Thanks to this world map that shows the density of people with the surname Erroi in different countries, you can get an idea not only of the popularity of the surname Erroi in each country but also of the different migrations of people surnamed Erroi.
The quantity of people with the surname Erroi that we can find in each country can help us discern the origin of the surname Erroi, as logic tells us that the place with the most people surnamed Erroi will be the country or area of origin of the surname Erroi.
Locating at a single glance the countries where the surname Erroi is more abundant, as well as the areas of the globe where there are hardly any people with the surname Erroi, is of great utility for individuals interested in surnames, and specifically in the surname Erroi, as it allows them to quickly and easily visualize the data and its distribution."
Globalization can make the surname Erroi be found in almost every country around the globe, but being able to see the density of people residing in a country with the surname Erroi greatly aids all those who seek a deeper knowledge about the surname Erroi.