Internationale Deutsche Schule Brüssel vs St. John's International School
🇧🇪 Brussels · Side-by-side comparison on verifiable public data.
Neither Internationale Deutsche Schule Brüssel nor St. John's International School 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. Curriculum is the core differentiator: Internationale Deutsche Schule Brüssel offers National while St. John's International School offers IB — the choice should follow the family's target qualification system. One practical difference: St. John's International School 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
| Internationale Deutsche Schule Brüssel | St. John's International School | |
|---|---|---|
| Curriculum | National | IB |
| Ages | 3 months–18 years | 1–18 |
| Languages of instruction | German, English, French | English, French |
| Annual fees | Not published | EUR 14,750–46,500 |
| Enrollment | 597 | — |
| Boarding | Day only | Yes |
| Accreditations | Exzellente Deutsche Auslandsschule (Gütesiegel, Bund-Länder-Inspektion 2008 / 2014 / 2023), Recognized German School Abroad (Deutsche Auslandsschule, ZfA-supported) | Council of International Schools (CIS), Middle States Association (MSA), International Baccalaureate Organization (IBO), Boarding Schools' Association (BSA) |
Strengths
- ✓Recognized German School Abroad with the "Exzellente Deutsche Auslandsschule" quality seal renewed across three Bund-Länder-Inspektion cycles (2008, 2014, 2023).
- ✓Continuous German-curriculum pathway from a bilingual Kita through to the Abitur and DIAP, giving direct access to German and international university systems.
- ✓Long-established institution (founded 1803) with a stable, ZfA-supported staffing and quality framework.
- ✓Structured support for non-native German speakers via a dedicated DaZ/DaF programme, plus catch-up courses in English and French.
- ✓Full IB continuum (PYP, MYP, DP) explicitly authorized and delivered from age 3 to 18
- ✓Strong published academic outcomes: 2025 IB Diploma average of 36 points (school-reported as best in Belgium), top score 43
- ✓Both day and boarding options (boarding for ages 11–17)
- ✓Highly international community with 65+ nationalities
- ✓Multiple recognitions displayed (IBO, CIS, MSA, BSA)
Trade-offs
- !Fee schedules are published only as downloadable PDFs, so tuition amounts are not transparently available on the public site.
- !Single German-language academic track offers less flexibility for families seeking an English-medium or IB/Cambridge route.
- !No IB or Cambridge authorization.
- !Only the IB pathway is offered, with no British or American curriculum track for families seeking those systems
- !High tuition, rising to EUR 46,500 for upper grades
- !Detailed language-support and EAL structure is only partially published on the public site
Best Fit For
- • German-speaking families or families on a German-curriculum track needing continuity toward the Abitur/DIAP.
- • Families wanting an established, quality-sealed German School Abroad in Brussels.
- • Younger children needing early bilingual German/English or German/French care from the Kita onward.
- • Expatriate and mobile families wanting a single IB continuum from early years to Grade 12
- • Families needing day or boarding places near Brussels
- • Students targeting the IB Diploma with strong measured results
University Placement
School-reported · not independently verified
School-reported enrollment of about 597 students (the school welcome text states "rund 590"; German Wikipedia figures range from 560 to about 600) — school-reported, unverified against an independent authority.
IB Diploma results are school-reported: a 2025 average of 36 points (described by the school as the best in Belgium), a top score of 43, and 40% of students scoring 38 or more. Individual university placement destinations are not published in verified detail on the public site (school-reported, unverified).
More Comparisons
Frequently Asked Questions
Should I choose Internationale Deutsche Schule Brüssel or St. John's International School?
Internationale Deutsche Schule Brüssel is best for: German-speaking families or families on a German-curriculum track needing continuity toward the Abitur/DIAP.. St. John's International School is best for: Expatriate and mobile families wanting a single IB continuum from early years to Grade 12. The right choice depends on target curriculum, budget, and family priorities — the two are not linearly comparable.
How do fees compare between Internationale Deutsche Schule Brüssel and St. John's International School?
Internationale Deutsche Schule Brüssel: Not published. St. John's International School: EUR 14,750–46,500. Verify against each school's own published fees; some figures are sourced from third-party aggregators.
What curricula do Internationale Deutsche Schule Brüssel and St. John's International School offer?
Internationale Deutsche Schule Brüssel: National. St. John's International School: IB.
Do Internationale Deutsche Schule Brüssel or St. John's International School offer boarding?
Internationale Deutsche Schule Brüssel: day school only. St. John's International School: offers boarding.
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 →