The quantity of people with the surname Delau that we can find in each country can help us discern the origin of the surname Delau, as logic tells us that the place with the most people surnamed Delau will be the country or area of origin of the surname Delau.
Locating at a single glance the countries where the surname Delau is more abundant, as well as the areas of the globe where there are hardly any people with the surname Delau, is of great utility for individuals interested in surnames, and specifically in the surname Delau, as it allows them to quickly and easily visualize the data and its distribution."