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