Seoul Foreign School vs Yongsan International School of Seoul
🇰🇷 Seoul · Side-by-side comparison on verifiable public data.
Neither Seoul Foreign School nor Yongsan International School of Seoul 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 Yongsan International School of Seoul 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 | Yongsan International School of Seoul | |
|---|---|---|
| Curriculum | IB / British | American |
| Ages | 2–18 | 5–18 |
| Languages of instruction | English | English |
| Annual fees | KRW 26,740,000–33,370,000 | KRW 30,141,251–35,241,251 |
| Enrollment | 1,500 | 1,000 |
| Boarding | Day only | Day only |
| Accreditations | WASC, ICA | WASC, ACSI, EARCOS |
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
- ✓Full, dual accreditation (WASC + ACSI) plus Korean MoE recognition — accreditation depth at the cap for this market
- ✓Broad AP offering (27 courses) with College Board affiliation — strong US-university preparation
- ✓Long operating history (origins 1990; YISS since 2006) and large, stable enrolment (~1,000)
- ✓Genuinely international student body (43–45+ nationalities)
- ✓Structured learning support (SLS) including EAL
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
- !Explicit Christian-faith ethos with required Bible instruction and weekly chapel — a defining fit consideration for non-Christian or secular families (stated as a feature, not a judgement)
- !No IB pathway — families wanting IB DP must look elsewhere; AP is the only advanced track
- !No published IB average / externally verified academic-outcome metrics (AP results not public)
- !Fees are high (~KRW 30–35M/year) at the upper end of the market
- !No public school inspectorate in South Korea — quality signal limited to accreditation, capped at A
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 seeking a faith-based (Christian) education in Seoul
- • US-curriculum / US-university-bound students wanting a deep AP program
- • Internationally mobile families wanting WASC-accredited continuity
- • Families valuing character/service-learning programming
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 university-placement or matriculation data was found in public sources.
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Frequently Asked Questions
Should I choose Seoul Foreign School or Yongsan International School of Seoul?
Seoul Foreign School is best for: Families committed to a full IB pathway from primary through diploma. Yongsan International School of Seoul is best for: Families seeking a faith-based (Christian) education in Seoul. 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 Yongsan International School of Seoul?
Seoul Foreign School: KRW 26,740,000–33,370,000. Yongsan International School of Seoul: KRW 30,141,251–35,241,251. Verify against each school's own published fees; some figures are sourced from third-party aggregators.
What curricula do Seoul Foreign School and Yongsan International School of Seoul offer?
Seoul Foreign School: IB, British. Yongsan International School of Seoul: American.
Do Seoul Foreign School or Yongsan International School of Seoul offer boarding?
Seoul Foreign School: day school only. Yongsan International School of Seoul: 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 →