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