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School comparison · Nairobi
Side-by-side comparison · Updated 2026-04-26 · Both schools in Nairobi
| Metric | International School of Kenya | St. Mary's School Nairobi |
|---|---|---|
| Curriculum | IB, American | IB, British |
| Qualifications | — | IGCSE and IB Diploma |
| Ages served | Ages 4 to 18 | Ages 6 to 18 |
| Language of instruction | English | English |
| True annual cost? | $25,486 | — |
|---|
| Hidden fee %? | +3% | — |
|---|
| First-year cost? | $26,986 | — |
|---|
| WhereNext Value Score? | 67/100 | — |
|---|
| Cost percentile (city)? | 100th | — |
|---|
| Students | 1,070 | — |
|---|
| Nationalities | 65 | — |
|---|
| Avg class size | 20 | — |
|---|
| Admissions | Moderate | Open |
|---|
| Accreditations | IBO | 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 · International School of Kenya
View the full International School of Kenya school profile →
Full profile · St. Mary's School Nairobi
View the full St. Mary's School Nairobi school profile →
Best value in Nairobi
All schools ranked by WhereNext Value Score →
True annual cost in Nairobi
All schools ranked by total annual cost →
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