Thanks to this world map that shows the density of people with the surname Firkus in different countries, you can get an idea not only of the popularity of the surname Firkus in each country but also of the different migrations of people surnamed Firkus.
Globalization can make the surname Firkus be found in almost every country around the globe, but being able to see the density of people residing in a country with the surname Firkus greatly aids all those who seek a deeper knowledge about the surname Firkus.