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