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