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