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