As an expert in global demographics and genetics, I can provide an informed estimate on the percentage of the world's population with blonde hair. It's important to note that the distribution of hair color is not uniform across the globe and is influenced by genetics and ancestry.

Blonde hair is most commonly found in people of Northern European descent, particularly in countries like Norway, Sweden, Finland, and the Netherlands. However, even within these regions, the percentage of the population with naturally blonde hair varies. For instance, in Norway, it's estimated that around 5% of the population has blonde hair. In Sweden, the percentage is slightly higher, with some sources suggesting around 6%. Finland and the Netherlands also have a significant number of blonde-haired individuals, but the exact percentages are not as widely documented.

Outside of Northern Europe, the occurrence of naturally blonde hair is much rarer. There are some populations in other parts of the world where blonde hair can be found, such as certain groups in Asia and Africa, but these instances are less common and often the result of specific genetic traits rather than a widespread trait within the population.

Given the concentration of blonde hair in Northern Europe and its relative scarcity elsewhere, it's safe to say that the percentage of the world's population with naturally blonde hair is quite low. Estimating an exact global percentage is challenging due to the lack of comprehensive data, but it's likely to be well below 10%.

To summarize, while it's difficult to provide a precise percentage, it's clear that blonde hair is not a common trait worldwide. The highest concentrations are found in specific regions of Northern Europe, and the global percentage is likely to be below 10%.

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As blond hair tends to turn brunette with age, natural blond hair is rare in adulthood, with claims of the world's population ranging from 2% naturally blond to 16 percent.read more >>