There's no single "smartest" nationality, as intelligence is complex, but studies on average IQ often rank East Asian countries like Japan, Taiwan, Singapore, and South Korea at the top, along with some European nations, reflecting factors like education, nutrition, and culture, though these rankings can vary significantly by the specific study's methodology and data used.
Japan ranks highest in average IQ globally, with an average IQ score of 106.48, according to recently updated data from DataPandas on May 20, 2025. National IQ is influenced by factors such as education, healthcare, nutrition, and economic stability.
Top 10 Most Intelligent People On Earth
Massachusetts took the top spot with the best academic success in the country and the highest average IQ.
Lady Gaga's IQ is widely rumored to be around 166, placing her in the "exceptionally gifted" or genius category, though this is an estimation often cited in celebrity lists, not a officially verified number from a public test. This high estimate is supported by her early academic achievements, like attending a summer program for the top 1% of students, and her demonstrated creative and musical genius as a composer and performer, notes Us Weekly and Brainmanager.io.
Lowest Ranking IQ States
The spread between the highest state (Massachusetts at 104.3) and the lowest (Mississippi at 94.2) is just over 10 points, or roughly two-thirds of a standard deviation.
Is Being a Genius Inherited?/Heritability of IQ. According to studies, genetics can drive anywhere between 30-75% of the variations in people's IQ levels. However, certain environmental factors and socioeconomic status can prevent a person from achieving their true genetic potential of IQ levels.
The signs of high intellectual power in adults are similar to those in children. They include quick learning, interest in unique topics, and the ability to process information fast, among others.
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.
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.
🇺🇸 CIA (USA): The largest and most resource-heavy agency, focused on global intelligence gathering. 🇬🇧 MI6 (UK): Legendary for human intelligence (HUMINT) and foreign operations. 🇮🇱 MOSSAD (Israel): Famous for precision covert operations and counter-terrorism.
Albert Einstein never took an official IQ test, so his score is an estimate, but most sources place it around 160, considered genius level, though some believe it could have been higher. This figure is based on his revolutionary scientific achievements, like the theory of relativity, rather than a standardized test. IQ tests from his era weren't as developed, and his unique thinking style makes accurate modern comparison difficult.
Finland: home to the smartest kids in the world
How to spot a genius – the 10 Behaviours Geniuses Display
Among each of the seven types of intelligence, intrapersonal intelligence is considered the rarest.
The Genius Test reveals your core strength: whether you're a Dynamo, Blaze, Tempo, or Steel genius. Understanding your genius helps you align your life and work with what comes naturally to you—leading to greater joy and productivity.
Researchers at the University of Edinburgh studied thousands of families and found that first born children often score higher on IQ tests. They receive more one to one attention in early childhood, which strengthens language skills and problem solving abilities.
Research on the effect of environment on brain development varies. In other words, according to one study, the genetic effect on intelligence is 75%, while the effect of the environment is 25%, while another study emphasizes that it varies according to age.
The presidents with the highest IQs were: John Quincy Adams (175), Thomas Jefferson (160), John F. Kennedy (159.8), Bill Clinton (159), Jimmy Carter (156.8), Woodrow Wilson (155.2), Theodore Roosevelt (153), Chester A.
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.
No, an IQ of 97 is not considered dumb; it falls squarely in the average range (90-109), indicating typical cognitive abilities, though some tests might place it slightly below the exact midpoint of 100. An IQ score of 97 means you performed better than 42% of people, and due to the test's margin of error, your score could be anywhere from the high 80s to the mid-100s, still within normal intelligence.