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