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