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