The quantity of people with the surname Filaj that we can find in each country can help us discern the origin of the surname Filaj, as logic tells us that the place with the most people surnamed Filaj will be the country or area of origin of the surname Filaj.
Globalization can make the surname Filaj 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 Filaj greatly aids all those who seek a deeper knowledge about the surname Filaj.