Average IQ in Australia
Australia has an average IQ of 102, ranking #9 out of 195 countries globally. This is considered high on the worldwide scale.
Key Statistics
Education System in Australia
Australia's education system varies by state/territory with 10-11 years of compulsory schooling. Features a strong university sector (Group of Eight) and consistent top-20 PISA performance.
IQ and Economic Development
Australia's GDP per capita of $55,540 places it among the world's wealthier nations. Research shows a moderate correlation (r ≈ 0.7) between national GDP and measured IQ, though this relationship is complex and bidirectional.
With 12.7 average years of schooling and a 5.2% GDP investment in education, Australia maintains a moderate investment in education.
Countries with Similar IQ Scores
Oceania Rankings
| # | Country | Avg IQ |
|---|---|---|
| 1 | New Zealand | 101 |
| 2 | Fiji | 87 |
| 3 | Samoa | 87 |
| 4 | Tonga | 87 |
| 5 | Papua New Guinea | 84 |
| 6 | Kiribati | 84 |
| 7 | Marshall Islands | 84 |
| 8 | Micronesia | 84 |
| 9 | Nauru | 84 |
| 10 | Palau | 84 |
Data Sources for Australia
National IQ estimates are approximate and based on meta-analyses of available cognitive testing data (Becker, 2019; Lynn & Vanhanen, 2012; World Population Review, 2025). These scores reflect measured test performance and are influenced by education, nutrition, healthcare, and socioeconomic factors — they do not measure innate intelligence. Within-country variation is much larger than between-country differences. IQ tests developed in Western contexts may not translate fairly across all cultures. Interpret with appropriate caution.
See the full methodology on our main IQ by Country page for complete source descriptions and data quality notes.
Frequently Asked Questions
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