Luxembourg
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International School of Luxembourg (ISL) is a coeducational international school for ages 3 to 18, located at 36 Boulevard Pierre Dupong in Luxembourg. The campus serves Early Years, Primary, Middle and High School, with most students in the High School pursuing the International Baccalaureate Diploma Programme. ISL also offers Cambridge IGCSE in Grades 9–10 and is pursuing MYP authorization, with Grades 6–8 currently following the MYP framework. In High School, students may undertake the ISL Diploma and IB Course Certificates in addition to IB Diploma, including Theory of Knowledge, Extended Essay and Creativity, Activity, Service. Languages taught include English, French, German and Spanish, with French in Grades 6–10 and opportunities for additional languages. Facilities include dedicated Lower and Upper School libraries, digital learning resources, music, theatre and visual arts, and a broad sports program with NECIS. Activities include Model United Nations, Global Issues Network and the Duke of Edinburgh's Award.
36 Bd Pierre Dupong, 1430 Hollerich Luxembourg
International School of Luxembourg has 1,350 pupils, typical class sizes of 18, instruction in English.
The International School of Luxembourg is located at 36 Boulevard Pierre Dupong, L-1430 Luxembourg, Grand Duchy of Luxembourg. The postal address 36 Boulevard Pierre Dupong does not correspond to the geographic location. To reach the main building, head to the end of Boulevard Pierre Dupong, enter via the unnamed slip road onto the campus, and continue to the main building.
Early Years (Ages 3-5); Primary Years (Ages 6-11); Middle School (Ages 11-14); High School (Ages 14-18)
International school
Learning Support provides services for students with mild learning differences to meet their diverse needs, including collaborative planning with teachers, in-class support, short-term interventions, small group instruction and collaboration with external specialists. Accommodations for assessments are provided in line with recommendations by external professionals.
Annual tuition at International School of Luxembourg ranges from EUR 20,480 to EUR 24,226 for 2026/27.
International School of Luxembourg teaches IB (PYP), IB (MYP), IB (DP), Cambridge IGCSE for students aged 3 to 18.
ISL provides Early Years (Ages 3-5), Primary Years (Ages 6-10), Middle School (Ages 11-14), and High School (Ages 14-18). In High School, most students study the International Baccalaureate Diploma Programme in Grades 11-12. ISL is pursuing IB Middle Years Programme (MYP) authorization; Grades 6-8 currently follow the MYP framework while Grades 9-10 continue with Cambridge IGCSE, with full MYP implementation planned by 2027-2028. ISL High School offers the ISL Diploma and IB Course Certificates in addition to the IB Diploma, with core elements including Theory of Knowledge, Extended Essay, and Creativity, Activity, Service. Languages taught include English, French, German, and Spanish, with all Grades 6-10 studying French and many students taking German or Spanish as additional languages; Grade 10 decisions about continuing languages for the IB are made in that year.
10:1
ISL has a Higher Education and Careers Office with programmes to support university admissions and career planning from Grade 10 onward, including one-to-one and group guidance and access to resources. GOA (Global Online Academy) and Pamoja Education offer additional credit opportunities as part of ISL's post-secondary pathways; contact for Higher Education is HigherEd@islux.lu.
Learning Assistance Programme (LAP) offers extension for talents or strengths, with volunteers and staff providing one-to-one and small-group support for students with talents or strengths in addition to learning needs.
STEP 1. Online Application & Tours
Begin with the online application. An optional guided campus tour can be scheduled on the same day as the admissions interview or separately. Invitations are sent by the Admissions office after the online application and all required documents.
STEP 2. Interview & Testing
Upon completion of the online application and submission of all required documentation, the family and applicant are invited to an Admissions Interview and family meeting with the Head of Admissions and often other Admissions Committee Members. We prefer to meet families in school, but online meetings and admissions testing are available if in-person attendance is not possible. The interview process differs by age group. Foundations (children aged 3 as of August 31) and Pre-Kindergarten (children aged 4 as of August 31) participate in group interviews; sessions typically begin on Saturdays in late January for 2-3 weekends and continue later in spring, with individual arrangements if needed. Kindergarten involves individual admissions interviews. Grades 1–5 involve an essay writing component, and, if English proficiency is sufficient, a MAP test; English language learners may be asked to complete English placement assessments; interviews may be onsite or online for families outside Luxembourg. Grades 6–10 require a CAT4 assessment, an online English placement test if English is not the first language, with additional testing in English writing and Mathematics sometimes requested; applicants have a separate discussion with a relevant admissions committee member. Grade 11 requires a CAT4 assessment, an online English placement test if needed, an English essay, and a Mathematics test, followed by a separate admissions discussion. Grade 12: please contact the Admissions Office.
STEP 3. Decision
For the ongoing school year, decisions are shared within 10 school days after the admissions interview. For the next school year, foundations and pre-kindergarten first decisions are available mid-February; Kindergarten through Grade 11 first decisions are available late March or early April, thereafter within 10 school days after the admissions interview. Grade 12: please contact the Admissions Office.
An accepted applicant may be placed in a waiting pool due to temporary space constraints. We work closely with families in the waiting pool and contact them promptly to offer openings in their grade level when space becomes available.
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