Disclaimer: the following ranking represents Prep Zone Academy’s subjective opinion and readers are encouraged to consider it as an additional perspective to guide your school selection process. Readers should exercise their own judgment and conduct their own research when forming opinions based on the information provided.
Prep Zone’s Singapore IB School Rankings for the 2025-2026 academic year provides a comprehensive snapshot of how various schools offering the International Baccalaureate Diploma Programme (IBDP) have performed academically. These rankings, based primarily on average IB scores and the percentage of students scoring 40 points and above, offer valuable insights for students and parents navigating the competitive landscape of IB education.
Singapore IB School Rankings 2025–2026
This table shows how schools in Singapore offering the IB Diploma Programme performed academically, based on average IB scores and the percentage of students scoring 40 points and above.
Rankings provide a useful snapshot, but they should be read alongside factors such as student fit, learning environment, subject offerings, and academic support. Small differences in average scores often reflect cohort size, subject choices, and exam session timing rather than meaningful differences in school quality.
Where schools have not yet released their 2025 IB results, the most recently published 2024 results are shown clearly as placeholders.
Ranked Results
| Rank School | Exam Session | Average Score | 40+ Points | |
|---|---|---|---|---|
| 1 | Anglo-Chinese School (Independent) | Nov | 41.6 | 83% |
| 2 | St Joseph's Institution | Nov | 40.2 | 66% |
| 3 | Tanglin Trust School | May | 39.6 | - |
| 4 | School of the Arts (SOTA) ** | Nov | 39-40 | - |
| 5 | ACS (International) Singapore* | Nov | 39.0 | 47.28% |
| 6 | NPS International School | May | 38.6 | 55% |
| 7 | Hwa Chong International School | Nov | 38.0 | 44% |
| 8 | SJI International | Nov | 38.0 | 39% |
| 9 | GIIS SMART Campus | May | 37.2 | 36.3% |
| 10 | Dulwich College (Singapore) | May | 36.9 | 30.2% |
| 11 | NLCS (Singapore) | May | 36.5 | 25% |
| 12 | UWCSEA (Dover & East) | May | 36.3 | 31.2% |
| 13 | Dover Court International School | May | 36.0 | - |
| 14 | Canadian International School | May | 35.0 | - |
| 15 | Overseas Family School | May | 35.0 | 22.4% |
| 16 | Nexus International School | May | 35.0 | - |
| 17 | Stamford American International School | May | 35.0 | 14% |
| 18 | GESS - International School of Singapore | May | 34.6 | 18% |
| 19 | Chatsworth International School | May | 34.4 | - |
| 20 | Madrasah Aljunied Al-Islamiah* | Nov | 33.7 | - |
| 21 | Australian International School* | Nov | 33.3 | - |
| 22 | HWA International School | May | 34.0 | - |
| 23 | XCL World Academy | May | 33.2 | 11% |
| 24 | One World International School (OWIS) | May | 32.0 | - |
| 25 | Singapore Sports School* | Nov | N/A | - |
| 26 | ISS International School* | May | N/A | - |
| 27 | St Francis Methodist School* | Nov | N/A | - |
Methodology & Notes
- Rankings are based on published average IB scores for the 2025 examination cycle (May or November, depending on the school).
- Where a school has not yet released its 2025 average score, officially published 2024 results are used temporarily and marked with an asterisk (*).
- Schools that do not publish average scores but have consistently strong historical performance are shown with an estimated range and marked with a double asterisk (**).
- May and November cohorts are shown together for ease of comparison; exam session timing is indicated for transparency.
- Percentages under “40+ Points” represent the proportion of students scoring 40 points and above where publicly available. A dash (-) indicates data not published.
Key Highlights from the Rankings
Important Considerations
While rankings provide a useful overview, they should not be the sole factor in choosing a school. Factors such as student fit, learning environment, subject offerings, and academic support play crucial roles in a student’s success and well-being.
Minor differences in average scores often reflect cohort size, subject choices, and exam session timing rather than meaningful differences in school quality. Therefore, parents and students should consider these nuances alongside the rankings.
Moreover, the timing of exam sessions (May vs November) can impact results due to variations in cohort composition and exam conditions. This should be considered when comparing schools.
The absence of data for some schools or specific metrics (such as the percentage of students scoring 40+ points) means that the rankings may not fully capture the strengths of every institution.
Conclusions
The Singapore IB School Rankings 2025-2026 offer a valuable reference point for families considering IB education options. The impressive performance of schools like Anglo-Chinese School (Independent) and St Joseph’s Institution highlights the competitive academic environment in Singapore. However, the diversity in exam sessions and the variability in scores remind us that academic results are just one piece of the puzzle.
Choosing the right IB school is a highly personal decision that goes beyond rankings. It involves understanding the unique needs, interests, and learning styles of each student. Parents and students are encouraged to explore schools thoroughly, attend open houses, and engage with current students and educators to make informed choices.
Disclaimer
Prep Zone provides this ranking information as a helpful guide for students and parents interested in the IBDP in Singapore. However, these rankings are based on publicly available data and may not capture the full scope of each school’s educational quality or environment. Prep Zone does not endorse or guarantee the accuracy of the rankings and is not responsible for any decisions made based on this information. We encourage families to conduct their own research and visit schools to find the best fit for their individual needs.
