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