In this world map, you can check at a single glance which countries have more people with the surname Castri. As you can see, it's effortless to notice which countries have a higher number of people carrying the Castri surname.
Thanks to this world map that shows the density of people with the surname Castri in different countries, you can get an idea not only of the popularity of the surname Castri in each country but also of the different migrations of people surnamed Castri.
The quantity of people with the surname Castri that we can find in each country can help us discern the origin of the surname Castri, as logic tells us that the place with the most people surnamed Castri will be the country or area of origin of the surname Castri.