International School Altdorf
Institut Le Châtelard
| General | ||
| Founded | 2,016 | 1,954 |
| Location | Altdorf, Uri | Les Avants-sur-Montreux, Vaud |
| Altitude | 450m | 960m |
| Gender Policy | co-ed | girls-only |
| Age Range | 13–19 | 13–18 |
| Campus Size | 2 hectares | 3 hectares |
| Academics | ||
| Curricula | IB | Swiss Matura, French Baccalaureate |
| Teaching Languages | English | French |
| Average IB Score | 36 | N/A |
| Student:Teacher Ratio | 1:6 | 1:5 |
| Accreditations | IB | Swiss Federation |
| Student Body | ||
| Total Students | 80 | 60 |
| Boarding Students | 40 | 45 |
| Day Students | 40 | 15 |
| Nationalities | 20 | 20 |
| Fees & Costs | ||
| Tuition (from) | CHF 55’000 | CHF 45’000 |
| Tuition (to) | CHF 75’000 | CHF 65’000 |
| Registration Fee | CHF 1’500 | CHF 1’500 |
| Deposit | CHF 8’000 | CHF 5’000 |
| Hidden Fees (annual) | CHF 4’000 | CHF 6’500 |
| True Annual Cost | CHF 79’000 | CHF 71’500 |
| Features | ||
| Summer Program | ||
| Viewbook Available | ||
ISA — Facilities
Sports
Institut Le Châtelard — Facilities
Sports
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International School Altdorf vs Institut Le Châtelard: Which Is Right for Your Family?
Both International School Altdorf (founded 2016) and Institut Le Châtelard (founded 1954) are among Switzerland's most respected boarding schools. Located in Altdorf, Uri and Les Avants-sur-Montreux, Vaud respectively, each offers a distinctive approach to education.
Academics: ISA offers IB curricula, while Institut Le Châtelard provides Swiss Matura and French Baccalaureate.
Cost: Annual tuition starts at CHF 55’000 for ISA and CHF 45’000 for Institut Le Châtelard. Including hidden fees, the true annual cost is approximately CHF 79’000 and CHF 71’500.
Community: ISA has 80 students from 20 countries, while Institut Le Châtelard has 60 students from 20 countries. Both maintain small class sizes with student-teacher ratios of 1:6 and 1:5.