much is Washington International School tuition?: For 2026-27, tuition at Washington International School is $34,315 for grades Preschool; $43,685 for grades Pre-K; $47,430 for grades K; $49,930 for grades 1-5; $55,780 for grades 6-8; $56,820 for grades 9-12, per the school's website.
Does Washington International School require the ISEE or SSAT?: It depends on the grade: no test for grades Preschool, Pre-K, K; its own assessment for grades 1-5.
When is the Washington International School application deadline?: The main application deadline is January 5, 2027, and decisions are released February 26, 2027. Families apply through the school's own portal.
What are Washington International School's average SAT scores?: Washington International School students averaged 1340 on the SAT (class of 2026), per the school profile.
Does Washington International School offer financial aid?: Yes. Washington International School reported $5,388,872 in financial aid to 138 students on its 2024 IRS Form 990.
How many students attend Washington International School?: Washington International School enrolls 900 students in grades Pre-K–12, with about 7 students per teacher (NCES Private School Survey, 2023-24).

More private schools in Washington, DC

Sources: tuition and admissions from wis.edu (checked Oct 2026); enrollment from the NCES Private School Survey 2023-24; finances from the 2024 IRS Form 990. “—” means we couldn't find it.