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