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