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School comparison · Seoul
Side-by-side comparison · Updated 2026-04-26 · Both schools in Seoul
| Metric | Korea Foreign School | US International School (USIS) |
|---|---|---|
| Curriculum | IB, British | American |
| Qualifications | IGCSE and A-Levels | — |
| Ages served | Ages 6 to 18 | Ages 6 to 18 |
| Language of instruction | English |
| English |
| True annual cost? | $23,563 | — |
|---|
| Hidden fee %? | +14% | — |
|---|
| First-year cost? | $25,063 | — |
|---|
| WhereNext Value Score? | 65/100 | — |
|---|
| Cost percentile (city)? | 50th | — |
|---|
| Students | 105 | — |
|---|
| Nationalities | 18 | — |
|---|
| Avg class size | 15 | — |
|---|
| Admissions | Competitive | Open |
|---|
| Accreditations | IBO, CIE | — |
|---|
Highlighted cells indicate which school holds the more favourable value for arriving expat families on that dimension (e.g. lower tuition, smaller class size, higher Value Score, more open admissions). Some rows are neutral.
Full profile · Korea Foreign School
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Full profile · US International School (USIS)
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Best value in Seoul
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True annual cost in Seoul
All schools ranked by total annual cost →
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