Thanks to this world map that shows the density of people with the surname Foo in different countries, you can get an idea not only of the popularity of the surname Foo in each country but also of the different migrations of people surnamed Foo.
The quantity of people with the surname Foo that we can find in each country can help us discern the origin of the surname Foo, as logic tells us that the place with the most people surnamed Foo will be the country or area of origin of the surname Foo.
Locating at a single glance the countries where the surname Foo is more abundant, as well as the areas of the globe where there are hardly any people with the surname Foo, is of great utility for individuals interested in surnames, and specifically in the surname Foo, as it allows them to quickly and easily visualize the data and its distribution."