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