Thanks to this world map that shows the density of people with the surname Perez-yarza in different countries, you can get an idea not only of the popularity of the surname Perez-yarza in each country but also of the different migrations of people surnamed Perez-yarza.
The quantity of people with the surname Perez-yarza that we can find in each country can help us discern the origin of the surname Perez-yarza, as logic tells us that the place with the most people surnamed Perez-yarza will be the country or area of origin of the surname Perez-yarza.