Seoul Foreign School vs Seoul International School
🇰🇷 Seoul · Side-by-side comparison on verifiable public data.
Neither Seoul Foreign School nor Seoul 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: Seoul Foreign School offers IB, British while Seoul International School 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
| Seoul Foreign School | Seoul International School | |
|---|---|---|
| Curriculum | IB / British | American |
| Ages | 2–18 | 5–18 |
| Languages of instruction | English | English |
| Annual fees | KRW 26,740,000–33,370,000 | KRW 31,991,809–39,374,690 |
| Enrollment | 1,500 | — |
| Boarding | Day only | Day only |
| Accreditations | WASC, ICA | WASC |
Strengths
- ✓Full IB Continuum (PYP→MYP→DP) — exceptional vertical coherence; Korea's most experienced IB provider (40+ years)
- ✓Strong school-reported IB outcomes (avg 36; 98% pass rate) — well above world averages
- ✓Genuine dual-pathway choice: IB track plus a separate English National Curriculum British School
- ✓WASC-accredited (long-standing US regional accreditation)
- ✓Large, established community (~1,500–1,600 students, 50+ nationalities) on a rare 25-acre urban campus
- ✓Deep AP program (22+ courses, school-reported) plus AP Capstone Diploma pathway
- ✓Long, continuous WASC accreditation (since 1979, renewed through 2021)
- ✓50+ year track record; first MoE-recognised foreign school post-liberation
- ✓Small class sizes (high school ~12–20; ~15 average reported 2017–18)
- ✓Purpose-built eight-acre campus with ongoing facility investment (2013 building, 2019 library upgrades)
Trade-offs
- !No published BSO/ISI or independent inspection report for the British School — no third-party rating to verify quality claims; tier capped at A
- !No AP option, which families seeking a US college-prep AP track will not find here
- !Academic results are school-reported and not independently audited
- !Faith-based mission ('Centered in Christ') may not suit all secular families
- !Source inconsistencies (1912 vs 1913 founding; whether CIS accreditation and an IGCSE upper-secondary British track are offered) reduce confidence on some specifics
- !No IB pathway — purely AP/American, less flexibility for IB-seeking families
- !Non-Korean residency/citizenship requirement excludes many local families
- !AP exam results / pass rates are not published publicly
- !EAL/ESL support not described publicly despite an English-only environment — unclear provision for non-native speakers
- !Seongnam location is outside central Seoul (a commute consideration)
Best Fit For
- • Families committed to a full IB pathway from primary through diploma
- • US-citizen and globally mobile families wanting WASC accreditation and US-recognised credentials
- • Long-term placements valuing institutional heritage and a large multinational community
- • Families wanting an early-years British-curriculum option (British School, EY–Year 6)
- • Families holding non-Korean citizenship/PR seeking a US-curriculum, college-prep path
- • Students targeting US universities via a broad AP slate
- • Families wanting a small-class, established-community environment
University Placement
School-reported · not independently verified
School-reported, unverified: IB results (avg 36, 98% pass, 2021–2022). No university-destination/matriculation data was found on public pages.
School-reported, unverified: no AP exam results, score distributions, or university-placement statistics are published in the sources accessed.
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Frequently Asked Questions
Should I choose Seoul Foreign School or Seoul International School?
Seoul Foreign School is best for: Families committed to a full IB pathway from primary through diploma. Seoul International School is best for: Families holding non-Korean citizenship/PR seeking a US-curriculum, college-prep path. The right choice depends on target curriculum, budget, and family priorities — the two are not linearly comparable.
How do fees compare between Seoul Foreign School and Seoul International School?
Seoul Foreign School: KRW 26,740,000–33,370,000. Seoul International School: KRW 31,991,809–39,374,690. Verify against each school's own published fees; some figures are sourced from third-party aggregators.
What curricula do Seoul Foreign School and Seoul International School offer?
Seoul Foreign School: IB, British. Seoul International School: American.
Do Seoul Foreign School or Seoul International School offer boarding?
Seoul Foreign School: day school only. Seoul International School: day school only.
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 →