International School of Paris vs Marymount International School Paris
🇫🇷 Paris · Side-by-side comparison on verifiable public data.
Marymount International School Paris holds a public inspection verdict (CIS / Middle States Association (MSA) "Accredited (joint CIS/MSA re-accreditation visit in progress, 2025)"), while International School of Paris operates in a market with no public inspectorate — the former has a verifiable official quality anchor, the latter is judged on accreditation depth. Curriculum is the core differentiator: International School of Paris offers IB while Marymount International School Paris offers American — the choice should follow the family's target qualification system. Both are day schools with fees in the same market band — see the table below for the figures, and verify against each school's own published fees.
Key Facts
| International School of Paris | Marymount International School Paris | |
|---|---|---|
| Curriculum | IB | American |
| Ages | 3-18 | 2-14 (Pre-K to Grade 8; Grade 9 planned for Fall 2027) |
| Languages of instruction | English, French | English, French |
| Annual fees | EUR 25,500-39,000/year (2026-27) | EUR 23,750-39,000/year (2026/2027; first year higher with one-time enrolment fees) |
| Enrollment | 700 | 360 |
| Boarding | Day only | Day only |
| Inspection rating | — | CIS / Middle States Association (MSA): Accredited (joint CIS/MSA re-accreditation visit in progress, 2025) |
| Accreditations | Council of International Schools (CIS), New England Association of Schools and Colleges (NEASC), International Baccalaureate Organization (IBO) | Council of International Schools (CIS), Middle States Association (MSA) |
Strengths
- ✓Only full IB continuum (PYP/MYP/DP) school in central Paris, giving an unbroken age-3-to-18 pathway in one institution
- ✓Triple international accreditation and authorisation: CIS, NEASC and IBO across all three programmes
- ✓Highly international, language-diverse community of 700+ students from 60+ nationalities with no single nationality dominating
- ✓Dedicated English as an Additional Language and learning support for newly arrived and non-native English speakers
- ✓Consistent IB Diploma outcomes with a high bilingual-diploma rate (51 percent for the Class of 2025), reflecting genuine English-French biliteracy
- ✓Long heritage and stability as the oldest international school in France (founded 1923), with an established RSHM Catholic identity
- ✓Dual CIS and MSA accreditation, the recognised quality pairing for American-model international schools
- ✓Small, intimate community (~360 students, low student-to-teacher ratio) allowing close pastoral attention
- ✓Genuine dual-language French-English programme that builds local-language fluency alongside English-medium study
- ✓Strongly internationally diverse intake spanning more than 30 nationalities
Trade-offs
- !Premium fees up to EUR 39,000/year put it out of reach for many families
- !Day-only with no boarding, limiting it to families resident in or relocating to Paris
- !IB averages (around 32) are solid but not elite, below the most selective international schools
- !Split across three separate central-Paris campuses rather than a single unified site
- !Not an IB or Cambridge school and runs no externally examined diploma, so no published exam or IB-score outcomes exist to benchmark
- !Provision currently stops at Grade 8 (age 14), so families needing through-to-18 continuity must transfer for high school
- !Premium fees with a notably higher first-year cost driven by one-time enrolment and capital fees
- !No boarding and a single west-Paris (Neuilly) location, limiting catchment to nearby families
Best Fit For
- • Internationally mobile families wanting a single IB pathway from early years to graduation
- • English-speaking expatriate families relocating to central Paris
- • Families valuing English-French bilingual development within the IB framework
- • Students arriving mid-schooling who need structured EAL support
- • Internationally mobile families wanting an English-medium American-curriculum education in west Paris
- • Families seeking a values-led Catholic (RSHM) environment with an explicit justice-and-service ethos
- • Parents of early-years to middle-school children (ages 2-14) who value a small, high-touch community
- • Anglophone families who also want their children to gain real French through a dual-language programme
University Placement
School-reported · not independently verified
School-reported, unverified: ISP states its IB Diploma scores are consistently above world averages and that its bilingual-diploma rate is well above the world average; specific university destinations are not independently verified here.
School-reported, unverified: the school states a 99% acceptance rate to students' first-choice high school internationally and that 100% of students exceed MAP averages at all grades; these are self-published figures and are not independently verified.
More Comparisons
Frequently Asked Questions
Should I choose International School of Paris or Marymount International School Paris?
International School of Paris is best for: Internationally mobile families wanting a single IB pathway from early years to graduation. Marymount International School Paris is best for: Internationally mobile families wanting an English-medium American-curriculum education in west Paris. The right choice depends on target curriculum, budget, and family priorities — the two are not linearly comparable.
How do fees compare between International School of Paris and Marymount International School Paris?
International School of Paris: EUR 25,500-39,000/year (2026-27). Marymount International School Paris: EUR 23,750-39,000/year (2026/2027; first year higher with one-time enrolment fees). Verify against each school's own published fees; some figures are sourced from third-party aggregators.
What curricula do International School of Paris and Marymount International School Paris offer?
International School of Paris: IB. Marymount International School Paris: American. Marymount International School Paris inspection: CIS / Middle States Association (MSA) "Accredited (joint CIS/MSA re-accreditation visit in progress, 2025)".
Do International School of Paris or Marymount International School Paris offer boarding?
International School of Paris: day school only. Marymount International School Paris: 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 →