Average IQ in Papua New Guinea: Estimates & Context
Estimated Avg IQ
~83
Rank in This Dataset
#111
of 125 countries covered
Region
Oceania
Important note: National average IQ scores are estimates based on limited sample sizes and vary across studies. These figures are heavily influenced by socioeconomic factors, access to quality education, healthcare, nutrition, and testing conditions. They do not reflect the intelligence or potential of any individual from that country. IQ scores measure specific cognitive skills and should be interpreted within their proper scientific context.
Where These Numbers Come From — and Why They're Debated
There is no official global IQ census. National IQ figures like the one above come from compiled cross-national datasets — most famously the compilations begun by Richard Lynn and Tatu Vanhanen (IQ and the Wealth of Nations, 2002) and successor datasets, alongside alternative estimates derived from international student assessments such as PISA and TIMSS. These compilations are heavily debated in the academic literature: critics have documented small and unrepresentative samples for many countries, scores extrapolated from neighboring nations, mixing of different tests and decades, and translation and cultural-fit problems. Different datasets can shift a country's estimate — and its rank — by several points.
For these reasons, the figure for Papua New Guinea should be read as a rough estimate of average performance on Western-style cognitive tests under the conditions in which the underlying samples were collected — not as a measure of the innate ability or potential of Papua New Guinea's people. Population-level test averages track education access, childhood nutrition, health, and economic development, and they change as those conditions change (see the Flynn Effect below).
Education System in Papua New Guinea
Papua New Guinea has extreme linguistic diversity — over 800 languages — which creates significant challenges for a standardized education system. English is the official medium of instruction but is spoken as a first language by very few. Primary enrollment has expanded, but secondary school completion rates are very low. The country faces significant geographic challenges delivering education to remote highland and island communities. Teacher quality is inconsistent, many schools lack basic supplies, and cultural factors including gender inequality in some regions limit girls' education. Adult literacy stands at around 64%.
To understand what IQ scores measure and how they're calculated, see our guide on what IQ is. For a breakdown of what different score levels mean, visit our IQ score ranges page.
Papua New Guinea Compared to Oceania
Oceania IQ Comparison
Here is how Papua New Guinea compares to other countries in Oceania that are included in our database:
| Country | Average IQ | Global Rank |
|---|---|---|
| Papua New Guinea | 83 | #111 |
| Australia | 99 | #23 |
| New Zealand | 99 | #27 |
| Fiji | 84 | #112 |
Countries with Similar Rankings
These countries have similar average IQ scores and global rankings to Papua New Guinea:
| Country | Average IQ | Global Rank | Region |
|---|---|---|---|
| Madagascar | 69 | #101 | Africa |
| Mali | 69 | #102 | Africa |
| Niger | 69 | #103 | Africa |
| Chad | 68 | #104 | Africa |
| Brazil | 87 | #105 | South America |
Understanding IQ Distribution
It's crucial to remember that national averages represent the middle of a wide distribution. Within every country, individual IQ scores span the full range from below 70 to above 130 and beyond. A country with an average IQ of 83 will have many individuals scoring well above and below that number. Factors like socioeconomic status, nutrition, education quality, and access to healthcare play significant roles in cognitive development and test performance.
The Flynn Effect — the observation that IQ scores have risen substantially over time in many countries — suggests that environmental improvements like better nutrition, healthcare, and education access can significantly impact cognitive test performance at the population level. Many developing nations are experiencing rapid improvements in these areas.
Frequently Asked Questions
What is the average IQ in Papua New Guinea?
Papua New Guinea's average IQ is estimated at 83, ranking #111 globally. The country faces unique challenges combining extreme linguistic diversity, remote geography, and limited education resources.
Why does Papua New Guinea score 83 on average IQ?
Papua New Guinea's score reflects the enormous challenge of delivering education across 800+ languages and extremely remote mountainous and island terrain, English-medium instruction inaccessible to most students, low secondary school completion, inconsistent teacher quality, limited school supplies, and gender inequality limiting female education in many regions.
How does Papua New Guinea compare to Fiji?
Papua New Guinea (83) scores similarly to Fiji (84). Fiji has a smaller, more manageable population with better infrastructure and a longer history of accessible English-medium schooling. Papua New Guinea's linguistic fragmentation and geographic isolation create substantially more complex educational delivery challenges despite similar average scores.
Explore More Countries
See the full list of all countries on our Average IQ by Country page, or take our free IQ test to see how you compare.
MyIQScores Editorial Team
Editorial team focused on cognitive testing & psychometrics research
Last updated
May 10, 2026
MyIQScores content is written and maintained by our editorial team using published research in cognitive psychology and psychometrics as its source base. We label estimates as estimates, link primary sources where available, correct errors when readers flag them, and update pages as research or feedback warrants — see our corrections policy.