Australia ranks highly in global intelligence comparisons, often placing in the top 10-20 countries, with sources citing average IQ scores around 102.57 (9th globally) or 99.24 (17th globally) in recent years, reflecting strong intellectual capabilities compared to the world average of 100. Rankings vary slightly depending on the specific study and year, but generally position Australia above the global mean, sometimes near nations like Singapore, Canada, and Russia.
Australia landed in ninth place overall with an average IQ of 102.57 – that's a 0.97-point increase from last year and 2.57 points higher than the global average of 100. This places us in the top eight per cent of the 126 countries included (with any nations lacking sufficient data excluded).
Based on the results, China ranked first, with an average IQ score of about 107.2. South Korea came in second, followed closely by Japan in third place. Only countries with a sufficient number of participants were included in the final rankings, which is why some nations were left out. Story continues below.
Commonly used assessments in Australia include:
Educational psychologists consider a gifted IQ to be 130 or higher (98th percentile) on the WISC or WPPSI, or around 132+ on the Stanford-Binet.
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Snoop Dogg has publicly stated he has an IQ of 147, a score that falls into the "highly gifted" or "genius" category, much to his own surprise given his self-described average school performance (straight Cs). While this self-reported score suggests exceptional intellect, IQ tests measure specific cognitive abilities, and success in life and business (like Snoop Dogg's multifaceted career as a rapper, entrepreneur, and media personality) reflects a broader range of intelligence and skills.
There is no evidence that he ever took an IQ test. However, that has not stopped some people from trying to determine how smart he was. According to some sources, Einstein's IQ was probably about 160, which is commonly considered genius level. This number is largely derived from his achievements in physics.
Studies have shown that intelligence has a genetic component, but they have not conclusively identified any single genes that have major roles in differences in intelligence. It is likely that intelligence involves many genes that each make only a small contribution to a person's intelligence.
Terence Tao, a mathematics prodigy from Australia, holds an astonishing IQ of 230, making him one of the most intelligent individuals in recorded history.
Two of the most well-known IQ tests are 'Stanford-Binet' and 'Cattell' (explained in more detail below). In practice, qualifying for Mensa in the top 2% means scoring 132 or more in the Stanford-Binet test, or 148 or more in the Cattell equivalent.
Careers in the medical field, computer programing, university research positions, and engineering are among the ones with the highest requirements to be smart and have a high IQ.
Can IQ change with age? Yes. However, there is heavy debate over exactly how IQ and intelligence change with age. Studies have demonstrated that a person's fluid intelligence tends to decrease starting in their late 20s, while their crystallized intelligence tends to increase as they grow older.
An IQ score of 130 or higher is generally considered the threshold for giftedness, placing an individual in the top 2% of the population, though this can vary slightly by test and definition, with higher scores indicating more profound levels like Highly Gifted (145-159) or Exceptionally Gifted (160+). While 130+ is common for educational programs, some consider IQs from 115-129 as "mildly gifted" or "bright," showing above-average ability, notes the Davidson Institute.
According to data obtained from Mensa, Finland has the most geniuses per capita, followed by Sweden and the United Kingdom. Mensa was founded in 1946 to create a "society for bright people, the only qualification for membership of which was a high IQ," according to its website.
The only way to take an official IQ test in Australia is through a registered psychologist. At Psychology Melbourne, we provide face-to-face assessments using the WAIS-IV.
If you're asking “what is the average IQ in Australia”, data from IQTests.com reports that Australia's average IQ is exactly 100. This aligns with global norms and reinforces that an IQ score of 100 represents the standard benchmark for cognitive ability in both children and adults.
IQ averages serve as a standardized measure of cognitive ability, with the societal norm set at an average score of 100, and a standard deviation of 15. This means that approximately 68% of individuals score between 85 and 115, reflecting the typical range of intelligence within the population.
A weighted average has been calculated at 0.75, with about an absolute average difference of 8.0 IQ points. In comparison, identical twins reared together typically differ by 6 IQ points, non-twin siblings differ by 12 points, and complete strangers differ by 16.9 points.
Highly intelligent people are often extremely reflective. They journal, analyze their thoughts, think about their identity, question their motives, and explore philosophical ideas about the self.
In population-based studies, maternal IQ is the single greatest predictor of child IQ [17]. Maternal IQ reflects not only genetic influences, but also incorporates environmental factors affecting the child.
The estimates of Bill Gates's IQ generally fall between 160 and 170. According to standard IQ classification, this would place Gates in the "genius" or "near-genius" category, which includes individuals who perform in the top 0.1% of the population.
Celebrity Genius 5 - James Woods
Emmy Award winner James Woods is an Oscar-nominee and superstar has a whopping IQ of 180. While in high school, Woods was in a UCLA linear algebra course.
Stephen Hawking never officially revealed his IQ, and often dismissed the metric, famously saying, "People who boast about their IQ are losers". While estimates place his IQ around 160, a genius level, this is speculative; Hawking emphasized that creativity, persistence, and passion for science were more important than a single score, despite his profound impact on physics.