Collège du Léman vs International School of Geneva
🇨🇭 Switzerland (boarding) · Side-by-side comparison on verifiable public data.
Neither Collège du Léman nor International School of Geneva sits in a market with a public inspectorate, so both are assessed on verifiable accreditation, curriculum authorisation, and published data rather than an official quality rating. Both run the same curriculum (IB, British, American, National), so the differences come down to pathway detail, campus culture, and specific language/boarding arrangements rather than the curriculum framework itself. One practical difference: Collège du Léman offers boarding while the other is day-only — decisive for families who need a residential option. Verify current fees against each school's own figures (see the table below).
Key Facts
| Collège du Léman | International School of Geneva | |
|---|---|---|
| Curriculum | IB / British / American / National | IB / British / American / National |
| Ages | 2-18 | 3-18 |
| Languages of instruction | English, French | English, French |
| Annual fees | Day CHF 24,900–37,500; full-year boarding CHF 117,500 (2026-27) | CHF 19,800-35,470 per year (tuition only, 2025-2026; registration CHF 2,500 and a one-time Capital Development Fund fee of CHF 4,000 are charged separately) |
| Enrollment | 1,900 | 4,500 |
| Boarding | Yes | Day only |
| Accreditations | Council of International Schools (CIS), New England Association of Schools and Colleges (NEASC), IB World School, Nord Anglia Education | Council of International Schools (CIS), Middle States Association (MSA), IB World School |
Strengths
- ✓Five genuine High School exit pathways (IB DP, IB CP, American Diploma, French Baccalauréat, Swiss Maturité) under one roof.
- ✓Dual CIS and NEASC accreditation plus IB World School status.
- ✓Strong published outcomes: 100% diploma pass rate and IBDP average 36.5; 69% of IGCSE entries A*–A.
- ✓Authentic bilingual English/French education with structured language support.
- ✓Full day-and-boarding offer on a lakeside Geneva campus with broad Nord Anglia enrichment partnerships.
- ✓Founded in 1924 as the world's first international school and the birthplace of the IB Diploma Programme
- ✓Full IB continuum (PYP, MYP, DP, CP) plus Cambridge IGCSE and the Swiss Maturite
- ✓Genuinely bilingual English and French with a World Languages programme of more than 25 languages
- ✓Strong published 2025 IB outcomes (94-99 percent pass rates; average around 35 points)
- ✓Triple independent endorsement from CIS, MSA and the IB across three established campuses
Trade-offs
- !Very large and complex (~1,900 students, five pathways), diluting small-school intimacy.
- !For-profit Nord Anglia ownership brings commercial-group and standardization considerations.
- !High, largely additive fees for boarders, with exam fees charged separately.
- !No publicly graded state inspection report; assurance rests on accreditation cycles.
- !Large multi-campus scale (around 4,500 students) can feel institutional rather than intimate
- !Some pathways are campus-specific (IGCSE and Maturite only at La Chataigneraie; CP only at Campus des Nations)
- !Day school only, with no boarding
- !Premium fees plus separate registration and a one-time CHF 4,000 capital fee
- !No single graded public inspection rating exists in the Swiss system
Best Fit For
- • Globally mobile families needing a choice of IB, American, French or Swiss exit qualification.
- • Students wanting a genuinely bilingual English/French education.
- • Boarding families seeking a Geneva-area campus with care from age 10.
- • Households drawn to a large, multinational community and broad enrichment.
- • Internationally mobile families wanting an IB pathway from early years to Diploma
- • Bilingual French-and-English households seeking genuine dual-language instruction
- • Families valuing heritage, scale and breadth of recognised curricula
- • Students considering the Swiss Maturite or IGCSE alongside the IB
University Placement
School-reported · not independently verified
School-reported, unverified: 100% pass rate across all five diploma pathways; IBDP average 36.5; 69% of IGCSE entries A*–A.
School-reported, unverified: Ecolint publishes 2025 IB Diploma pass rates of 99 percent (Campus des Nations), 98 percent (La Grande Boissiere) and 94 percent (La Chataigneraie), with an average of about 35 points, drawn from its own admissions FAQ and not independently audited here.
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Frequently Asked Questions
Should I choose Collège du Léman or International School of Geneva?
Collège du Léman is best for: Globally mobile families needing a choice of IB, American, French or Swiss exit qualification.. International School of Geneva is best for: Internationally mobile families wanting an IB pathway from early years to Diploma. The right choice depends on target curriculum, budget, and family priorities — the two are not linearly comparable.
How do fees compare between Collège du Léman and International School of Geneva?
Collège du Léman: Day CHF 24,900–37,500; full-year boarding CHF 117,500 (2026-27). International School of Geneva: CHF 19,800-35,470 per year (tuition only, 2025-2026; registration CHF 2,500 and a one-time Capital Development Fund fee of CHF 4,000 are charged separately). Verify against each school's own published fees; some figures are sourced from third-party aggregators.
What curricula do Collège du Léman and International School of Geneva offer?
Collège du Léman: IB, British, American, National. International School of Geneva: IB, British, American, National.
Do Collège du Léman or International School of Geneva offer boarding?
Collège du Léman: offers boarding. International School of Geneva: day school only.
Questions parents ask
This comparison is BrightKey's independent assessment using verifiable public data only. University-placement figures are school-reported and not independently verified. BrightKey takes no payments from schools. Our method →