The quantity of people with the surname Troha that we can find in each country can help us discern the origin of the surname Troha, as logic tells us that the place with the most people surnamed Troha will be the country or area of origin of the surname Troha.
Locating at a single glance the countries where the surname Troha is more abundant, as well as the areas of the globe where there are hardly any people with the surname Troha, is of great utility for individuals interested in surnames, and specifically in the surname Troha, as it allows them to quickly and easily visualize the data and its distribution."