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