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