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