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