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