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