Data

How many people are gifted? What statistics say

2.3% of the population, or one person in 44. This figure is not quoted: it is demonstrated. And it explains why the proportion is the same everywhere.

The IQ distribution

The figure is not measured. It is calculated.

You read everywhere that gifted people (HPI in French) would be "2.3% of the population", without ever knowing where the number comes from. It comes from the very construction of the scale.

The intelligence quotient is not a quantity that one would record, like a height or a weight. It is a normalized score: the Wechsler scale is built so that results are distributed according to a normal distribution with a mean of 100 and a standard deviation of 15.

In other words: the shape of the curve is decided in advance. It does not describe a discovery, it describes a measurement convention. That is why the proportion of gifted people is the same in France, worldwide, and in any population: it does not depend on the people, it depends on the rule that defines the score.

Bell curve of the distribution of the intelligence quotient, with a mean of 100 and a standard deviation of 15. Beyond 130, two standard deviations above the mean, lie 2.3% of the population.

A threshold of 130 is exactly two standard deviations above the mean. The share of the population that exceeds it is therefore a property of the normal distribution: 2.275%. No survey is needed to establish it - and none could disprove it.

Gifted, highly gifted, profoundly gifted

Three thresholds, and a rarity that collapses

Each step is about twenty times rarer than the previous one. On the whole curve, you cannot see it: you have to zoom in on the tail.

Zoom on the right tail of the curve, from an IQ of 125. Beyond 130: 2.275% of the population, one person in 44. Beyond 145: 0.135%, one in 741. Beyond 160: 0.0032%, one in 31,574.
ThresholdShare of the population
Gifted - IQ ≥ 130 (+2 standard deviations)2.275% · 1 person in 44 · about 1,560,800 in France
Highly gifted - IQ ≥ 145 (+3 standard deviations)0.135% · 1 in 741 · about 92,600 in France
Profoundly gifted - IQ ≥ 160 (+4 standard deviations)0.0032% · 1 in 31,574 · about 2,200 in France

Numbers calculated on a population of 68,606,000 people (INSEE, 1 January 2025).

Within an organization

One person in 44: what it means for your headcount

If gifted people are distributed at random in the working population, an organization has, on average, a little over 2 per 100 employees.

  • An SME of 50 people: about 1 gifted employee.
  • An SME of 200 people: about 4 or 5.
  • A mid-sized company of 1,000 people: around twenty.

What we will not say

You will read elsewhere that a given sector "attracts" more gifted people, backed by coefficients. We found no study that establishes it, and we will not invent it. The same goes for what a departure would cost: the amounts in circulation rest on nothing published.

What statistics allow us to say stops here. The rest comes from observing your organization - which is precisely our trade.

The number, in any case, is not the question. A gifted person who is poorly used produces no more than anyone else. What changes an organization is not counting them, it is the cross-functional reading that these profiles make possible - and the method that makes it accessible to everyone. The business leaders concerned have their own page: Gifted business leader.

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Frequently asked questions

What we are asked most often

What percentage of the population is gifted?
2.275%, or one person in 44. These are the individuals whose IQ reaches or exceeds 130, that is, two standard deviations above the mean. The proportion follows from how the scale is built: it is therefore identical in every population, and stable over time.
How many gifted people are there in a company?
About 2 per 100 employees, assuming a random distribution: 1 in an SME of 50 people, 4 or 5 in an SME of 200, around twenty in a mid-sized company of 1,000. No published study establishes that a business sector concentrates more of them; we therefore stick to a uniform distribution.
What is the difference between gifted, highly gifted and profoundly gifted?
They are three thresholds on the same scale. Gifted: IQ ≥ 130 (2.275%, 1 in 44). Highly gifted: IQ ≥ 145 (0.135%, 1 in 741). Profoundly gifted: IQ ≥ 160 (0.0032%, 1 in 31,574). Each step is about twenty times rarer than the previous one.
Why is the proportion the same everywhere?
Because IQ is a normalized score: the scale is calibrated so that the mean is 100 and the standard deviation 15, whatever the reference population. The curve is not a discovery, it is a measurement convention. Comparing "the percentage of gifted people in France" with that of another country therefore makes no sense: it is the same by construction.
Does IQ tell the whole story of a gifted person?
No, and that is the essential point. The score measures performance on a test, at a given moment. It says nothing about how a person works, decides, or holds up in an organization. In business, what counts is not the figure: it is the cross-functional reading these profiles are capable of, which, unlike the score, can be observed.

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