Scotland has the highest proportion of redheads in the world. It's estimated that around 13% of the Scottish population has red hair.
Ireland is also known for having a high percentage of redheads. It's estimated that about 10% of the Irish population has red hair.
Wales, part of the United Kingdom, has a significant number of redheads, though the percentage is slightly lower compared to Scotland and Ireland.
The Netherlands has a relatively high percentage of redheads compared to many other countries. It's estimated that around 2-4% of the Dutch population has red hair.
Belgium, a neighboring country to the Netherlands, also has a notable percentage of redheads, similar to its Dutch counterparts.
While the United States has a diverse population, it's estimated that around 2-6% of Americans have red hair.