Washington International School - Tregaron Campus

Washington International School is a not-for-profit independent day school for ages 3 to 18 across two DC campuses. It offers the IB program from the Primary Years (PYP) through the Diploma (DP) for grades 11–12, with externally graded exams. In the early years, language immersion runs in French or Spanish; Grades 1–5 follow a dual-language program of English with either English/French or English/Spanish, while Mandarin begins in Grade 6. The school earns LabelFrancÉducation accreditation for high-quality French bilingual education and supports continued study through French or Spanish as Additional Languages. The Primary School includes a library with books in English, French, and Spanish, and the Lasseron Design Lab. The Tregaron Campus houses Middle and Upper Schools; Le Centre Brown, a science-centric facility, is under construction to LEED Gold standards and expected to open in 2025. WIS offers after-school programs and clubs such as Model UN, Amnesty International, and Pride Alliance.